LUV · Q1 2026 Earnings

Cautious

Southwest Airlines

Reported April 22, 2026

30-second summary

Q1 FY2026 revenue grew 12.8% YoY to $7.25B with non-GAAP EPS of $0.45 — exactly meeting the "at least $0.45" floor set last quarter — and RASM grew +11.2% YoY against a "+9.5% at least" guide, validating the assigned-seating monetization thesis. But fuel was a $0.22 EPS / ~$164M Q1 FY2026 headwind and an implied ~$1B Q2 FY2026 headwind, full-year capacity was cut to the low end (2% vs 2-3%), and management refused to convert the $4.00 FY EPS floor into a range — explicitly saying an update "would not be productive at this time." Translation: the deliberate-underguide thesis from Q4 is now a "we're holding the line and hoping fuel cooperates" thesis.

Headline numbers

EPS

Q1 FY2026

$0.45

Revenue

Q1 FY2026

$7.25B

+12.8% YoY

Operating margin

Q1 FY2026

4.6%

Key financials

Q1 FY2026

Metric	Q1 FY2026	YoY	Q4 FY2025	QoQ
Revenue	$7.25B	+12.8%	$7.44B	-2.6%
EPS	$0.45	—	$0.58	-22.4%
Operating margin	4.6%	—	5.3%	-65bps

Guidance

Guidance is issued for the full year only, refreshed each quarter. Prior and new below are the same FY updated this quarter.

Actuals vs prior guidance

Metric	Period	Prior guide	Actual	Δ	Result
Adjusted EPS	Q1 FY2026	At least $0.45	$0.45	in-line	Met
ASM Growth YoY	Q1 FY2026	Up 1% to 2%	+1.5% YoY	in-line with midpoint of guide	Beat
RASM Growth YoY	Q1 FY2026	Up at least 9.5%	17.24 cents	+7-8pts above minimum guide	Beat
CASM-X Growth YoY	Q1 FY2026	Up approximately 3.5%	13.11 cents	in-line	Met

New guidance

Metric	Period	Guide	YoY
Adjusted EPS	Q2 FY2026	$0.35 to $0.65	—
ASM Growth YoY	Q2 FY2026	Flat to up 1.0%	—
RASM Growth YoY	Q2 FY2026	16.5% to 18.5%	+128-155% YoY
CASM-X Growth YoY	Q2 FY2026	3.5% to 4.0%	—

Changes to prior guidance

Metric	Period	Prior guide	New guide	Δ	Result
Capacity Growth	FY 2026	Up 2% to 3%	Approximately 2%	-0.5 to -1.0pts (now at low end vs prior range)	Lowered

Reaffirmed unchanged this quarter: Adjusted EPS ($4.00), Net Capital Spending ($3.0 billion to $3.5 billion), Boeing 737-8 Aircraft Deliveries (66 aircraft), Aircraft Retirements (Approximately 60 aircraft)

Segment KPIs

Q1 FY2026

Segment	Q1 FY2026	YoY
Passenger Revenue	$6.591B	+13.4%
Freight Revenue	$0.044B	+7.3%
Other Revenue	$0.614B	+6.6%
Managed Business Revenue Growth	+16% YoY	—

Other KPIs

Q1 FY2026

Segment	Q1 FY2026
RASM (Revenue per Available Seat Mile)	17.24 cents
CASM-X (Unit Cost ex-fuel, special items, profit sharing)	13.11 cents
Load Factor	74.1%
Operating Cash Flow	$1.4 billion
Rapid Rewards Enrollments Growth	+37% YoY
Customer Buy-Up Rate	60% upgrading from base product
Capacity (ASM) Growth	+1.5% YoY

Management tone

Q2 anchor → Q3 anchor → Q4 anchor → Q1 anchor: Demand stabilizing, bag fees outperforming → Execution outrunning pace of change → Structural earnings step-change unleashed → Transformation battle-tested, but fuel withholds the victory lap

Three quarters ago, fuel was a non-issue and the macro caveat was central; this quarter, fuel is the only variable management will discuss and macro has receded. Q2 FY2025 quantified a 5-6% macro demand shock and $1B EBIT hit. Q3 FY2025 chose to assume flat macro. Q4 said macro was no longer a constraint on the FY2026 number. This quarter management told Morgan Stanley that "only the change to full-year plan is fuel impact" — explicitly: $0.22 per share Q1 FY2026, ~$1B Q2 FY2026, 10 margin points. "Achieving this outcome would require lower fuel prices and or stronger revenue performance." The macro narrative has been replaced by a fuel narrative; the difference is that fuel is more measurable but less controllable.

Two quarters ago, management positioned the $4.00 EPS as "the lower end of our internal forecast" with a range coming this quarter; now they explicitly refuse to discuss the upper bound. Q4's text was unambiguous — Wall Street consensus was below the $4 floor, internal forecasts were above it, range to follow at the Q1 FY2026 print. The Q1 FY2026 print delivered $0.45 (the floor met, not beaten) and the range was withheld. "Given the ongoing macroeconomic uncertainty, updating our full-year adjusted EPS guide of $4 would not be productive at this time." This is not a tone shift in degree — it's a structural retreat from the Q4 posture. Management is no longer signaling upside; they are defending a floor and quietly acknowledging downside risk that requires "lower fuel prices and or stronger revenue performance" to neutralize.

The transformation framing has hardened from "in flight" to "battle-tested under stress" — a defensive reframe. Across Q2 through Q4 FY2025, the transformation was forward-looking: payoff to come in 2026. This quarter the language shifts: "Our transformed business model is being stress-tested in this unique environment of geopolitical upheaval and much higher fuel prices...yet it's producing top-tier industry financial results." The shift from "transformation will deliver" to "transformation has proven resilient" is what management wants investors to focus on instead of the EPS guidance withdrawal. The contrarian posture — explicitly naming and refuting the "domestic-only model can't generate long-haul margins" critique — is more assertive than typical Southwest communications but also reads as compensation for the absent upper-bound EPS guide.

Customer ancillary uptake exceeded what management dared signal pre-launch. Q3 FY2025 used the "knife edge yield improvement" language pre-launch. Q4 FY2025 reported "overwhelmingly positive" customer response but offered no quantification. This quarter delivers the number: "the mix of customers buying up from our base product increased from approximately 20% in 2025 to roughly 60% in the first quarter of 2026." That tripling in one quarter is the bull case in one data point and is what makes the "we're holding $4.00 floor" stance defensible even as fuel eats the upside.

On Q2 FY2026 unit revenue: management leaned into the competitive framing rather than the recapture math. Q1 FY2026 RASM landed at +11.2% YoY; Q2 FY2026 guide is +16.5-18.5% — a sequential acceleration. Jamie Baker pressed on why this looks "in line with pre-war expectations" when competitors have raised post-war. Management's answer — "current trends show even stronger yield traction than Q1 with stable volumes" — pivoted to "industry-leading by a wide margin" and called fuel-recapture assumptions "speculative and dangerous." "We expect unit revenue growth between 16.5% and 18.5% in Q2, industry-leading by a wide margin." That framing only works if peer growth slows enough to validate it; it does not address why Southwest is not explicitly underwriting more recapture into a stronger pricing environment.

Recurring themes management leaned on this quarter:

Fundamental business model transformation now complete and delivering resultsMargin expansion as primary achievement (8.1 point operating margin improvement YoY)Customer demand validation for new product offerings (ancillaries, seating)Cost discipline and operational efficiency (CASMX +2.3% vs 3.5% guide)Core competitive strengths (largest domestic network, #1 in 50 airports, reliability)Capacity discipline and network optimization (removing underperforming routes)

Risks management surfaced:

Significantly higher fuel costs (22 cent EPS headwind in Q1, $164M additional expense)Geopolitical upheaval and uncertain macroeconomic environmentSustained higher fuel prices requiring higher ticket prices to offsetIndustry stress and potential for separation dynamics among carriersVolatility in external macro conditions affecting guidance confidence

Q&A highlights

Jamie Baker · J.P. Morgan

Questioned why Southwest's Q2 RASM guide appears in line with pre-war expectations while competitors have raised guidance several points post-war. Also asked for clarification on traffic liability (ATL) methodology change, requesting old methodology comparison to reconcile flat ATL with strong revenue growth.

Management stated they are projecting current strong trends forward rather than speculating on fuel recapture, which they view as dangerous. On ATL, they declined to detail exact methodology differences, noting the new approach aligns with industry standards and peers, and emphasized nothing unusual in sequential or comparative trends.

Current trends show even stronger yield traction than Q1 with stable volumesManagement considers fuel recapture assumptions speculative and dangerousNew ATL methodology aligns with industry standard and Chase agreementSequential ATL trends are normal compared to competitors

Ravi Shankar · Morgan Stanley

Asked if Southwest is still on track for $4 EPS guidance for full year excluding fuel (using Feb 28 assumptions). Also inquired what inning the company is in regarding monetizing internal initiatives.

Management confirmed everything is on track or slightly better than expected outside of fuel, which represents a $0.22 Q1 headwind and ~$1 billion Q2 headwind. Reiterated they did not pull full-year guidance and scenarios exist to hit $4 EPS depending on fuel and revenue. On initiatives, expects full run rate in Q3 with optimization opportunity thereafter.

Only change to full-year plan is fuel impact$0.22 per share fuel headwind in Q1~$1 billion (10 margin points) fuel headwind expected in Q2Full initiative run rate expected Q3 2024

Scott Group · Wolf Research

Challenged management's assertion that only fuel changed, noting competitors are saying fuel is higher but revenue assumptions are also higher due to better pricing. Asked if Southwest is approaching fuel pass-through differently than in the past or versus competitors.

Management acknowledged the pricing environment is more constructive due to fuel, and industry is demonstrating coordinated pricing action. Explained they are unhedged (cost $150M annually previously) and cannot predict extraordinary circumstances like wars. Noted industry-wide unhedged position encourages constructive pricing behavior.

Hedging cost $150 million annually previouslyCompany is completely unhedgedPricing environment is more constructive than expectedIndustry-wide unhedged position creates coordinated pricing incentive

Mike Lindenberg · Deutsche Bank

Asked for specific average fare increase from moving passengers from 20% to 60% buy-up rate. Also questioned management's perspective on competing against government-controlled carriers.

On fares, management declined to break down by product but noted 11.6% yield increase YoY with at least half from voluntary buy-ups. On government carriers, management stressed Southwest's resilience, long-term focus, and margin leadership (expecting best margins among large U.S. carriers in Q1, 14-point margin expansion guidance for Q2).

11.6% yield increase year-over-yearAt least 50% of yield increase from voluntary buy-upsBest expected net margin among large U.S. carriers in Q114-point margin expansion in Q2 between unit revenue and unit cost

Atul Malaswari · UBS

Questioned rationale for 3% back-half capacity growth when competitors are cutting, given fuel backdrop. Also requested breakdown of structural cost improvements and implications for CASMX.

Management explained they started with conservative 2-3% capacity plan, now 2% for full year, with ongoing close-in demand shaping. Cost structural improvements attributed to: (1) people expense efficiency (~50% of costs) from high-quality operations; (2) technology optimization from Lauren's team; (3) maintenance/fleet efficiency from aircraft replacement. CASMX will benefit from 737 MAX transition and component maintenance optimization.

Full-year capacity guidance: 2% (down from initial 2-3%)Q2 capacity growth ~0.5%People costs represent ~50% of cost structureStructural, not timing-based, cost improvements

Answers to last quarter's watch list

Whether management converts the "at least $4.00" FY2026 EPS floor into a range with an upper bound at the Q1 FY2026 print — They did not. Management explicitly said updating the $4.00 EPS guide "would not be productive at this time" citing macro uncertainty. The Q4 commitment to range-bound guidance "when current quarterly results are reported" was broken. This is the cleanest negative resolution of the quarter — the deliberate-underguide thesis is now compromised. Status: Resolved negatively

Q1 FY2026 RASM landing at or above +9.5% YoY — RASM came in at +11.2% YoY (17.24¢ absolute), +170bps above the +9.5% floor. The Q4 framing that +9.5% was conservative is validated, and Q2 FY2026 guide of +16.5-18.5% points to further acceleration as initiatives bake in. Status: Resolved positively

Buy-up penetration on assigned/extra legroom seating — Disclosed clearly: 60% of customers buying up from base product vs 20% in 2025. This tripled in one quarter and already exceeds the "80% to 50%" basic-fare mix-shift framing from Q4. Yield is up 11.6% with at least half attributed to voluntary buy-ups. The 2027 ~$1.5B EBIT ramp target is materially de-risked. Status: Resolved positively

CASM-X printing inside the +3.5% Q1 FY2026 guide while ASMs grow only +1-2% — CASM-X came in at +2.3% YoY (13.11¢), below the +3.5% guide — a beat — and includes 1.1-1.2 points of seat-removal headwind. ASMs grew +1.5%, midpoint of guide. Cost discipline streak extends to a fourth consecutive in-line or better print. Status: Resolved positively

Net capex execution against the $3.0-3.5B range — Reaffirmed at $3.0-3.5B with no change. Boeing 737-8 delivery plan unchanged at 66 aircraft; retirements unchanged at ~60. No slippage flagged. Status: Resolved positively

What to watch into next quarter

Whether Q2 FY2026 EPS prints inside or above the $0.35-0.65 range, and where in that range — the 60% spread reflects fuel volatility; a print at $0.50+ with fuel at the high end of guide would meaningfully de-risk the FY $4 floor, while a sub-$0.40 print effectively cuts FY EPS without management saying so.

Whether management converts FY2026 EPS to a range at the Q2 FY2026 print, or holds the $4.00 floor for a second consecutive quarter — a second-consecutive non-update would be a de facto guidance cut.

Q2 FY2026 fuel cost per gallon landing inside the $4.10-4.15 assumption — every $0.10/gal of fuel above guide is meaningful given the ~$1B Q2 FY2026 headwind framing. Fuel is the single variable that determines whether the $4 floor holds.

Load factor reversing the 79.8% → 77.2% → 74.1% three-quarter slide — management dismisses it as a managed-for metric, but the absolute level is now a credibility issue if it does not recover with Q2 FY2026's seasonal lift.

Q2 FY2026 RASM landing at or above the +16.5% low end against flat-to-+1% capacity — confirms the buy-up ramp is durable beyond the launch quarter and validates the acceleration from Q1 FY2026's +11.2%; a miss on the low end would suggest the Q1 FY2026 buy-up rate captured pull-forward demand.

Any disclosure of the ATL methodology reconciliation — management's refusal to quantify on the call leaves a transparency gap on a material accounting change; investors should expect 10-Q detail and watch whether the reconciliation supports the reported RASM strength.

Sources

Southwest Airlines Q1 FY2026 earnings press release, SEC filing: https://www.sec.gov/Archives/edgar/data/92380/000009238026000044/er-3312026xerdoc.htm
Southwest Airlines Q1 FY2026 earnings call Q&A (analyst attribution: Baker/J.P. Morgan, Shankar/Morgan Stanley, Group/Wolf Research, Lindenberg/Deutsche Bank, Malaswari/UBS)

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