I'll research LUV thoroughly before writing the preview. Let me start by gathering recent filings, transcripts, and news.Let me read the most recent earnings materials and check for recent news and any guidance updates.Let me gather recent news, stock price performance, and check for any recent 8-K filings or press releases ahead of the print.Let me check the earnings-date press release and recent industry/peer read-throughs (Delta/United typically report first).Let me read the key peer read-throughs (Delta and United reported already) and the "priced in" airline piece to frame the setup.I have strong material. Let me get the prior-year Q2 comp and current consensus for context.I now have everything I need. Here's the earnings preview.


Southwest Airlines (LUV) — Q2 2026 Earnings Preview

Event: 2026 Q2 Earnings Call | Results due: after the close July 22, 2026 (management call 10:00 a.m. ET, July 23) | Price (7/21/26): ~$48.70


The one-sentence setup

This is the first full quarter with all of Southwest's transformation initiatives live (assigned/extra-legroom seating launched Jan 27, plus bag fees, basic economy, and re-priced Rapid Rewards) — so the revenue engine should look spectacular, but the print will be dominated by a single swing variable: fuel, which is why management refused to reaffirm its full-year number in April. With peers (Delta, United) having already reported strong quarters and raised/reaffirmed guidance, the bar is set on demand — the question is whether Southwest beats a fuel-conservative EPS guide and finally re-anchors its 2026 outlook.


1. What management guided for Q2 (from the April 22 release / April 23 call)

Metric Q2 2026 Guide Q2 2025 Actual (comp)
Adjusted EPS $0.35 – $0.65 $0.43
RASM (unit revenue), y/y +16.5% to +18.5% –3.1%
ASMs (capacity), y/y Flat to +1.0% +1.6%
CASM-X, y/y +3.5% to +4.0% (incl. ~1.2 pt from 737-700 seat removal) +4.7%
Fuel $/gal $4.10 – $4.15 (fwd curve 4/16) $2.32

Two things jump out: - The RASM guide (+16.5–18.5%) is enormous and management said it expects it to be "industry-leading by a wide margin." It reflects the full initiative ramp plus a "constructive" fare environment. For reference, that maps to roughly ~18¢ RASM vs. 15.41¢ a year ago. - Despite that revenue surge, the EPS guide midpoint ($0.50) is only modestly above last year's $0.43 — because guided fuel of ~$4.12 is nearly double the $2.32 Southwest paid in Q2 2025. On the Q1 call, Bob Jordan sized the Q2 fuel hit at ~$1 billion / ~10 margin points y/y. In short: initiatives vs. fuel is the entire story.

Where consensus sits: The Street generally clusters near the middle of that $0.35–$0.65 band. Given how wide it is, the "beat/miss" narrative will hinge less on the headline EPS and more on RASM upside and the fuel outcome (below).


2. The swing factor: fuel likely came in below the guide

The $4.10–$4.15 assumption was struck on the April 16 forward curve, at the height of the Iran-war jet-fuel spike (spot jet fuel peaked ~$4.88 in early April). Fuel then retreated through May–June — Delta noted spot jet fuel was back near ~$3.18 and set its Q3 assumption at ~$3.15. That means Southwest's blended Q2 average likely landed under its guide, a mechanical tailwind to EPS versus the midpoint.

This is exactly what happened at the legacy carriers: - Delta beat ($1.56 adj. EPS vs. ~$1.48 expected), said it recovered ~60% of the fuel cost increase in Q2 (faster than historically), and reaffirmed FY26 EPS of $6.50–$7.50 with a Q3 guide above the Street. - United raised its full-year outlook, framing "a legitimate shot at growing earnings year-over-year" despite a ~$6 billion fuel headwind, with corporate demand up ~30% in July and another industry fare increase pushed through that week.

Read-through: the demand/pricing backdrop that underpins Southwest's aggressive RASM guide has been validated by everyone who's reported. Watch for LUV to land at or above the high end of its EPS range if fuel behaved and RASM held.


3. The single most important thing to watch: does the FY26 guide come back?

In April, management explicitly declined to update its ~$4.00 full-year adjusted EPS target, saying doing so "would not be productive" given fuel volatility — while insisting $4 was "absolutely not off the table" and would require lower fuel and/or stronger revenue. Since then, both of those conditions have improved: fuel has fallen materially and peers confirm robust demand and sticky fares.

So the key catalyst on July 22–23 is whether Southwest reinstates or updates a full-year number (and/or refreshes the multi-year initiative EBIT target — previously ~$4.3B incremental EBIT in 2026). A credible, reaffirmed/raised FY guide would be the cleanest bull signal; another punt would disappoint even on a good quarter.


4. Initiative monetization — proof-of-concept quarter

Q1 already showed the model working; Q2 is the first full quarter and management said the initiatives don't hit full run-rate until Q3, so trajectory matters. Q1 markers to watch for continuation/acceleration: - Buy-up mix rose from ~20% (2025) to ~60% of customers upgrading from the base product; ~half of the 11.6% Q1 yield gain came from voluntary buy-up. - Managed corporate revenue +16% in Q1 (+25% in March) — the largest quarter/month in company history; management expects business share gains to keep building on the new product + Starlink. - Rapid Rewards enrollments +37%, tier-status earners +62%; credit-card remuneration ~+8%, with upside flagged if/when a high-fee premium card launches. - Bag-fee increase and dynamic pricing on stand-alone seats are incremental levers. - Starlink: first aircraft in service this summer, 300+ aircraft by year-end; ~2/3 of fleet with in-seat power/larger bins by late 2026.

Watch: the take-rate trend, cash-vs-points mix (management wants more cash), and any lift to the initiative EBIT target.


5. Costs, capacity, and the "H2 capacity" debate


6. Balance sheet & capital returns


7. Competitive & strategic backdrop


8. Stock setup / positioning

Implication: With a wide EPS band and a strong-demand backdrop already confirmed by peers, the reaction likely turns on (1) RASM vs. the industry-leading guide, (2) whether the FY26 guide is reinstated/raised, and (3) H2 capacity discipline. A beat that isn't accompanied by a re-anchored full-year outlook and disciplined capacity could see a "sell-the-news" fade.


Quick scorecard for the print

Watch item Bullish outcome Bearish outcome
EPS vs. $0.35–$0.65 At/above high end (fuel < guide) Mid/low end despite lower fuel
RASM Beats +18.5% high end Toward/below +16.5% low end
FY26 guide Reinstated / raised toward $4 Declined again
CASM-X Beats +3.5–4.0% (structural) In-line/above
H2 capacity Trimmed below implied ~3% Confirmed ~3% growth
Buybacks New/expanded authorization Paused pending FCF
Initiatives Take-rate accelerating to run-rate Buy-up/corporate momentum stalling

Bottom line: Fundamentally this should be a strong quarter — record-type revenue, huge RASM growth, structural cost wins — but the two things that move the stock are the fuel outcome relative to a conservative guide and whether management finally puts a full-year number back on the table. Demand risk has been de-risked by Delta and United; the debate now is valuation, H2 capacity, and credibility of the ~$4 EPS path.

(Note: figures and guidance above are drawn from Southwest's Q1 2026 earnings release/call and Q2 2025 release; peer data from Delta's and United's July 2026 reports. Fuel and demand conditions can shift ahead of the print — verify against the actual release.)