LUV

luv-202601280000092380false00000923802026-01-282026-01-280000092380exch:XNYS2026-01-282026-01-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 28, 2026

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02 Results of Operations and Financial Condition.

On January 28, 2026, the Registrant issued a press release (the "Earnings Press Release") announcing its financial results for the fourth quarter and full year 2025. The Earnings Press Release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

January 28, 2026By:/s/   Tom Doxey

Tom Doxey Executive Vice President & Chief Financial Officer (Principal Financial Officer)

luv-202510220000092380false00000923802025-10-222025-10-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  October 22, 2025

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On October 22, 2025, the Registrant issued a press release (the "Earnings Press Release") announcing its financial results for third quarter 2025. The Earnings Press Release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

Item 7.01    Regulation FD Disclosure.

On October 22, 2025, the Registrant also posted on its investor relations website at www.southwestairlinesinvestorrelations.com a supplemental presentation (the "Supplemental Information") providing additional information with respect to its planned initiatives and financial outlook. The Supplemental Financial Information is furnished herewith as Exhibit 99.2 and is incorporated by reference into this Item 7.01. The Supplemental Information should be read in conjunction with the Earnings Press Release.

The information furnished in Items 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 99.2 Registrant’s Supplemental Information. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

October 22, 2025By:/s/   Tom Doxey

Tom Doxey Executive Vice President & Chief Financial Officer

(Principal Financial Officer)

luv-202507230000092380false00000923802025-07-232025-07-23

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  July 23, 2025

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On July 23, 2025, the Registrant issued a press release (the "Earnings Press Release") announcing its financial results for second quarter 2025. The Earnings Press Release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

Item 7.01 Regulation FD Disclosure.

The Registrant is announcing today that its Board of Directors has authorized a new $2.0 billion share repurchase program. Purchases by the Registrant under the new share repurchase program may, in management’s discretion, be made from time to time in open market or private transactions in such manner as may be deemed advisable by management from time to time (including, without limitation, pursuant to one or more 10b5-1 trading plans, accelerated share repurchase programs, and any other method that management may deem advisable) and may be discontinued at any time.

On July 23, 2025, the Registrant also posted on its investor relations website at www.southwestairlinesinvestorrelations.com a supplemental presentation (the "Supplemental Information") providing additional information with respect to its planned initiatives and financial outlook. The Supplemental Financial Information is furnished herewith as Exhibit 99.2 and is incorporated by reference into this Item 7.01. The Supplemental Information should be read in conjunction with the Earnings Press Release.

The information furnished in Items 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 99.2 Registrant’s Supplemental Information. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

July 23, 2025By:/s/   Tom Doxey

Tom Doxey Executive Vice President & Chief Financial Officer

(Principal Financial Officer)

luv-202504230000092380false00000923802025-04-232025-04-23

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  April 23, 2025

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On April 23, 2025, the Registrant issued a press release (the "Earnings Press Release") announcing its financial results for first quarter 2025. The Earnings Press Release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

Item 7.01 Regulation FD Disclosure.

On April 23, 2025, the Registrant also posted on its investor relations website at www.southwestairlinesinvestorrelations.com a supplemental presentation (the "Supplemental Financial Information") providing additional information with respect to its planned initiatives. The Supplemental Financial Information is furnished herewith as Exhibit 99.2 and is incorporated by reference into this Item 7.01. The Supplemental Financial Information should be read in conjunction with the Earnings Press Release.

The information furnished in Items 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 99.2 Registrant’s Supplemental Information. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

April 23, 2025By:/s/   Tom Doxey

Tom Doxey Executive Vice President & Chief Financial Officer

(Principal Financial Officer)

luv-202501300000092380false00000923802025-01-302025-01-300000092380exch:XNYS2025-01-302025-01-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 30, 2025

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02 Results of Operations and Financial Condition.

On January 30, 2025, the Registrant issued a press release (the "Earnings Press Release") announcing its financial results for the fourth quarter and full year 2024. The Earnings Press Release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

Item 7.01 Regulation FD Disclosure.

On January 30, 2025, the Registrant also posted on its investor relations website at www.southwestairlinesinvestorrelations.com a supplemental presentation (the "Supplemental Financial Information") providing additional information. The Supplemental Financial Information is furnished herewith as Exhibit 99.2 and is incorporated by reference into this Item 7.01. The Supplemental Financial Information should be read in conjunction with the Earnings Press Release.

The information furnished in Items 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 99.2 Registrant's Supplemental Financial Information. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

January 30, 2025By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer (Principal Financial and Accounting Officer)

luv-202410240000092380false00000923802024-10-242024-10-240000092380us-gaap:CommonStockMember2024-10-242024-10-240000092380luv:CommonStockPurchaseRightsMember2024-10-242024-10-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  October 24, 2024

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange Common Stock Purchase RightsNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On October 24, 2024, the Registrant issued a press release (the "Earnings Press Release") announcing its financial results for third quarter 2024. The Earnings Press Release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

Item 7.01 Regulation FD Disclosure.

On October 24, 2024, the Registrant also posted on its investor relations website at www.southwestairlinesinvestorrelations.com a supplemental presentation (the "Supplemental Financial Information") providing additional information with respect to its planned initiatives. The Supplemental Financial Information is furnished herewith as Exhibit 99.2 and is incorporated by reference into this Item 7.01. The Supplemental Financial Information should be read in conjunction with the Earnings Press Release.

The information furnished in Items 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Press Release. 99.2 Registrant’s Supplemental Financial Information. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

October 24, 2024By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202407250000092380false00000923802024-07-252024-07-250000092380us-gaap:CommonStockMember2024-07-252024-07-250000092380luv:CommonStockPurchaseRightsMember2024-07-252024-07-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  July 25, 2024

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange Common Stock Purchase RightsNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On July 25, 2024, the Registrant issued a press release announcing its financial results for second quarter 2024. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

Item 7.01 Regulation FD Disclosure.

On July 25, 2024, the Registrant also issued a press release announcing planned initiatives. The press release is furnished herewith as Exhibit 99.2 and is incorporated by reference into this Item 7.01.

The information furnished in Items 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 99.2 Registrant’s Initiatives Press Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

July 25, 2024By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202404250000092380false00000923802024-04-252024-04-250000092380exch:XNYS2024-04-252024-04-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  April 25, 2024

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On April 25, 2024, the Registrant issued a press release announcing its financial results for first quarter 2024. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

April 25, 2024By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202402060000092380false00000923802024-02-062024-02-060000092380exch:XNYS2024-02-062024-02-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 6, 2024

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition. On January 25, 2024, Southwest Airlines Co. (the “Company”) issued a press release announcing its financial results for the fourth quarter and full year 2023 (the “2023 Earnings Release”), referencing a change in estimate related to the the ratification bonus for its Pilots which was recorded in fourth quarter 2023. The change in estimate represented the Company's best estimate, at that time, with regards to the ratification bonus that is to be paid to each eligible Pilot, as determined as of the January 22, 2024, ratification date of the collective bargaining agreement with the Southwest Airlines Pilots’ Association.

Since the issue date of the 2023 Earnings Release, the Company was able to complete additional and detailed analysis to refine its Pilot ratification bonus accrual estimates as of December 31, 2023, including the related payroll taxes. As a result of this assessment, the Company accrued an additional $51 million expense (compared to the amount stated in the 2023 Earnings Release), as reflected in Salaries, wages, and benefits within Operating expenses, in the Updated Fourth Quarter and Fiscal Year 2023 Financial Results (the “Updated 2023 Financial Results”). The Company is providing the Updated 2023 Financial Results to update results furnished in the 2023 Earnings Release.

The Updated 2023 Financial Results are furnished herewith as Exhibit 99.1 and are incorporated by reference into this Item 2.02.

Item 7.01    Regulation FD Disclosure. The Company is also updating guidance furnished in the 2023 Earnings Release regarding its first quarter and full year 2024 operating expenses per available seat mile, excluding fuel and oil expense, special items, and profitsharing. Please refer to the Updated 2023 Financial Results, which are furnished herewith as Exhibit 99.1 and are incorporated by reference into this Item 2.02, for more information.

The information furnished in these Items 2.02 and 7.01 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Updated 2023 Financial Results 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

February 6, 2024By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer (Princi

luv-202401250000092380false00000923802024-01-252024-01-250000092380exch:XNYS2024-01-252024-01-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 25, 2024

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02                      Results of Operations and Financial Condition.

On January 25, 2024, the Registrant issued a press release announcing its financial results for the fourth quarter and full year 2023.  The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

January 25, 2024By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer (Principal Financial and Accounting Officer)

luv-202310260000092380false00000923802023-10-262023-10-260000092380exch:XNYS2023-10-262023-10-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  October 26, 2023

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On October 26, 2023, the Registrant issued a press release announcing its financial results for third quarter 2023. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Second Quarter 2023 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

October 26, 2023By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202307270000092380false00000923802023-07-272023-07-270000092380exch:XNYS2023-07-272023-07-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  July 27, 2023

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On July 27, 2023, the Registrant issued a press release announcing its financial results for second quarter 2023. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Second Quarter 2023 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

July 27, 2023By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202304270000092380false00000923802023-04-272023-04-270000092380exch:XNYS2023-04-272023-04-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  April 27, 2023

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On April 27, 2023, the Registrant issued a press release announcing its financial results for first quarter 2023. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s First Quarter 2023 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

April 27, 2023By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202301260000092380false00000923802023-01-262023-01-260000092380exch:XNYS2023-01-262023-01-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 26, 2023

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02                      Results of Operations and Financial Condition.

On January 26, 2023, the Registrant issued a press release announcing its financial results for the fourth quarter and full year 2022.  The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Fourth Quarter and Full Year 2022 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

January 26, 2023By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer (Principal Financial and Accounting Officer)

luv-202301060000092380false00000923802023-01-062023-01-060000092380exch:XNYS2023-01-062023-01-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 6, 2023

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable Former name or former address, if changed since last report

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition. The financial information included in Item 7.01 is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 7.01    Regulation FD Disclosure. Southwest Airlines Co. (the "Company") is providing guidance regarding selected fourth quarter 2022 financial trends in connection with operational disruptions in December 2022.

The Company canceled more than 16,700 flights from December 21, 2022 through December 31, 2022. The Company's preliminary estimate of fourth quarter 2022 available seat miles (capacity) is a decline of approximately 6 percent, as compared with fourth quarter 2019, which is roughly 4 points lower than previous guidance.

As a result of the operational disruptions, the Company currently expects to report a net loss in fourth quarter 2022, driven by a preliminary estimated fourth quarter 2022 pre-tax negative impact in the range of $725 million to $825 million. A significant portion of this impact is from an estimated revenue loss in the range of $400 million to $425 million. The remaining impact relates to an estimated net increase in operating expenses, primarily due to estimated travel expense reimbursements to Customers, the estimated value of Rapid Rewards® points offered as a gesture of goodwill to Customers that are expected to be redeemed, and premium pay and additional compensation for Employees, which was partially offset by lower fuel and oil and profitsharing expenses.

The information furnished in this Item 7.01 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Cautionary Statement Regarding Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Specific forward-looking statements include, without limitation, statements related to (i) the Company’s estimates of the number of, and financial and operational effects of, the flight cancellations; (ii) the Company's estimates regarding available sea

luv-202210270000092380false00000923802022-10-272022-10-270000092380exch:XNYS2022-10-272022-10-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  October 27, 2022

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On October 27, 2022, the Registrant issued a press release announcing its financial results for third quarter 2022. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Third Quarter 2022 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

October 27, 2022By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202207280000092380false00000923802022-07-282022-07-280000092380exch:XNYS2022-07-282022-07-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  July 28, 2022

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On July 28, 2022, the Registrant issued a press release announcing its financial results for second quarter 2022. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Second Quarter 2022 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

July 28, 2022By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202204280000092380false00000923802022-04-282022-04-280000092380exch:XNYS2022-04-282022-04-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  April 28, 2022

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On April 28, 2022, the Registrant issued a press release announcing its financial results for first quarter 2022. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s First Quarter 2022 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

April 28, 2022By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)

luv-202201270000092380false00000923802022-01-272022-01-270000092380exch:XNYS2022-01-272022-01-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 27, 2022

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02                      Results of Operations and Financial Condition.

On January 27, 2022, the Registrant issued a press release announcing its financial results for the fourth quarter and full year 2021.  The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Fourth Quarter and Full Year 2021 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

January 27, 2022By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer (Principal Financial and Accounting Officer)

luv-202110210000092380false00000923802021-10-212021-10-210000092380exch:XNYS2021-10-212021-10-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  October 21, 2021

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas1-725974-1563240 (State or other jurisdiction(Commission(I.R.S. Employer of incorporation)File Number)Identification No.)

P. O. Box 36611 Dallas,Texas75235-1611 (Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code:   (214) 792-4000

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act

(17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($1.00 par value)LUVNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company    ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Item 2.02    Results of Operations and Financial Condition.

On October 21, 2021, the Registrant issued a press release announcing its financial results for third quarter 2021. The press release is furnished herewith as Exhibit 99.1 and is incorporated by reference into this Item 2.02.

The information furnished in this Item 2.02 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits:

99.1 Registrant’s Third Quarter 2021 Earnings Release. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOUTHWEST AIRLINES CO.

October 21, 2021By:/s/   Tammy Romo

Tammy Romo Executive Vice President & Chief Financial Officer

(Principal Financial and Accounting Officer)