DAL — Q3 2026 Financial Report Analysis

Fares kept rising faster than fuel. Delta's own forecast didn't keep up.

Delta took in a record $20.19 billion in the September 2026 quarter, up 21% from a year earlier. It flew almost exactly the same number of seats, and passengers paid about 14% more per mile. Profit still fell. Operating income dropped 14% to $1.45 billion and net income fell 47% to $756 million. The biggest reason is jet fuel: Delta paid an average $3.80 a gallon, up 68% from $2.26. A smaller part of the drop is accounting. Delta's stakes in other airlines lost value on paper this quarter, where a year ago they gained.

The more important comparison is against what Delta itself promised in July. Three months ago it guided to adjusted earnings of $2.00–2.50 a share and an adjusted operating margin of 11–13% for this quarter. It delivered $1.72 and 9.4%. With this release it also cut its full-year earnings forecast from $6.50–7.50 a share to $5.10–5.60.

At a glance

• Revenue excluding refinery sales: +15.7% ($17.59B vs $15.20B) on flat capacity. This came from higher fares, not more flying. It matches the "mid-teens" growth Delta promised in July, so the shortfall is entirely on the cost side.
• Adjusted fuel price: $3.61 a gallon vs the $3.15 assumed in July. On 1,146 million gallons, that gap works out to about $527 million of extra cost, which is roughly the "more than $500 million" Delta says it absorbed. Fuel alone explains the earnings miss against guidance.
• Full-year EPS guidance cut by about 24% at the midpoint ($7.00 → $5.35), and free-cash-flow guidance cut from $3–4 billion to about $2.5 billion. Delta now plans for fourth-quarter fuel at roughly $4.25 a gallon, higher still.

PRASM is passenger revenue divided by the miles of seat capacity flown, which measures how well Delta fills and prices each seat. CASM-Ex is cost per seat-mile excluding fuel, refinery sales, third-party maintenance work and profit sharing, which shows whether the costs Delta controls are rising. Load factor is the share of seats filled.

Takeaway: Delta's pricing held up. Unit revenue rose 15% and the airline hit its own revenue target. But fuel came in 15% above the price Delta planned on in July, and its own non-fuel costs rose 7.3% per seat-mile on flat capacity. That turned a promised double-digit margin into 9.4% adjusted, and is behind the full-year earnings cut of about $1.65 a share at the midpoint. Rising fares are now just keeping pace with fuel. They aren't covering the rest of the cost growth too.

Where the revenue came from

Passenger revenue rose $2.03 billion (15%) to $15.53 billion, while traffic (paying passenger-miles) grew just 1% and capacity was flat. Nearly all the growth came from price. Revenue per passenger-mile ("yield") rose 14% to 22.80¢. Every ticket category grew:

Premium cabins now bring in slightly more than the main cabin ($6.82 billion vs $6.80 billion). A year ago they trailed by $267 million. Delta says premium growth came on a 6% increase in premium seats while main-cabin seats were cut. Domestic passenger revenue rose 16% on flat capacity with a 1-point higher load factor. Latin America unit revenue jumped 22%, partly because capacity to Mexican leisure markets was cut after civil unrest earlier in the year. Pacific grew 13% on 8% more capacity from new Asian routes, but its load factor slipped 2 points.

The credit-card relationship keeps growing. American Express paid Delta $2.3 billion in the quarter and $6.9 billion year to date (+14%). Delta expects the full year to exceed $9 billion. The filing ties the increase in loyalty revenue to "higher customer spend on American Express cards and new card acquisitions" after the card lineup was refreshed in the June quarter.

The 21% headline revenue growth is inflated by Delta's oil refinery, which sells gasoline and diesel to outside buyers. Those third-party sales jumped 76% to $2.60 billion on higher fuel prices and an end to exchange agreements. A matching $2.60 billion of "refinery expense" sits on the cost side, so these sales add almost nothing to profit. That's why the adjusted revenue figure (+15.7%) is the better measure of the airline.

Where the margin went

Total operating expense rose $3.74 billion (25%), outpacing revenue. Leaving out refinery pass-through sales, the biggest moves were:

• Fuel: +$1.78 billion (+69%) to $4.35 billion. The filing attributes this "primarily" to a 63% increase in Delta's average jet fuel purchase price. Consumption barely changed (1,146 million gallons vs 1,138 million). The GAAP fuel line also includes $416 million of losses on the refinery's fuel hedges (vs a $21 million loss a year ago). In the June quarter those hedges had produced gains. Delta's adjusted figures exclude $208 million of hedge marks and settlements, bringing the adjusted gallon price to $3.61.
• Salaries: +$379 million (+9%) to $4.82 billion. The filing cites 4% base pay increases (pilots from January 1, other eligible employees from June 1), annual step-ups, and "increases in premium pay from operational disruptions."
• Landing fees and rents: +11% as airports raised charges after finishing big redevelopment projects. Contracted services: +10% from Wi-Fi expansion, cargo volume and staffing for new Delta One lounges. Depreciation: +10% from new aircraft.

The airline business alone (Delta's "airline segment") earned $1.49 billion in operating income, down 8.8% from $1.63 billion, on an 8.5% margin versus 10.7%. The refinery had helped offset fuel costs in the June quarter. This time it lost $33 million, compared with a $53 million profit a year ago. Delta blames "volatility in crude pricing" and a temporary outage that halted production from mid-June and cut output through the quarter. The refinery was back at normal production by September 30, and Delta expects it to return to profit in the December quarter.

What the headline numbers hide

• GAAP and adjusted earnings point in opposite directions. GAAP EPS fell 47%. Adjusted EPS rose 1% ($1.72 vs $1.70). The $0.57 gap this quarter comes from two non-cash or timing items. The first is $218 million of mark-to-market losses on equity stakes in other airlines: since year-end China Eastern's carrying value fell from $319 million to $156 million, Wheels Up's from $173 million to $42 million, and LATAM's from $1.64 billion to $1.52 billion. The second is $208 million of hedge marks and settlements, which Delta now pushes into the period when the refinery's inventory is actually sold. A year ago the pattern ran the other way: a $311 million investment gain lifted GAAP pre-tax income ($1.78 billion) above the adjusted figure ($1.48 billion). Adjusted pre-tax income was essentially flat at $1.50 billion. That is the fairer measure of the business, but "flat" is still well short of what Delta guided to.
• The tax rate made GAAP worse. The GAAP effective tax rate was 29.6% ($318 million on $1.07 billion), up from 20.3% a year ago. The adjusted rate was 24.2%, which suggests the investment losses brought little tax relief. Delta projects 23–25% for the year excluding investment marks.
• Cash conversion is healthy. Operating cash flow was $1.71 billion against $756 million of net income in the quarter, and $5.74 billion against $2.07 billion year to date. That's normal for an airline: depreciation is a large non-cash charge, and customers pay for tickets before they fly. Even so, year-to-date operating cash flow is down from $6.08 billion. Free cash flow (cash after capital spending, per Delta's definition) fell to $463 million from $833 million as capital spending rose 22% to $1.41 billion.
• None of the EPS came from buybacks. Diluted shares rose to 659 million from 654 million, and Delta has bought back nothing under its $1.0 billion authorization. The one financial helper is interest: net interest expense fell $25 million to $146 million after $3.3 billion of debt repayments this year. Total debt and finance leases are down to $12.85 billion from $14.88 billion a year ago.
• Profit sharing is no longer cushioning the fall. In the June quarter, lower profit-sharing accruals absorbed part of the profit decline. This quarter profit sharing was flat ($389 million vs $392 million), so it offered no help.

Did last quarter's read hold up?

Our Q2 analysis named non-fuel unit cost growth (6.8% then) as the number to watch, and said the September quarter was "when summer pricing power, not fuel, has to do the proving." Pricing held up. Yield rose 14% and PRASM 15%, both faster than in Q2. Costs did not. CASM-Ex growth accelerated to 7.3%, which Delta attributes to crew and revenue-related costs, capacity "several points below our original plan," and about a point from summer storms. We also flagged the refinery's June outage as a reason not to count on its $351 million Q2 profit. It did turn into a loss. Fuel eased somewhat from Q2 ($3.93 to $3.61 adjusted) but stayed far above Delta's July planning price.

Guidance and what to watch

Delta's updated outlook (from its October 9 earnings release, Exhibit 99.1):

Delta frames the year as roughly $4.5 billion of pre-tax profit after absorbing about $6 billion of higher fuel cost. It expects December-quarter non-fuel unit cost growth to improve by 1–2 points from Q3's 7.3%, and "low-single-digit" growth in 2027. In July Delta had described the full-year target as 20% earnings growth. Neither the release nor the 10-Q repeats that figure. For reference, Delta's own reconciliation puts last year's December-quarter adjusted EPS at $1.55, so the new Q4 range runs from about 26% below last year to 6% above.

Our view. Revenue is not the problem. Delta hit its revenue target in a quarter with flat capacity, and it is guiding to 20% revenue growth in Q4 with seats up less than 2%. That is real pricing power, and the Amex stream ($9 billion+ a year) gives it a cushion most airlines lack. The weakness is that the guidance depends on fuel, and fuel keeps landing above plan. Q4 assumes $4.25 a gallon, and the company says high prices will last "until market disruptions and geopolitical events are resolved." The Q4 assumption also includes about $0.40 a gallon of refinery benefit, three times the 13¢ it delivered in Q3, from a plant that just came back from an outage. If the refinery underdelivers or fuel moves higher again, the low end of the $1.15–1.65 range is the realistic case. Two numbers will show whether the 2027 recovery story holds: CASM-Ex coming back toward the 5–6% range in Q4, and whether the refinery actually earns the $0.40.

Source: Delta Air Lines Form 10-Q for the quarter ended September 30, 2026 (filed October 9, 2026). Guidance and adjusted (non-GAAP) figures are from Delta's October 9, 2026 and July 10, 2026 earnings releases (Form 8-K, Exhibit 99.1).