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Delta Air Lines · 2025 report · 12 min

How Delta is organized

Every plane says Delta. Behind the logo are a refinery with its own board, three regional airlines, stakes in seven partner airlines or their parents, and a miles program set up as companies of its own. Here's how it fits together.

FUELFLIGHTS
Ticket 01 · The guess

Whose plane is it?

Delta Air Lines flew 1,314 planessec.gov ·2025 at the end of 2025, every one painted with the Delta name. Some of them, mostly smaller jets serving smaller cities, are flown for Delta by other airlines. How many do you think?

100 planes
0 planes700
Words to know

Spot something wrong?

Tell us what looks off. No name or email needed.

What kind of problem?

0 / 1000

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Sources and every number (1)

Sources

  • Delta Air Lines, Inc. Form 10-K for the fiscal year ended December 31, 2025 · Delta Air Lines, Inc. (filed with the U.S. SEC), 2025

Every number

  • 1,314 planessec.gov ·2025 · Aircraft in Delta's fleet at the end of 2025, regional aircraft included (Item 1).
  • 325 planessec.gov ·2025 · Aircraft operated for Delta by regional airlines at the end of 2025 (Item 2, regional aircraft table).
  • 144 planessec.gov ·2025 · Aircraft operated for Delta by Endeavor Air at the end of 2025 (Item 2, regional aircraft table).
  • 124 planessec.gov ·2025 · Aircraft operated for Delta by SkyWest Airlines at the end of 2025 (Item 2, regional aircraft table).
  • 57 planessec.gov ·2025 · Aircraft operated for Delta by Republic Airways at the end of 2025 (Item 2, regional aircraft table).
  • 24.7%sec.gov ·2025 · Worked out: aircraft operated by regional airlines divided by Delta's whole fleet, end of 2025 (Item 1 and Item 2).
  • $2.6Bsec.gov ·2025 · Regional carrier expense: the cost of the flights regional airlines (Endeavor included) fly for Delta, 2025 (income statement).
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Skip to the lesson
Back to the home page and map, from TryOwning · Delta Air Lines · Lesson 2
Part 1 of 3Part 1 of 3, 0 done

Delta Air Lines · 2025 report · 12 min

How Delta is organized

Every plane says Delta. Behind the logo are a refinery with its own board, three regional airlines, stakes in seven partner airlines or their parents, and a miles program set up as companies of its own. Here's how it fits together.

FUELFLIGHTS
Ticket 01 · The guess

Whose plane is it?

Delta Air Lines flew 1,314 planessec.gov ·2025 at the end of 2025, every one painted with the Delta name. Some of them, mostly smaller jets serving smaller cities, are flown for Delta by other airlines. How many do you think?

100 planes
0 planes700
Words to know

Spot something wrong?

Tell us what looks off. No name or email needed.

What kind of problem?

0 / 1000

We'll also send this page, the lesson, ticket 1, so we can find it. Nothing else. Privacy

·
Sources and every number (1)

Sources

  • Delta Air Lines, Inc. Form 10-K for the fiscal year ended December 31, 2025 · Delta Air Lines, Inc. (filed with the U.S. SEC), 2025

Every number

  • 1,314 planessec.gov ·2025 · Aircraft in Delta's fleet at the end of 2025, regional aircraft included (Item 1).
  • 325 planessec.gov ·2025 · Aircraft operated for Delta by regional airlines at the end of 2025 (Item 2, regional aircraft table).
  • 144 planessec.gov ·2025 · Aircraft operated for Delta by Endeavor Air at the end of 2025 (Item 2, regional aircraft table).
  • 124 planessec.gov ·2025 · Aircraft operated for Delta by SkyWest Airlines at the end of 2025 (Item 2, regional aircraft table).
  • 57 planessec.gov ·2025 · Aircraft operated for Delta by Republic Airways at the end of 2025 (Item 2, regional aircraft table).
  • 24.7%sec.gov ·2025 · Worked out: aircraft operated by regional airlines divided by Delta's whole fleet, end of 2025 (Item 1 and Item 2).
  • $2.6Bsec.gov ·2025 · Regional carrier expense: the cost of the flights regional airlines (Endeavor included) fly for Delta, 2025 (income statement).
  1. Lessons›
  2. Big companies›
  3. Airlines
  • ·Before this: How airlines make money
  • ·Next: Why ticket prices change
  • ·Free guide: How airlines make money