TenQ

The Delta Air Lines story

Delta Air Lines is a global airline built around premium travel and SkyMiles loyalty, with the central question of whether those businesses can sustain earnings growth despite higher fuel and operating costs.

Written from Delta Air Lines's own filings with the SEC, and rewritten when it publishes a new earnings release. Updated 2026-09-30.

  • $84.03share price, last close
  • $55.3Bmarket value
  • 20/36TenQ Score checks passed
  • 4.2%growth a year the price assumes

The story in brief

  • Demand outpaced capacity. In the quarter to June 2026, adjusted operating revenue grew 14 percent to $17.7 billion on approximately 1 percent capacity growth.
  • Premium broadens the business. Premium revenue grew 17 percent in the quarter to June 2026, while premium and other diverse revenue streams accounted for 61 percent of total revenue.
  • Debt reduction continues. Adjusted net debt reached $13.6 billion at the end of June 2026, a reduction of $709 million from the end of 2025.

What drives the business

  • Delta's American Express credit card partnership ties loyalty income to spending beyond flights, generating $8.2 billion in remuneration in 2025 and $2.4 billion in the quarter to June 2026, up 16 percent from a year earlier.
  • Its domestic hubs feed a global network extended by joint ventures with Air France, KLM, Virgin Atlantic, LATAM and Korean Air, supporting premium cabins and international connections.
  • Delta is expanding premium seating through fleet renewal and cabin upgrades, with its January 2026 Airbus agreement covering 16 A330-900 aircraft and 15 A350-900 aircraft, with deliveries beginning in 2029.
  • Delta TechOps adds maintenance revenue through engine manufacturer agreements and customer relationships including IndiGo and LATAM, while maintenance revenue grew 32 percent and cargo revenue grew 39 percent in the quarter to June 2026.
  • The owned Trainer refinery supports fuel supply to Delta's northeastern operations and is intended to reduce exposure to refining margins, though most aircraft fuel contracts remain linked to market prices.

What the price assumes

At $84.03, the reverse DCF implies free cash flow after stock pay grows 4.2% a year for ten years, using a 10.2% discount rate.

That compares with delivered growth of -2.7% a year over the last 10 years and the TenQ check's 0.7% bar, so the implied growth exceeds both the historical record and the check's benchmark.

Over the last twelve months, Delta generated $3.7 billion in free cash flow before $313 million in stock-based pay, with a free cash flow yield of 6.6%.

Value DAL on your own assumptions

What could change the story

  • Revenue strength did not prevent cost pressure in the quarter to June 2026, when adjusted fuel expense rose 77 percent to $4.4 billion and non-fuel unit costs increased 6.8 percent.
  • Profit growth over the last twelve months was -11.9% despite revenue growth of 10.3%, leaving the conversion of stronger demand into earnings an unresolved issue.
  • Delta fails TenQ's near-term liquidity check at 0.42 against 1.50, although liquidity at the end of June 2026 included $3.1 billion in undrawn revolving credit capacity.
  • The Aeroméxico cooperation agreement faces regulatory uncertainty after the Department of Transportation ordered its antitrust immunity terminated, with a court stay allowing operations to continue pending judicial review.

What to watch next

  • For the quarter to September 2026, Delta expects revenue growth in the mid-teens, an operating margin of 11 to 13 percent and earnings per share of $2.00 to $2.50, assuming fuel at approximately $3.15 per gallon.
  • Premium revenue, American Express remuneration and non-fuel unit costs will show whether demand strength and management's expected cost improvement translate into stronger margins.
  • Delta affirmed full-year 2026 adjusted earnings per share guidance of $6.50 to $7.50 and free cash flow of $3 to $4 billion, after generating $1.4 billion in free cash flow in the first half of 2026.
  • Debt payments and cash generation will also show progress toward management's expected gross leverage of approximately 2x by the end of 2026.

Sources

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