Southwest Airlines (LUV) FY2025 Earnings Quality Report

Grade: D — Significant Concerns

Framework: Schilit *Financial Shenanigans* + Beneish M-Score + forensic accounting principles

Data: SEC EDGAR 10-K (Filed February 5, 2026, FY ended December 31, 2025) + Yahoo Finance

Auditor: Ernst & Young LLP — Unqualified opinion (1 critical audit matter: valuation of co-brand marketing component). Auditor tenure: 54 years (since 1971).

One-line verdict: Southwest Airlines is rebuilding its business model in real time, and the 2025 10-K captures the company mid-transformation. Revenue rose 2.1% to $28.06B, but free cash flow was negative $831M (capex of $2.7B vs CFFO of $1.84B), and the company spent $2.6B on accelerated share buybacks plus $399M in dividends while FCF was negative. Net income of $441M was down $24M despite a record $25.5B in passenger revenue — and included a non-recurring $116M benefit in FY2024 from reversal of breakage revenue on COVID-era flight credits. The screening engine flags one hard fail (E1, FCF after acquisitions negative three years in a row) plus one fail (C2, FCF < 50% of NI for three years), plus three watch items (A2 AR growth 108%, B2 CapEx +30%, C4 cash at 54%). Management's transformation is real — bag fees introduced May 2025, Basic fare product launched, co-brand credit card agreement amended in favor of Southwest, assigned/extra legroom seating launching January 2026, Getaways by Southwest vacation packages — but the 2025 financials reflect the cost of the transformation, not its benefits. The grade is D (not F) because the C4 cash ratio of 54% doesn't trigger the C4 critical fail threshold.

A Point-to-Point Airline Reinventing Its Commercial Model

From the MD&A: "The Company experienced a year of meaningful transformation and execution as it implemented its transformational initiatives, which were planned and designed to attract new Customers and improve both the Company's operational and financial performance." The MD&A lists 17 distinct transformation initiatives for 2025, including:

February 2025 workforce reduction: "In February 2025, the Company implemented a reduction in workforce that provided for the reduction of approximately 1,750 Employee roles, or 15 percent of corporate positions. As a result of the reduction in workforce, the Company incurred a one-time expense of $62 million during first quarter 2025, achieved 2025 savings of approximately $230 million, and estimates 2026 savings of approximately $310 million."

This is effectively a new company compared to pre-2024 Southwest. The hallmark single-fare, no-bag-fees, no-assigned-seating model is gone.

Financial Performance: Flat to Declining

From the MD&A comparison table:

Per the MD&A: "Passenger revenues for 2025 increased by $555 million, or 2.2 percent, compared with 2024, to achieve an all-time full year Company record of $25.5 billion. On a unit basis, Passenger revenues increased 0.6 percent, year-over-year. On both a dollar basis and a per unit basis, the increase was primarily due to an increase in bag fee revenues driven by the Company's policy change, coupled with an increase in the portion of the Company's co-brand credit card benefits that are now classified within Passenger revenues as a result of the amended and restated co-brand agreement with Chase."

Fuel costs were the tailwind. Fuel and oil expense fell $572M (-9.8%) "primarily driven by lower jet fuel prices." Fuel cost per gallon fell from $2.64 to $2.41 (-8.7%). Without this $572M tailwind, operating income would have been meaningfully lower.

Salaries and wages were the headwind. Up $723M (+5.9%) to $12.96B. This is the largest single cost increase and reflects contract ratification bonuses from 2024 labor agreements annualizing plus wage inflation.

Operating statistics tell a concerning volume story:

Load factor dropped 3 percentage points — a meaningful deterioration in a business where each empty seat is direct lost revenue. The ASM growth of 1.6% combined with the RPM decline of 2.2% shows Southwest flew more capacity with fewer passengers. Average fare rose from $178.40 to $190.41 (+6.7%) — fare increases offset the volume decline.

GAAP vs non-GAAP operating income:

Per the MD&A: "On a GAAP basis, the Company achieved in excess of 90 percent, and on a non-GAAP basis, achieved in excess of 70 percent, of its annual operating income during the fourth quarter of the year." This is an unusual disclosure — over 90% of annual operating income concentrated in Q4. It suggests that three quarters of the year were essentially breakeven while the transformation initiatives ramped.

Cash Flow: The Free Cash Flow Problem

Per the MD&A: "Net cash provided by operating activities for 2025 was $1.8 billion, and net cash provided by operating activities for 2024 was $462 million. The operating cash flows for 2025 were largely impacted by the Company's net results (as adjusted for noncash items), a $103 million profit-sharing contribution for 2024 pursuant to the Company's Retirement Savings Plan, and a $1.1 billion decrease in Air traffic liability primarily driven by immediate recognition of a larger portion of revenues (and thus lower revenue deferred) associated with the Company's co-brand agreement with Chase from 2025 modifications to the agreement."

Two things to unpack here:

The Chase co-brand agreement amendment is the operative accounting story. The MD&A states the amendment caused "immediate recognition of a larger portion of revenues (and thus lower revenue deferred)." This is the subject of E&Y's critical audit matter: "The Company estimated the selling prices over the term of the Agreement to determine the allocation of proceeds to the identified performance obligations... Auditing the valuation of the marketing component of the co-brand agreement with Chase was complex and highly judgmental due to the absence of observable standalone selling prices. A change in the estimated selling price of the marketing component could have a material impact on the timing of revenue recognition."

Free cash flow has been negative for four consecutive years. This is the fundamental quality signal:

The MD&A forecasts 2026 capex of $3.0B-$3.5B — higher than 2025's $2.7B. If CFFO doesn't scale commensurately, negative FCF continues into a fifth year.

Capital Allocation: Buybacks Despite Negative FCF

Per the MD&A: "During 2025, the Company continued to deliver value to its Shareholders by returning $2.9 billion to Shareholders through $399 million in dividend payments and $2.6 billion through accelerated share repurchase programs entered into by the Company with third party financial institutions."

Plus a January 2026 commitment: "Under a forward contract entered into by the Company in December 2025, the Company committed $750 million for an accelerated share repurchase program with a third party financial institution (the 'January 2026 ASR Program') under which the Company paid $750 million in January 2026 and received total delivery of 17,965,193 shares."

Plus: "Additionally, the Company launched a $400 million accelerated share repurchase program in January 2026 (the 'First Quarter 2026 ASR Program')."

Total Q1 2026 planned buybacks: $750M + $400M = $1.15B, on top of FY2025's $2.6B in buybacks. With negative free cash flow, these buybacks are being funded by debt reduction capacity and cash balance drawdown. Looking at the balance sheet:

Per the MD&A: "During 2025, the Company repaid the Convertible Notes, the PSP1 Payroll Support Program loan, and the PSP2 Payroll Support Program loan in the amounts of $1.6 billion, $976 million, and $566 million, respectively... Additionally, during 2025 the Company issued $750 million senior unsecured notes due 2035 and $750 million senior unsecured notes due 2028."

Net debt activity: paid down $3.24B of legacy pandemic loans + Convertible Notes, issued $1.5B of new senior notes. Net debt reduction of ~$1.74B — a positive. But against cash balance drawdown of ~$1.0B and the $2.6B buyback and $399M dividend, the capital return exceeds debt paydown by $3B.

Altman Z-Score of 1.20 is firmly in the distress zone (below 1.81). Airlines typically carry Z-Scores in the distress zone due to their capital-intensive balance sheets, so this alone isn't alarming, but it's consistent with the FCF picture.

The 18-Point Screening

Revenue Quality

A2 watch: AR growing 108% against 2.1% revenue growth is one of the most extreme in the screening set. For an airline where most revenue is prepaid (tickets purchased in advance), a sudden AR jump is unusual. The most likely explanations are: (1) the co-brand Chase agreement changes produced receivables from Chase that didn't exist before, or (2) corporate travel billing timing has lengthened as Southwest added more corporate customers. The MD&A doesn't give a direct explanation of the AR line.

Expense Quality

B2 watch: CapEx rose from $2.05B to $2.67B (+30.1%) "largely due to an increase in payments for scheduled aircraft deliveries." Southwest took delivery of 55 Boeing 737-8 aircraft in 2025 and expects 66 deliveries in 2026. The aircraft delivery ramp is a major cash demand.

Cash Flow Quality

C2 fails: FCF has been persistently below 50% of net income — mathematically, since FCF is negative and NI is positive, the ratio is negative.

Balance Sheet

Acquisition Risk

E1 fails: This check is named "serial acquirer" but in Southwest's case it's catching the persistent negative free cash flow from capital-intensive reinvestment (aircraft purchases), not M&A. Same signal, different cause.

Manipulation Score

Key Risks from the 10-K

1. Critical Audit Matter: Co-Brand Marketing Component Valuation

E&Y's critical audit matter is extraordinary specific — it's about the Chase co-brand agreement amendment: "the Company executed an amendment to its co-branded credit card agreement ('Agreement') with Chase Bank USA, N.A. ('Chase') in June 2025, through which the Company sells Chase loyalty points, the use of its brand and access to its Rapid Rewards Member lists ('the marketing component'), and certain ancillary benefits for Chase cardholders. The Company estimated the selling prices over the term of the Agreement to determine the allocation of proceeds to the identified performance obligations... A change in the estimated selling price of the marketing component could have a material impact on the timing of revenue recognition."

The "revenue initiatives" that drove FY2025 operating income improvement — bag fees, co-brand changes — are precisely what E&Y flagged. The $1.1B reduction in Air Traffic Liability that accelerated FY2025 revenue recognition traces directly to this agreement.

E&Y has served as LUV's auditor since 1971 — 54 consecutive years.

2. Boeing 737 MAX Dependency

The risk factors: "The Company is currently dependent on Boeing as the sole manufacturer of the Company's aircraft. If the MAX aircraft were to become unavailable for the Company's operations, or if the Company were not able to procure future aircraft in a timely manner or on favorable commercial terms, the Company's business plans, strategies, and results of operations could be materially and adversely affected."

The MD&A details the fleet situation: 803 Boeing 737 aircraft at year-end, including 300 MAX-8s. "The Company's order book with Boeing as of January 29, 2026, consists of a total of 467 MAX firm orders (271 Boeing 737-7 ('-7') aircraft and 196 -8 aircraft) for the years 2026 through 2031, including 27 -7 aircraft that were contractually committed for 2024, and 54 -8s that were contractually committed for 2025, but were not received."

Boeing failed to deliver 27 MAX-7s committed for 2024 and 54 MAX-8s committed for 2025. Southwest replanned capacity accordingly. The MAX-7 variant has not been certified by the FAA yet — the order book for 271 MAX-7s is theoretical until certification happens.

3. 43-Day Government Shutdown Impact

Per the risk factors: "in November 2025 during the partial government shutdown, the FAA issued an emergency order mandating an industry-wide reduction in flights at 40 major U.S. [airports]." The MD&A confirms: "Despite the negative impacts to bookings and travel associated with the government shutdown during a portion of fourth quarter 2025, the Company earned an outsized portion of its 2025 operating income during the period."

4. DOT Civil Penalty and December 2022 Operational Disruption

The MD&A: "In December 2025, the U.S. Department of Transportation ('DOT') amended a December 2023 order assessing a civil penalty of $140 million on the Company resulting from its December 2022 operational disruption by waiving the final cash installment that was due January 31, 2026, and issuing the Company an $11 million credit for the Company significantly improving its ontime performance and completion factor."

5. Activist Investor (Elliott) Influence

The 10-K/A exhibit list references: "Cooperation Agreement, by and among the Company and Elliott Investment Management L.P." The 10-K does not dedicate a section to activist dynamics, but the risk factors include: "The Company's business has been, and could in the future be, negatively affected as a result of actions of activist shareholders, and such activism could adversely affect the strategic direction and business results of the Company."

The 17 transformation initiatives listed in the MD&A are substantially aligned with the changes Elliott publicly advocated in 2024, including bag fees, assigned seating, and fleet optimization.

6. Fuel Cost Volatility

Fuel "represented approximately 19 percent of the Company's operating expenses for 2025." The $572M benefit from lower fuel prices in 2025 was the single largest positive swing factor. A reversal of that tailwind would be a direct headwind.

7. Labor Cost Inflation and Union Contracts

Salaries, wages, and benefits grew 5.9% to $12.96B. With 72,790 full-time equivalent employees (up 0.5% after the 1,750-person layoff), the average cost per employee rose roughly 5.4%. Labor contracts for pilots, flight attendants, and ground crews have inflationary pass-throughs.

8. Texas Bylaw Provisions

The 10-K notes: "the Company's bylaw passed pursuant thereto requiring a three percent ownership threshold in order for Company shareholders to bring derivative claims." This is part of the shareholder-rights restriction language adopted under Texas SB 29, and it's disclosed as a litigation/governance risk.

Summary

Grade: D — significant concerns driven by persistent negative free cash flow, aggressive buybacks despite the FCF deficit, and an accounting change (the Chase co-brand amendment) that accelerated revenue recognition into 2025.

Southwest's 2025 transformation is substantive. Bag fees, Basic fare product, assigned seating, co-brand agreement amendment, new international partnerships — these are strategic pivots that could improve revenue per passenger over time. The 6.7% increase in average fare and 0.6% rise in unit revenues in 2025 suggest some of the initiatives are working.

But the 2025 financial profile is weak:

The transformation story is plausible; the 2025 numbers don't support it yet. Watch Q1 and Q2 2026 for whether the assigned-seating launch and co-brand agreement benefits appear in reported revenue and load factor. Without operating improvements, the negative FCF trajectory combined with continued buybacks will draw down the cash balance further.

**Disclaimer**: This report is based on Southwest Airlines' FY2025 10-K filed with SEC EDGAR. This is NOT investment advice.

Data: SEC EDGAR 10-K + Yahoo Finance

Auditor: Ernst & Young LLP (Unqualified opinion, 1 critical audit matter — valuation of co-brand marketing component). Auditor tenure: 54 years (since 1971).

Fiscal year ended: December 31, 2025