Southwest posted record Q2 2026 revenue of $8.43B (+16.4%) as its new fare, bag-fee and assigned-seating model lifted unit revenue, but a 69% jump in fuel cost held GAAP operating margin to 3.4% and full-year adjusted EPS guidance was cut to $3.25–$4.25.
Revenue
$8.4B
+16.4% YoY
Net income
$233M
+9.4% YoY
Diluted EPS
$0.47
+20.5% YoY
Operating margin
3.4%
Record revenue from the new fare model, mostly swallowed by a fuel shock
Southwest Airlines' second quarter of 2026 (April–June) was the first full quarter with all of its "transformational initiatives" live: bag fees (for tickets bought from May 28, 2025), assigned and extra-legroom seating (flights from January 27, 2026), and a restructured fare menu. The revenue effect was large. Operating revenue hit an all-time quarterly record of $8.43 billion, up 16.4%, on essentially the same amount of flying (capacity up 0.2%). But jet fuel cost $3.92 a gallon versus $2.32 a year earlier, adding $889 million of expense, so GAAP operating income rose only from $225 million to $285 million and the reported operating margin was a thin 3.4%.
The GAAP figures are also held down by a one-off accounting correction: a $285 million reversal of "breakage" revenue booked in 2022–2025 (explained below). Excluding it, revenue was about $8.7 billion (+20.3%), operating margin 6.7% (up 3.3 points) and EPS $0.94 versus $0.43.
Key figures
Metric
Q2 2026
Q2 2025
YoY Change
Operating revenue
$8,432M
$7,244M
+16.4%
Passenger revenue
$7,745M
$6,627M
+16.9%
Operating income
$285M
$225M
+26.7%
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Source: Southwest Airlines Form 10-Q for the quarter ended June 30, 2026, and its Q2 2026 earnings release (8-K Exhibit 99.1, July 22, 2026). "Excl. special items" figures are the company's non-GAAP measures.
A few terms used throughout: an available seat mile (ASM) is one seat, full or empty, flown one mile — the standard measure of how much an airline flies. RASM is operating revenue divided by ASMs, i.e. how much money each unit of flying brings in. CASM excl. fuel is operating cost per ASM with fuel removed, the cleanest read on whether an airline is controlling the costs it actually manages. Load factor is the share of seats that were filled with paying passengers.
Takeaway: The fare-and-seating overhaul is working on the revenue line — unit revenue excluding the accounting reversal rose 20.1% on flat capacity, and the average fare jumped 20.9% to $225.61 — but a 69% jump in fuel price consumed most of the gain, and management cut its full-year adjusted EPS outlook from "at least $4.00" to $3.25–$4.25. The overhaul has raised Southwest's earnings power; fuel now decides how much of it shows up.
What drove revenue
The 10-Q attributes the $1.1 billion (16.9%) rise in passenger revenue "primarily" to "a higher percentage of Customers purchasing higher fare categories as a result of the enhanced fare structure, coupled with an increase in new ancillary products," naming bag fees for first and second checked bags and paid assigned and extra-legroom seats, including the related effect on the co-branded credit card.
The operating statistics show that this was a pricing story, not a volume story:
Fewer passengers, paying much more. Revenue passengers carried fell 3.3% to 34.3 million, yet yield — what a passenger pays per mile flown — rose 15.4% to 20.74 cents, and the average one-way fare rose 20.9%.
Longer trips. Average passenger haul lengthened 4.7% to 1,088 miles while aircraft stage length was flat, which means more customers took connecting itineraries — consistent with the airline pruning short, low-fare markets.
Fuller planes. Load factor rose 0.8 points to 79.3%. The company says the RASM increase was "primarily due to a 15.4 percent increase in yield... along with a 0.8 point year-over-year increase in Load factor."
Other revenue (mostly loyalty and credit-card related) rose 11.2% to $637 million, "driven primarily by improved retail spend on the Company's co-branded credit cards." The earnings release adds that Chase co-brand card acquisitions grew 28% and managed business (corporate contract) revenue grew 30%, both record levels.
The $285 million breakage reversal
"Breakage" is revenue an airline books in advance for flight credits it expects customers never to use. Southwest's flight credits issued since mid-2022 don't expire, and more of them are being redeemed than the company had assumed. It raised its redemption assumption by 3 percentage points and reversed $285 million of breakage revenue previously recognized for credits issued between July 2022 and December 2025. This is a correction of prior years' revenue, not a sign of weaker Q2 demand, and it is why GAAP RASM (+16.2%) trails the adjusted figure (+20.1%). It does mean some revenue Southwest reported in 2022–2025 was overstated, and the company says it recorded no breakage on these credits in 2026.
What drove costs
Total operating expenses rose $1.13 billion (16.1%) to $8.15 billion; the 10-Q says "the vast majority of the dollar increase was due to higher Aircraft fuel and related taxes expense and Salaries, wages, and benefits expense."
Fuel: +$889 million (+67.0%) to $2.22 billion, "primarily attributable to increased jet fuel prices, particularly due to recent market disruptions and worldwide geopolitical events." The company links the price spike to developments in the Middle East. Q2 fuel cost $3.92 a gallon, up from $2.73 in Q1 2026. Southwest no longer hedges fuel (it ended the program; $29 million of premium expense on old, terminated contracts still ran through this quarter), so price moves pass straight through. The release puts the fuel headwind at $1.17 of adjusted EPS — larger than the $0.94 the company actually earned on that basis.
Labor: +$237 million (+7.3%) to $3.50 billion, mostly "step/pay rate increases and related benefits" — contractual raises, not headcount (full-time-equivalent employees rose 1.7%).
Airports: +$69 million (+12.2%), about half from higher airport rents, a quarter from higher landing fees tied to the heavier 737-8.
Offsets: maintenance fell $37 million (11.2%) on fewer 737-700 engine shop visits, and other operating expenses fell $32 million on larger gains from selling retired engines and aircraft.
Excluding fuel, profit sharing and special items, unit cost (CASM-X) rose 3.4%, which the company attributes "primarily" to wage rate inflation and which came in below its own prior guidance. Fuel efficiency (seat miles per gallon) improved 1.3% as the more efficient 737-8 made up a larger share of the fleet.
Below the operating line
Interest expense rose $25 million (64.1%) because of debt issued since Q2 2025, while interest income fell $21 million (38.9%) on lower cash balances. Southwest has been spending cash on buybacks, and its balance sheet now earns less and costs more.
Buybacks explain why EPS grew faster than profit. Net income rose 9.4%, but diluted shares fell from 541 million to 493 million (about 9%) — the company repurchased 28 million shares in Q1 2026 alone — so GAAP EPS rose 20.5%. $450 million remains under the $2.0 billion repurchase authorization.
The effective tax rate was steady at 23.8%.
Network and product changes
Southwest suspended operations at Chicago O'Hare and Washington Dulles effective June 4, 2026, and cut staffing at Atlanta, Fort Lauderdale and Philadelphia, describing this as intensified "network optimization." It launched Starlink Wi-Fi on its first aircraft on June 22, had 107 aircraft retrofitted with new RECARO seats by July 22, and added partnerships with Singapore Airlines and Air Premia (its ninth partner airline since February 2025), letting customers connect from its domestic network to international flights. The 737-700 fleet is losing six seats per aircraft to make room for extra-legroom rows, which raises cost per seat mile.
Guidance and outlook
Management's guidance from July 22, 2026 (based on the fuel forward curve as of July 17):
Q3 2026 guidance
Adjusted EPS
$0.50 to $0.75
Capacity (ASMs), YoY
-1% to flat
RASM, YoY
+17.5% to +19.5%
CASM-X, YoY
+3.5% to +4.0% (incl. ~1.1 pt from removing six seats on 737-700s)
Fuel per gallon
$3.70 to $3.75
For the full year 2026, adjusted EPS guidance is $3.25 to $4.25, replacing the prior "at least $4.00." Full-year capacity growth was trimmed to about 1.5% (from 2%), and 2026 net capital spending is expected at the low end of, or below, $3.0–$3.5 billion. The company expects 64 Boeing 737-8 deliveries and about 60 retirements this year. Liquidity was $5.3 billion ($3.8 billion cash plus a $1.5 billion undrawn revolver) with gross leverage of 2.1x.
Our read. The strategic overhaul is no longer a forecast. A 20% rise in adjusted unit revenue on flat capacity is an unusually large pricing gain for a US airline, and guidance for another 17.5–19.5% RASM increase in Q3 — even after lapping the first months of bag fees — suggests the higher fare mix is holding rather than fading after launch. Non-fuel cost growth of 3–4% a year is modest by comparison, so the business is structurally more profitable than a year ago.
Two things temper that. First, the full-year guidance range is now $1.00 wide and its midpoint ($3.75) is below the old floor; that reflects fuel, which Southwest has chosen not to hedge, so earnings will move with oil prices more than before. Second, the implied second-half is heavily weighted to Q4: first-half adjusted EPS was $1.39 and Q3 is guided to $0.50–$0.75, so hitting even the low end of the full-year range needs a much stronger final quarter. The Q3 report (likely late October, based on the company's usual timing) is the test of whether the pricing gains are durable enough to cover $3.70-a-gallon fuel. Watch as well for how the smaller network (O'Hare and Dulles exits, capacity turning negative) affects revenue and cost per seat mile, and whether cash keeps going to buybacks while interest expense climbs.