Southwest Airlines 10-Q 2026-06-30

Filed 2026-07-23. 8 sections, 242K characters. Original on sec.gov · Markdown · JSON

Cover and table of contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2026

or
☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ________ to ________

Commission File No. 1-7259

southwestheartimage.jpg

SOUTHWEST AIRLINES CO.

(Exact name of registrant as specified in its charter)

Texas74-1563240
(State or other jurisdiction of(IRS Employer
incorporation or organization)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

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 (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filerxAccelerated filer☐
Non-accelerated filer☐Smaller reporting company☐
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. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes ☐ No x

Number of shares of Common Stock outstanding as of the close of business on July 22, 2026: 489,208,201

TABLE OF CONTENTS TO FORM 10-Q

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

Condensed Consolidated Balance Sheet as of June 30, 2026 and December 31, 2025

Condensed Consolidated Statement of Comprehensive Income for the three and six months ended June 30, 2026 and 2025

Condensed Consolidated Statement of Stockholders' Equity as of June 30, 2026 and 2025

Condensed Consolidated Statement of Cash Flows for the three and six months ended June 30, 2026 and 2025

Notes to Condensed Consolidated Financial Statements

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Item 4. Controls and Procedures

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

Item 1A. Risk Factors

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Item 3. Defaults Upon Senior Securities

Item 4. Mine Safety Disclosures

Item 5. Other Information

Item 6. Exhibits

SIGNATURES

SOUTHWEST AIRLINES CO.

FORM 10-Q

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

Southwest Airlines Co.

Condensed Consolidated Balance Sheet

(in millions)

(unaudited)

June 30, 2026December 31, 2025
ASSETS
Current assets:
Cash and cash equivalents$3,791$3,231
Accounts and other receivables1,2181,149
Inventories of parts and supplies, at cost917775
Prepaid expenses and other current assets556490
Total current assets6,4825,645
Property and equipment, at cost:
Flight equipment26,19826,293
Ground property and equipment9,4859,163
Deposits on flight equipment purchase contracts616401
Assets constructed for others8888
36,38735,945
Less allowance for depreciation and amortization15,74515,700
20,64220,245
Goodwill970970
Operating lease right-of-use assets9531,089
Other assets1,0751,112
$30,122$29,061
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable$2,072$1,991
Accrued liabilities2,2472,349
Current operating lease liabilities283312
Air traffic liability6,5105,945
Current maturities of long-term debt2,156324
Total current liabilities13,26810,921
Long-term debt less current maturities3,7904,577
Air traffic liability - noncurrent1,6741,219
Deferred income taxes2,4212,289
Noncurrent operating lease liabilities660768
Other noncurrent liabilities1,2271,306
Stockholders' equity:
Common stock888888
Capital in excess of par value4,2944,322
Retained earnings16,67216,388
Accumulated other comprehensive income (loss)22(24)
Treasury stock, at cost(14,794)(13,593)
Total stockholders' equity7,0827,981
$30,122$29,061

See accompanying notes.

Southwest Airlines Co.

Condensed Consolidated Statement of Comprehensive Income

(in millions, except per share amounts)

(unaudited)

Three months ended June 30,Six months ended June 30,
2026202520262025
OPERATING REVENUES:
Passenger$7,745$6,627$14,337$12,438
Freight50449386
Other6375731,2521,148
Total operating revenues8,4327,24415,68213,672
OPERATING EXPENSES:
Salaries, wages, and benefits3,4993,2626,7976,364
Aircraft fuel and related taxes2,2151,3263,5712,575
Maintenance materials and repairs294331552623
Landing fees and airport rentals6365671,2081,090
Depreciation and amortization402400800795
Other operating expenses1,1011,1332,1392,223
Total operating expenses8,1477,01915,06713,670
OPERATING INCOME2852256152
NON-OPERATING EXPENSES (INCOME):
Interest expense643911885
Capitalized interest(12)(13)(25)(24)
Interest income(33)(54)(57)(138)
Other (gains) losses, net(40)(27)(13)(9)
Total non-operating expenses (income)(21)(55)23(86)
INCOME BEFORE INCOME TAXES30628059288
PROVISION FOR INCOME TAXES7367132

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

Relevant comparative operating statistics for the three and six months ended June 30, 2026 and 2025 are included below. The Company provides these operating statistics because they are commonly used in the airline industry and, as such, allow readers to compare the Company’s performance against its results for the prior year period, as well as against the performance of the Company’s peers.

Three months ended June 30,
20262025Change
Revenue passengers carried (000s)34,33135,507(3.3)%
Enplaned passengers (000s)44,51844,3850.3%
Revenue passenger miles (RPMs) (in millions)(a)37,34636,8851.2%
Available seat miles (ASMs) (in millions)(b)47,09346,9960.2%
Load factor(c)79.3%78.5%0.8pts.
Average length of passenger haul (miles)1,0881,0394.7%
Average aircraft stage length (miles)784786(0.3)%
Trips flown367,740367,952(0.1)%
Seats flown (000s)(d)59,00959,265(0.4)%
Seats per trip(e)160.5161.1(0.4)%
Average passenger fare$225.61$186.6520.9%
Passenger revenue yield per RPM (cents)(f)20.7417.9715.4%
Operating revenues per ASM (cents)(g)17.9115.4116.2%
Operating revenues per ASM, excluding special items (cents)18.5115.4120.1%
Passenger revenue per ASM (cents)(h)16.4514.1016.7%
Operating expenses per ASM (cents)(i)17.3014.9415.8%
Operating expenses per ASM, excluding fuel (cents)12.6012.114.0%
Operating expenses per ASM, excluding special items (cents)17.2714.8916.0%
Operating expenses per ASM, excluding fuel and special items (cents)12.5612.074.1%
Operating expenses per ASM, excluding fuel, profitsharing, and special items (cents)12.4512.043.4%
Fuel costs per gallon, including fuel tax (unhedged)$3.87$2.2671.2%
Fuel costs per gallon, including fuel tax$3.92$2.3269.0%
Fuel consumed, in gallons (millions)564570(1.1)%
Active full-time equivalent Employees73,45672,2421.7%
Aircraft at end of period803810(0.9)%
Six months ended June 30,
20262025Change
Revenue passengers carried (000s)63,50665,497(3.0)%
Enplaned passengers (000s)81,79581,5240.3%
Revenue passenger miles (RPMs) (in millions)(a)68,49767,5131.5%
Available seat miles (ASMs) (in millions)(b)89,14288,4270.8%
Load factor(c)76.8%76.3%0.5pts.
Average length of passenger haul (miles)1,0791,0314.7%
Average aircraft stage length (miles)7817790.3%
Trips flown698,110699,838(0.2)%
Seats flown (000s)(d)112,039112,502(0.4)%
Seats per trip(e)160.5160.8(0.2)%
Average passenger fare$225.76$189.9018.9%
Passenger revenue yield per RPM (cents)(f)20.9318.4213.6%
Operating revenues per ASM (cents)(g)17.5915.4613.8%
Operating revenues per ASM, excluding special items (cents)17.9115.4615.8%
Passenger revenue per ASM (cents)(h)16.0814.0714.3%
Operating expenses per ASM (cents)(i)16.9015.469.3%
Operating expenses per ASM, excluding fuel (cents)12.9012.552.8%
Operating expenses per ASM, excluding special items (cents)16.8915.3310.2%
Operating expenses per ASM, excluding fuel and special items (cents)12.8812.423.7%
Operating expenses per ASM, excluding fuel, profitsharing, and special items (cents)12.7612.402.9%
Fuel costs per gallon, including fuel tax (unhedged)$3.31$2.3342.1%
Fuel costs per gallon, including fuel tax$3.37$2.4040.4%
Fuel consumed, in gallons (millions)1,0591,071(1.1)%
Active full-time equivalent Employees73,45672,2421.7%
Aircraft at end of period803810(0.9)%

(a)A revenue passenger mile is one paying passenger flown one mile. Also referred to as "traffic," which is a measure of demand for a given period.

(b)An available seat mile is one seat (empty or full) flown one mile. Also referred to as "capacity," which is

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

Hedging and Aircraft Fuel Risk

Changes in fuel prices could materially affect the Company’s results of operations. As discussed in Note 3 to the unaudited Condensed Consolidated Financial Statements, the Company discontinued its fuel hedging program in

  1. During second quarter 2025, the Company terminated its remaining portfolio of fuel hedging contracts, which were scheduled to settle through 2027, to effectively close its fuel hedging portfolio and program. Consequently, the Company is fully exposed to fluctuations in fuel prices, as is common in the airline industry. The Company currently expects to consume approximately 532 million gallons of jet fuel in the third quarter of 2026. Based on this anticipated usage, a change in jet fuel prices of one-cent per gallon would impact the Company’s Aircraft fuel and related taxes expense by $5.3 million for third quarter 2026.

As of June 30, 2026, the Company had no cash collateral provided to or held from derivative counterparties and thus had no cash collateral exposure. See Note 3 to the unaudited Condensed Consolidated Financial Statements.

Financial Market Risk

The Company currently has agreements with organizations that process credit card transactions arising from purchases of air travel tickets by its Customers utilizing American Express, Discover, and MasterCard/VISA. Credit card processors have financial risk associated with tickets purchased for air travel because the processor generally forwards the cash related to the purchase to the Company soon after the purchase is completed, but the air travel generally occurs after that time; therefore, the processor will have liability if the Company does not ultimately provide the air travel. Under these processing agreements, and based on specified conditions, increasing amounts of cash reserves could be required to be posted with the counterparty. There was no cash reserved for this purpose as of June 30, 2026.

A majority of the Company’s sales transactions are processed by Chase Paymentech. Should Customer chargebacks processed by Chase Paymentech reach a certain level, cash proceeds from advance ticket sales could be held back and used to establish a reserve account to cover such chargebacks and any other Customer-disputed charges that might occur. Additionally, cash reserves are required to be established if the Company’s credit rating falls to specified levels below investment grade. Cash reserve requirements are based on the Company’s public debt rating and a corresponding percentage of the Company’s Air traffic liability. As of June 30, 2026, no cash holdbacks were in place.

See Item 7A "Quantitative and Qualitative Disclosures About Market Risk" in the Company's Annual Report on Form 10-K for the year ended December 31, 2025, for further information about market risk, and Note 3 to the unaudited Condensed Consolidated Financial Statements in this Form 10-Q for further information about the Company's derivative instruments.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act) designed to provide reasonable assurance that the information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms. These include controls and procedures designed to ensure that this information is accumulated and communicated to the Company's management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. The Company's management, with the participation of the Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the Company's disclosure controls and procedures as of June 30, 2026. Based on this evaluation, the Company's Chief Executive Officer and Chief Financial Officer have concluded that the Company's disclosure controls and procedures were effective as of June 30, 2026, at the reasonable assurance level.

Changes in Internal Control over Financial Reporting

There were no changes in the Company’s internal control over financial reporting (as defined in Rule 13a–15(f) under the Exchange Act) during the fiscal quarter ended June 30, 2026, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

See Item 3. Legal Proceedings in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 for a description of material legal proceedings. The legal proceedings described below are included in this Quarterly Report on Form 10-Q to disclose material updates or developments in the matter. Except as presented below and in the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, there have been no material changes to the legal proceedings disclosed in Item 3. Legal Proceedings in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025.

On January 7, 2019, a complaint alleging a violation of the federal Uniformed Services Employment and Reemployment Rights Act (“USERRA”) and seeking a certification as a class action was filed against the Company in the United States District Court for the Northern District of California. The complaint alleges that the Company violates section 4316(b) of USERRA because it does not provide paid “short-term” military leave (i.e., a military leave of 14 days or fewer) but does provide paid jury duty leave, bereavement leave, and sick leave, which the plaintiff alleges are “comparable” forms of leave under USERRA and its implementing regulations. The complaint seeks declaratory and injunctive relief, damages, liquidated damages, interest, and attorneys’ fees, expert fees, and litigation costs. On February 3, 2021, the Court granted the plaintiff’s motion for class certification and issued an order certifying a class comprised of current or former Employees who, during their employment with the Company at any time from October 10, 2004, through the date of judgment in this action, have taken short-term military leave and were subject to a collective-bargaining agreement, except for Employees subject to the Transport Workers Union Local 550 agreement covering meteorologists. On January 11, 2022, the Court granted the parties’ stipulated request to vacate the trial date as the Department of Defense had not yet produced the class members’ military pay and service records pursuant to the Company’s third-party subpoena. On August 18, 2022, the Court entered an order that effectively stayed the action, except for attention to the third-party subpoena, until after the Ninth Circuit issued its opinion in the matter of Clarkson v. Alaska Airlines, Inc. and Horizon Industries, Inc., an appeal from an order by the United States District Court for the Eastern District of Washington granting summary judgment in defendants’ favor on substantially the same claims at issue in this action. The Ninth Circuit issued its order in Clarkson on February 1, 2023, reversing the district court’s grant of summary judgment and remanding the Clarkson case to the District Court with instructions to consider the “pay during leave” issue in the first instance. The Company has received the military pay and service records. On October 29, 2024, the Company filed a motion to decertify the class, which was then fully briefed and set for hearing. On February 13, 2025, the parties filed a notice of settlement advising the Court that they reached a settlement in principle, and the parties made a stipulated request for the Court to vacate the case schedule, including the hearing on the Company's decertification motion, and to set a deadline of June 19, 2025, for the filing of either a motion for preliminary approval of the class settlement or a status update about the timing of the remaining steps in the settlement process. The Court granted the stipulation on February 14, 2025. On June 20, 2025, the Court granted the parties’ stipulated request to continue the deadline for filing a motion for preliminary approval of the class settlement and the Court reset the deadline for August 21, 2025. On September 25, 2025, plaintiffs filed a motion for preliminary approval of the settlement class. The class proposed in the settlement modifies the class definition to use an end date of January 1, 2026 (rather than treating the date of judgment as the end date). The settlement includes an $18.5 million settlement fund and prospective relief that includes a differential pay benefit for up to ten days of military leave per year, which will remain in place for at least five years once initiated. On December 11, 2025, the Court granted preliminary approval of the settlement. On May 12, 2026, the Court conducted a final approval hearing. On May 19, 2026, the Court granted final approval of the settlement, entered final judgment, and closed the case.

On December 27, 2019, a former customer service agent at Oakland International Airport, filed a putative class action complaint in the Superior Court of California, for the County of Santa Clara, against the Company alleging the following seven claims under the California Labor Code and Business & Professions Code: (1) failure to provide meal periods; (2) failure to provide rest periods; (3) failure to pay hourly wages; (4) failure to provide accurate wage statements; (5) failure to timely pay all final wages; (6) unfair competition; and (7) civil penalties for the foregoing. Plaintiff filed a First Amended Complaint on October 15, 2021, that asserted the same causes of

action and added a named plaintiff. The First Amended Complaint primarily seeks unpaid wages, interest thereon, and associated civil and statutory penalties, along with attorneys’ fees and costs. On February 26, 2025, the Court granted class certification as to the first cause of action for failure to provide meal periods, denied certification on the second through fourth causes of action, and granted certification on the fifth and sixth causes of action only insofar as they are predicated on the first cause of action. The certified class consists of all of the Company’s non-exempt ground employees in California who worked a shift in excess of five hours for the time period between October 24, 2014, forward. On April 17, 2025, the Company filed a summary judgment motion arguing that Plaintiffs’ first cause of action, and all causes of action predicated thereon, failed as a matter of law. The motion was granted on July 25, 2025. Judgment was entered in favor of the Company on September 2, 2025, and Plaintiffs filed a notice of appeal on September 4, 2025. On May 6, 2026, Plaintiffs filed their opening appellate brief. The Company’s answering brief is due on August 4, 2026. The Company intends to continue to vigorously defend itself in all respects.

Two complaints alleging violations of federal securities laws and seeking certification as a class action were filed (on January 10, 2023, and March 13, 2023, respectively) against the Company and certain of its officers in the United States District Court for the Southern District of Texas in Houston. The complaints seek damages on behalf of a putative class of persons who purchased or otherwise acquired the Company's common stock between June 13, 2020, and December 31, 2022. The complaints assert claims under Sections 10(b) and 20 of the Exchange Act and allege that the Company made material misstatements to investors regarding the Company's internal technology and alleged vulnerability to large-scale flight disruptions. The complaints generally seek money damages, pre-judgment and post-judgment interest, and attorneys' fees and other costs. The deadline in the first of these two cases to file a motion seeking appointment of lead plaintiff was March 13, 2023; four separate motions were filed, and three of the parties seeking appointment contested the issue. On July 17, 2023, the Court signed an order consolidating the two federal securities cases into the first-filed suit and also appointed plaintiff Michael Berry as lead plaintiff in the consolidated case, with his counsel of record to serve as lead counsel and liaison counsel. On September 15, 2023, the lead plaintiff filed an amended complaint that expanded the class period to include persons who purchased or otherwise acquired the Company's common stock between February 4, 2020, and March 14, 2023, while continuing to assert claims under Sections 10(b) and 20 of the Exchange Act based on alleged misstatements regarding the Company's internal technology and alleged vulnerability to large-scale flight disruptions. On November 20, 2023, the Company and the individual defendants filed a motion to dismiss the amended complaint for failure to state a claim. The plaintiffs filed an opposition brief on January 26, 2024. The Company and the individual defendants filed a reply brief on February 23, 2024. On December 5, 2024, the United States District Court for the Southern District of Texas denied the motion to dismiss on the basis that "the issues are better suited for a summary judgment motion after the parties have had the opportunity to engage in discovery." On December 21, 2024, the Company moved for reconsideration of the December 5, 2024, order and, in the alternative, for permission to pursue an interlocutory appeal. The plaintiffs opposed both requests for relief. On April 3, 2025, the United States District Court for the Southern District of Texas conducted a hearing on the Company’s motion for reconsideration and requested the parties to confer and submit an agreed post-hearing briefing schedule in order for the Court to evaluate and determine the sufficiency of the allegations in plaintiffs’ amended complaint in accordance with the Private Securities Litigation Reform Act. The parties submitted their respective briefing on these issues. On March 31, 2026, the Court signed a memorandum opinion and order that granted defendants’ motion for reconsideration, withdrew the Court’s prior order denying defendants’ motion to dismiss plaintiffs’ complaint, and granted defendants’ motion to dismiss plaintiffs’ complaint without prejudice. The order granted plaintiffs leave to amend the complaint under specified parameters, including that any amended complaint be filed by April 24, 2026, and be accompanied by a synopsis of no more than ten pages, explaining how the amendments address the grounds for dismissal stated in the Court’s March 31 order. The plaintiffs did not amend their complaint, but rather filed a motion for entry of final judgment on May 1, 2026. The Court entered final judgment on May 20, 2026, dismissing all claims with prejudice, and the plaintiffs filed their notice of appeal the same day. The Fifth Circuit Court of Appeals has entered a briefing schedule, and the plaintiffs’ opening appeal brief is currently due to be filed on August 25, 2026. On July 20, 2026, the plaintiffs filed a request pursuant to Fifth Circuit practice for a 30-day extension until September 24, 2026, to file their response, which the Defendants do not oppose. The Defendants intend to file a response brief in support of the District Court’s dismissal order. The Company denies all allegations

of wrongdoing in the complaint, believes the plaintiffs' positions below and on appeal are without merit, and intends to vigorously defend itself in all respects, including in opposing the appeal.

Starting on or about January 24, 2023, the Company’s senior officers and the Board received multiple derivative demand letters from legal counsel for purported Southwest Shareholders demanding that the Board investigate claims, initiate legal action, and take remedial measures in connection with the service disruptions occurring in December 2022. Generally, the demand letters broadly assert that the Company’s directors and senior officers did not make sufficient investments in internal technology systems to prevent large-scale flight disruptions, did not exercise sufficient oversight over the Company’s operations, approved or received unwarranted compensation, caused the Company to make materially misleading public statements, and breached their fiduciary duties to the Company. Additionally, since January 27, 2023, the Company has received multiple letters from counsel for purported Southwest Shareholders making statutory demands for the production of various books and records of the Company, purportedly in an effort to investigate possible derivative claims similar to those made the subject of the derivative demands discussed above. On June 13, 2023, a shareholder derivative suit was filed against certain of the Company’s current and former officers and directors in the 14th Judicial District Court of Dallas County, Texas, asserting claims for damages from alleged breach of fiduciary duty, waste of corporate assets, and unjust enrichment derivatively on the Company’s behalf against the individual defendants based on similar factual allegations as contained in the demand letters and in the federal class action complaints. On June 15, 2023, a second shareholder derivative suit was filed against certain of the Company’s current and former officers and directors in the United States District Court for the Northern District of Texas, asserting claims under Section 14(a) of the Exchange Act and for damages from alleged breach of fiduciary duty, indemnification, and unjust enrichment derivatively on the Company’s behalf against the individual defendants based on similar factual allegations as contained in the demand letters and in the federal class action complaints. On November 14, 2023, a third shareholder derivative suit was filed in the 134th Judicial District of Dallas County, Texas, by some of the same counsel involved in the June 13, 2023, suit against the same defendants in that suit and making allegations of the same operative facts and claims. On June 18, 2024, a fourth shareholder derivative suit was filed in the 101st Judicial District Court of Dallas County, Texas, asserting substantially similar claims as in the first two state court derivative suits. On June 26, 2024, a fifth shareholder derivative suit was filed in the United States District Court for the Northern District of Texas, asserting substantially similar claims as in the first federal derivative suit. On July 18, 2024, a sixth shareholder derivative suit was filed in the United States District Court for the Northern District of Texas, asserting substantially similar claims as in the first federal derivative suit (together with the previous demand letters and shareholder derivative suits, the “Derivative Actions and Demands”).

The Company and the Board have addressed the Derivative Actions and Demands in accordance with the applicable Texas statutes governing such demands and litigation. Pursuant to those statutes, a committee of independent and disinterested directors (the "Special Litigation Committee") was appointed to conduct an inquiry regarding the allegations in the Derivative Actions and Demands. The state court cases were consolidated into one state court case, and the federal cases were later consolidated into one federal case.

As described above, pursuant to the applicable Texas statutes governing derivative demands and litigation, the Special Litigation Committee was duly appointed to conduct an inquiry regarding the claims and allegations asserted in the Derivative Actions and Demands. The Derivative Actions and Demands were all stayed, formally or by agreement, pending the outcome of the investigation by the Special Litigation Committee. On September 19, 2024, the Special Litigation Committee formally reported its findings and resolution concerning its investigation of the Derivative Actions and Demands, which began in July 2023 and concluded with the September 19, 2024 report and resolution, which in turn were delivered to the Company and its Board on September 23, 2024. The Special Litigation Committee retained two law firms to represent the Special Litigation Committee in connection with the Special Litigation Committee’s investigation of the Derivative Actions and Demands and the Special Litigation Committee’s review and assessment of evidence gathered in its investigation. The Special Litigation Committee further reported, among other details, upon its appointment, the independence and disinterestedness of its members, the Special Litigation Committee’s investigative processes, including meetings, scope of investigation, volume of documents reviewed, numbers of witnesses interviewed, other presentations received, review and analysis of evidence and applicable legal standards, work with its counsel, and findings and preparation of the final report and

resolution of the Special Litigation Committee. Based upon the Special Litigation Committee report and the conclusions reached therein, the Special Litigation Committee, consistent with its appointment and delegated authority, unanimously adopted a resolution (i) determining that it is not in the best interests of the Company or its Shareholders to pursue the relief requested in the Derivative Actions and Demands; (ii) determining that it is in the best interests of the Company and its Shareholders to reject the Derivative Actions and Demands; (iii) determining that it is in the best interests of the Company and its Shareholders for the Company to move to dismiss the Derivative Actions and Demands; and (iv) instructing that the Company and counsel take all further actions necessary to implement the resolution. On December 26, 2024, the Board received a seventh demand letter, and on January 31, 2025, received an eighth demand letter, each containing allegations substantially similar to those presented in certain of the prior Derivative Actions and Demands, which are being addressed consistent with applicable Texas law governing such demands. On April 1, 2025, the Company filed a motion to dismiss or stay the consolidated state court derivative actions based on the forum selection clause in the Company’s bylaws and the pendency of the related federal derivative cases. In May 2025, the Company and the plaintiffs in the state court derivative actions filed a joint stipulation and proposed order to stay the state court derivative actions and, among other things, to make a ruling on a motion to dismiss in the federal derivative case binding upon the state court derivative actions. On June 18, 2025, the Company filed a motion to lift the stay in the consolidated federal derivative actions and an accompanying motion to dismiss based on the Special Litigation Committee's report, conclusions, and resolution. The parties have submitted to the Court a stipulation with a proposed schedule pertaining to further briefing and related proceedings in connection with the motion to dismiss. On June 26, 2026, the Court granted Defendants’ motion to lift the stay in this action in order to consider Defendants’ motion to dismiss and initially ordered the plaintiffs to respond to the motion to dismiss. The plaintiffs, with the agreement of Defendants, renewed their request for the Court to enter a scheduling order pertaining to briefing and related discovery and proceedings in connection with the motion to dismiss. On July 17, 2026, the Court signed an order setting forth a discovery and briefing schedule consistent with the limited discovery permitted by Texas Business Organizations Code §21.556. Pursuant to the July 17, 2026 order, the timing for the plaintiffs to file their response to the motion to dismiss and for the Company to file its reply in support of the motion are dependent upon the amount and timing of the limited discovery pursuant to the referenced statute and any motion practice as to the scope of that discovery. The Company intends vigorously to pursue the motion to dismiss.

On January 28, 2025, two participants in the Company’s retirement plans commenced a putative class action in the United States District Court for the Northern District of Texas against the Company, the Board, and certain of the Company’s officers. Plaintiffs purport to represent a class consisting of participants and beneficiaries in the Southwest Airlines Co. Retirement Savings Plan, the Southwest Airlines Co. 401(k) Plan, and the Southwest Airlines Co. ProfitSharing Plan (collectively, the “Plan”) who invested in the Harbor Capital Appreciation Fund from January 28, 2019 “through the date of judgment.” The complaint asserts that defendants mismanaged Plan assets and failed to monitor the Plan in violation of the Employee Retirement Income Security Act (“ERISA”) by, among other things, failing to remove the Harbor Fund as an investment option. The complaint seeks various forms of declaratory and monetary relief as well as attorneys’ fees, interest and other costs. The Company moved to dismiss the complaint for failure to state a claim, and the court denied the motion. On June 10, 2026, the court stayed all proceedings pending a decision by the U.S. Supreme Court in another case, Anderson v. Intel Corp. mv. Pol v Comm., Case No. 25-498, in which the Supreme Court will address the pleading standard for similar ERISA claims challenging investment options offered by a retirement plan. The defendants deny all allegations of wrongdoing, believe the plaintiffs’ claims are without merit, and intend to vigorously defend against these claims.

On April 29, 2025, the Company received a demand letter addressed to the Board, dated April 28, 2025, from a purported Southwest Shareholder contending that the Company’s directors and senior officers breached their fiduciary duties in connection with the Board’s decision to end Southwest’s Bags Fly Free policy and to begin charging passengers for bags. The letter demanded that the Board investigate the circumstances surrounding the policy change and bring suit against individual directors and officers who allegedly breached their duties to the Company. On June 27, 2025, the Company sent a response to the demand letter on behalf of the Board rejecting the allegations and denying them and any other form of wrongdoing. The response letter also noted that the Board approved an amendment and restatement of the Company’s bylaws that, among other things, established a minimum ownership threshold of three percent of Southwest’s outstanding shares in order for a Southwest shareholder to

institute or maintain a derivative proceeding, consistent with the provisions in Texas Senate Bill 29, which was signed into law on May 14, 2025. The response letter further noted that the purported shareholder who sent the demand letter claims to hold only 100 shares of the Company’s stock and thus fell well short of the three percent threshold. On July 10, 2025, the shareholder who sent the demand filed a shareholder derivative complaint in the United States District Court for the Northern District of Texas against various directors and officers of the Company based on the contentions asserted in the demand letter. The suit asserts, among other things, that the decision to change Southwest’s Bags Fly Free policy conflicts with the Company’s prior views regarding the policy and is detrimental to the Company’s business, and that the Company’s directors approved the policy to accede to pressure from large shareholder Elliott Investment Management L.P., to preserve their Board seats, or both, rather than to serve the Company’s interests. The complaint also asserts that the amendment and restatement of the Company’s bylaws is ineffective. On August 25, 2025, the Company and its Board moved to dismiss the derivative complaint and all claims on the grounds, among others, that the suit is barred by Texas Senate Bill 29 and the Company's bylaw passed pursuant thereto requiring a three percent ownership threshold in order for Company shareholders to bring derivative claims. The plaintiff opposed the motion, claiming the purportedly retroactive application of Texas Senate Bill 29 and the Company bylaw are unconstitutional; and the Company filed a reply in support of its motion to dismiss. Additionally, multiple entities sought and were granted leave to file three separate amicus curiae briefs in support of the Company's motion to dismiss and Texas Senate Bill 29; those included one amicus brief each by: (i) the Chamber of Commerce of the United States of America and the Texas Association of Business, (ii) the Alliance for Corporate Excellence, and (iii) Texans for Lawsuit Reform. Finally, in light of the constitutional challenge to Texas Senate Bill 29, on October 3, 2025, the State of Texas, represented by the Office of the Attorney General of Texas, filed a motion to intervene in the case and its own accompanying motion to dismiss the plaintiff's derivative suit and all claims therein as barred by Texas Senate Bill 29. The State of Texas’s motion to intervene was granted, and its motion to dismiss has been fully briefed by both the State and the plaintiff. On March 17, 2026, the District Court signed a memorandum opinion and order granting the defendants’ motion to dismiss and dismissing with prejudice all claims of the plaintiff. Also on March 17, 2026, the Court signed a final judgment dismissing with prejudice all claims of the plaintiff. On April 15, 2026, the plaintiff filed a notice of appeal to the United States Court of Appeals for the Fifth Circuit. On July 13, 2026, the plaintiff filed his opening appeal brief. The Company intends to file a response brief in support of the District Court’s dismissal order. The Company and its Board deny all allegations of wrongdoing, believe the plaintiffs' positions and appeal are without merit, and intend to vigorously defend themselves in all respects, including in opposing the appeal.

Item 1A. Risk Factors

There have been no material changes to the factors disclosed in Item 1A. Risk Factors in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Issuer Purchases of Equity Securities (1)
(a)(b)(c)(d)
PeriodTotal number of shares purchasedAverage price paid per shareTotal number of shares purchased as part of publicly announced plans or programsMaximum dollar value of shares that may yet be purchased under the plans or programs
April 1, 2026 through April 30, 2026—$——$450,000,095
May 1, 2026 through May 31, 2026—$——$450,000,095
June 1, 2026 through June 30, 2026—$——$450,000,095
Total——

(1) On July 23, 2025, the Board approved a $2.0 billion share repurchase authorization of the Company's common stock. Subject to certain conditions, repurchases may be made in accordance with applicable securities laws in open market or private, including accelerated, repurchase transactions from time to time, depending on market conditions.

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

Not applicable

Item 5. Other Information

None

Item 6. Exhibits

3.1Restated Certificate of Formation of the Company, effective May 18, 2012 (incorporated by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012 (File No. 1-7259)).
3.2Fifth Amended and Restated Bylaws of the Company, effective May 16, 2025 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed May 19, 2025 (File No. 1-7259)).
10.1Southwest Airlines Co. Amended and Restated 2007 Equity Plan Form of Notice of Grant and Terms and Conditions for Phantom Share Awards grants effective 2026. (1)
10.2Increase Joinder Agreement No. 1 and First Amendment to Credit Agreement, dated as of May 19, 2026, among Southwest Airlines Co., the banks party thereto, and the administrative agent party thereto.
31.1Rule 13a-14(a) Certification of Chief Executive Officer.
31.2Rule 13a-14(a) Certification of Chief Financial Officer.
32.1Section 1350 Certifications of Chief Executive Officer and Chief Financial Officer. (2)
101.INSXBRL Instance Document - The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCHInline XBRL Taxonomy Extension Schema Document.
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document.
101.LABInline XBRL Taxonomy Extension Label Linkbase Document.
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

(1) Management contract or compensatory plan or arrangement.

(2) Furnished, not filed.

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 thereunto duly authorized.

SOUTHWEST AIRLINES CO.
July 23, 2026By:/s/ Tom Doxey
Tom Doxey
Executive Vice President & Chief Financial Officer
(On behalf of the Registrant and in
his capacity as Principal Financial Officer)