Delta Air Lines (DAL)
Operates a global hub airline built around premium travel, loyalty, cargo, and partnerships.
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Delta is mostly an airline selling seats, but the mix is shifting from the main cabin toward roomier premium travel. A large rewards partnership brings in money beyond tickets, while a fuel refinery and a growing aircraft-repair shop give the company a few other ways to earn and protect itself.
Item facts: FY2025 · year ended Dec 31, 2025, from filings, earnings calls and company pages.
Judgment weights, not filed revenue
The band summarizes business focus and direction. ~ marks estimates.
7 in detail · 11 more below
Premium Products
Roomier cabins produced $22.1 billion in FY2025 revenue. They grew and overtook Main Cabin in the second quarter of 2026; watch whether Delta can keep filling the extra premium seats it is adding.
Competes with United Polaris and Premium Plus (United Airlines) · Flagship Business, First and Premium Economy (American Airlines)
In plain English
This is the roomier half of the airplane: Delta One, First Class, Delta Premium Select and Delta Comfort+. Travelers pay more for space, comfort and a better airport experience, much as a hotel charges more for a larger room.
Delta earns the higher fare each time a business traveler or higher-spending vacationer chooses one of those seats. More premium-heavy aircraft put more of them on sale, but the economics still depend on customers valuing the upgrade enough to pay the gap and on Delta running a reliable trip.
Main Cabin
Standard economy flying brought in $23.4 billion in FY2025. It shrank that year, then rebounded in the second quarter of 2026 after fare increases and fewer low-priced seats; Delta is not planning near-term growth here.
Competes with Main Cabin and Basic Economy (American Airlines) · United Economy and Basic Economy (United Airlines)
In plain English
Most passengers know this product already: a seat from one airport to another, priced differently depending on the route, travel date, ticket rules and how late someone books. Like concert seats, the same physical place can sell for very different prices as the date approaches.
Leisure and business travelers pay the fare, either directly or through a travel agency. Once the plane is scheduled, an empty seat disappears forever at takeoff, so Delta must balance filling the cabin against holding enough seats for people willing to pay more later.
SkyMiles and Delta SkyMiles American Express Cards
American Express paid Delta $8.2 billion in FY2025, the only named partner whose payments exceeded a tenth of Delta's revenue. Watch card spending and how much promised travel members claim later.
Competes with MileagePlus and United Chase Cards (United Airlines and JPMorgan Chase) · AAdvantage and Citi/AAdvantage Cards (American Airlines and Citi)
In plain English
SkyMiles is a repeat-customer club with a powerful payment-card partner. Members collect miles from flying or spending, then trade them for trips and upgrades; American Express pays Delta for the miles and for benefits attached to Delta-branded cards.
Picture a shop selling gift vouchers today and honoring them later. Cash arrives from the card partnership regularly, but part of what Delta owes is a future seat. The business works best when people keep spending, value the rewards and can find flights they want without Delta giving away too many valuable seats.
Monroe Energy / Trainer Refinery
Outside customers bought $5.1 billion of refinery products in FY2025. Its deeper job is to trade other fuels for jet fuel and soften sudden cost jumps; sales surged in the second quarter of 2026, but profits swing with fuel markets and whether the plant keeps running.
Competes with Delaware City Refinery (PBF Energy) · Bayway Refinery (Phillips 66)
In plain English
An airline owning an oil refinery is unusual, but the purpose is practical. The Trainer plant turns crude oil into several fuels, then sells or swaps the products Delta does not need to obtain jet fuel for its aircraft.
It works like a bakery that needs bread but produces a whole display case: sell the cakes and pastries, then use the proceeds to secure the staple. Other fuel buyers provide the outside sales. The payoff can change sharply with crude prices, refinery shutdowns, government-required cleaner-fuel credits and the gap between crude and finished-fuel prices.
Travel-related services
Bags, ticket changes and onboard purchases added $2.0 billion in FY2025 revenue. Growth accelerated in the second quarter of 2026; watch passenger volume, fee rules and how often travelers buy an extra.
Competes with Main Cabin Extra and bag services (American Airlines) · Economy Plus and bag services (United Airlines)
In plain English
The ticket gets a traveler onto the plane; this is what they buy around it. Checked bags, ticket-change charges and onboard purchases each add a relatively small amount to a trip.
Think of the extras beside a cinema ticket: no single popcorn sale makes the business, but millions of visits make the counter meaningful. Ticketed passengers pay through the app, kiosks, agents or crews, and Delta earns more when more people travel or choose another paid convenience. Rules limiting fees and poor operations can quickly change what customers buy or accept.
Delta Cargo
Freight carried beneath passenger seats made $900 million in FY2025 revenue. Growth surged from a small base in the second quarter of 2026 as volumes and trade routes shifted; watch large international aircraft schedules and global goods flows.
Competes with United Cargo products (United Airlines) · American Airlines Cargo (American Airlines)
In plain English
Under the passengers and their suitcases is spare room that Delta sells to companies moving goods. Ordinary boxes, urgent parcels and temperature-sensitive products such as medicines or food can ride in that lower deck.
The clever part is that the passenger flight was already going. Freight companies and shippers pay to use the leftover space, while partner airlines and trucks help a box reach places Delta cannot serve alone. Revenue rises when international aircraft have room and trade lanes are busy; security rules, schedule changes and crowded baggage holds can restrict it.
Delta TechOps third-party maintenance
Repairing other airlines' aircraft and engines produced $822 million in FY2025 revenue. The business is growing quickly, helped by long UPS and IndiGo contracts; workshop space, skilled labor and parts set the pace.
Competes with Engine Services (StandardAero) · CFM56-5B Engine Services (Lufthansa Technik)
In plain English
The unglamorous workshop is becoming a business of its own. Delta already maintains its fleet, and TechOps sells the same engine, component and aircraft repair skills to outside customers such as UPS, IndiGo, Korean Air and Jet2.
Customers pay when equipment enters the shop for inspection, repair or overhaul, rather like a commercial garage serving delivery fleets instead of family cars. Multi-year contracts make the work easier to plan. Growth still depends on enough trained technicians, permission from engine makers, replacement parts and service bays to return each aircraft on time.
Premium ProductsRoomier cabins produced $22.1 billion in FY2025 revenue. They grew and overtook Main Cabin in the second quarter of 2026; watch whether Delta can keep filling the extra premium seats it is adding.Roomier cabins produced $22.1 billion in FY2025 revenue. They grew and overtook Main Cabin in the second quarter of 2026; watch whether Delta can keep filling the extra premium seats it is adding.
In plain English
This is the roomier half of the airplane: Delta One, First Class, Delta Premium Select and Delta Comfort+. Travelers pay more for space, comfort and a better airport experience, much as a hotel charges more for a larger room.
Delta earns the higher fare each time a business traveler or higher-spending vacationer chooses one of those seats. More premium-heavy aircraft put more of them on sale, but the economics still depend on customers valuing the upgrade enough to pay the gap and on Delta running a reliable trip.
Competes with United Polaris and Premium Plus (United Airlines) · Flagship Business, First and Premium Economy (American Airlines)
Main CabinStandard economy flying brought in $23.4 billion in FY2025. It shrank that year, then rebounded in the second quarter of 2026 after fare increases and fewer low-priced seats; Delta is not planning near-term growth here.Standard economy flying brought in $23.4 billion in FY2025. It shrank that year, then rebounded in the second quarter of 2026 after fare increases and fewer low-priced seats; Delta is not planning near-term growth here.
In plain English
Most passengers know this product already: a seat from one airport to another, priced differently depending on the route, travel date, ticket rules and how late someone books. Like concert seats, the same physical place can sell for very different prices as the date approaches.
Leisure and business travelers pay the fare, either directly or through a travel agency. Once the plane is scheduled, an empty seat disappears forever at takeoff, so Delta must balance filling the cabin against holding enough seats for people willing to pay more later.
Competes with Main Cabin and Basic Economy (American Airlines) · United Economy and Basic Economy (United Airlines)
SkyMiles and Delta SkyMiles American Express CardsAmerican Express paid Delta $8.2 billion in FY2025, the only named partner whose payments exceeded a tenth of Delta's revenue. Watch card spending and how much promised travel members claim later.American Express paid Delta $8.2 billion in FY2025, the only named partner whose payments exceeded a tenth of Delta's revenue. Watch card spending and how much promised travel members claim later.
In plain English
SkyMiles is a repeat-customer club with a powerful payment-card partner. Members collect miles from flying or spending, then trade them for trips and upgrades; American Express pays Delta for the miles and for benefits attached to Delta-branded cards.
Picture a shop selling gift vouchers today and honoring them later. Cash arrives from the card partnership regularly, but part of what Delta owes is a future seat. The business works best when people keep spending, value the rewards and can find flights they want without Delta giving away too many valuable seats.
Competes with MileagePlus and United Chase Cards (United Airlines and JPMorgan Chase) · AAdvantage and Citi/AAdvantage Cards (American Airlines and Citi)
Monroe Energy / Trainer RefineryOutside customers bought $5.1 billion of refinery products in FY2025. Its deeper job is to trade other fuels for jet fuel and soften sudden cost jumps; sales surged in the second quarter of 2026, but profits swing with fuel markets and whether the plant keeps running.Outside customers bought $5.1 billion of refinery products in FY2025. Its deeper job is to trade other fuels for jet fuel and soften sudden cost jumps; sales surged in the second quarter of 2026, but profits swing with fuel markets and whether the plant keeps running.
In plain English
An airline owning an oil refinery is unusual, but the purpose is practical. The Trainer plant turns crude oil into several fuels, then sells or swaps the products Delta does not need to obtain jet fuel for its aircraft.
It works like a bakery that needs bread but produces a whole display case: sell the cakes and pastries, then use the proceeds to secure the staple. Other fuel buyers provide the outside sales. The payoff can change sharply with crude prices, refinery shutdowns, government-required cleaner-fuel credits and the gap between crude and finished-fuel prices.
Competes with Delaware City Refinery (PBF Energy) · Bayway Refinery (Phillips 66)
Travel-related servicesBags, ticket changes and onboard purchases added $2.0 billion in FY2025 revenue. Growth accelerated in the second quarter of 2026; watch passenger volume, fee rules and how often travelers buy an extra.Bags, ticket changes and onboard purchases added $2.0 billion in FY2025 revenue. Growth accelerated in the second quarter of 2026; watch passenger volume, fee rules and how often travelers buy an extra.
In plain English
The ticket gets a traveler onto the plane; this is what they buy around it. Checked bags, ticket-change charges and onboard purchases each add a relatively small amount to a trip.
Think of the extras beside a cinema ticket: no single popcorn sale makes the business, but millions of visits make the counter meaningful. Ticketed passengers pay through the app, kiosks, agents or crews, and Delta earns more when more people travel or choose another paid convenience. Rules limiting fees and poor operations can quickly change what customers buy or accept.
Competes with Main Cabin Extra and bag services (American Airlines) · Economy Plus and bag services (United Airlines)
Delta CargoFreight carried beneath passenger seats made $900 million in FY2025 revenue. Growth surged from a small base in the second quarter of 2026 as volumes and trade routes shifted; watch large international aircraft schedules and global goods flows.Freight carried beneath passenger seats made $900 million in FY2025 revenue. Growth surged from a small base in the second quarter of 2026 as volumes and trade routes shifted; watch large international aircraft schedules and global goods flows.
In plain English
Under the passengers and their suitcases is spare room that Delta sells to companies moving goods. Ordinary boxes, urgent parcels and temperature-sensitive products such as medicines or food can ride in that lower deck.
The clever part is that the passenger flight was already going. Freight companies and shippers pay to use the leftover space, while partner airlines and trucks help a box reach places Delta cannot serve alone. Revenue rises when international aircraft have room and trade lanes are busy; security rules, schedule changes and crowded baggage holds can restrict it.
Competes with United Cargo products (United Airlines) · American Airlines Cargo (American Airlines)
Delta TechOps third-party maintenanceRepairing other airlines' aircraft and engines produced $822 million in FY2025 revenue. The business is growing quickly, helped by long UPS and IndiGo contracts; workshop space, skilled labor and parts set the pace.Repairing other airlines' aircraft and engines produced $822 million in FY2025 revenue. The business is growing quickly, helped by long UPS and IndiGo contracts; workshop space, skilled labor and parts set the pace.
In plain English
The unglamorous workshop is becoming a business of its own. Delta already maintains its fleet, and TechOps sells the same engine, component and aircraft repair skills to outside customers such as UPS, IndiGo, Korean Air and Jet2.
Customers pay when equipment enters the shop for inspection, repair or overhaul, rather like a commercial garage serving delivery fleets instead of family cars. Multi-year contracts make the work easier to plan. Growth still depends on enough trained technicians, permission from engine makers, replacement parts and service bays to return each aircraft on time.
Competes with Engine Services (StandardAero) · CFM56-5B Engine Services (Lufthansa Technik)
Named in filings, launches and programs
- International airline partnershipsEcosystemPartner airlines coordinate schedules and sell connected international trips, extending Delta's reach beyond its own aircraft.
- Delta Connection and Endeavor AirEcosystemEndeavor, Republic and SkyWest feed smaller-city passengers into Delta's network under schedules and prices controlled by Delta.
- Delta VacationsBrandPackages flights with vacation purchases, adding travel revenue beyond the seat itself.
- Delta Sky Club and Delta One LoungeServiceAirport lounges earn through paid entry, traveler status and card-linked access.
- Fly Delta, Delta Sync and Delta ConciergePlatform · RampingBooking, personalized entertainment and an automated travel helper keep more of the journey inside Delta's digital services.
- Delta Stays, Delta Cars and Delta CruisesEcosystemHotel, rental-car and cruise offers bring commissions and give travelers more ways to earn miles.
- WestJet minority investmentEcosystemA roughly thirteen-percent holding supports a broader airline partnership and connecting travel.
- Aeroméxico partnershipEcosystemShared flight listings, marketing and rewards connect the two airlines, and Delta owns nineteen percent of Aeroméxico.
- SkyTeamEcosystemAn airline alliance adds connected flights, shared rewards, lounges and cargo links across partner networks.
- Wheels Up investmentEcosystemA large minority holding and loan connect Delta to private aviation without folding that company into Delta's own operations.
- Unifi Aviation investmentBrandDelta retains a twenty-percent stake in this airport-services business after selling most of its former holding.
International airline partnershipsEcosystem
Partner airlines coordinate schedules and sell connected international trips, extending Delta's reach beyond its own aircraft.
Delta Connection and Endeavor AirEcosystem
Endeavor, Republic and SkyWest feed smaller-city passengers into Delta's network under schedules and prices controlled by Delta.
Delta VacationsBrand
Packages flights with vacation purchases, adding travel revenue beyond the seat itself.
Delta Sky Club and Delta One LoungeService
Airport lounges earn through paid entry, traveler status and card-linked access.
Fly Delta, Delta Sync and Delta ConciergePlatform · Ramping
Booking, personalized entertainment and an automated travel helper keep more of the journey inside Delta's digital services.
Delta Stays, Delta Cars and Delta CruisesEcosystem
Hotel, rental-car and cruise offers bring commissions and give travelers more ways to earn miles.
WestJet minority investmentEcosystem
A roughly thirteen-percent holding supports a broader airline partnership and connecting travel.
Aeroméxico partnershipEcosystem
Shared flight listings, marketing and rewards connect the two airlines, and Delta owns nineteen percent of Aeroméxico.
SkyTeamEcosystem
An airline alliance adds connected flights, shared rewards, lounges and cargo links across partner networks.
Wheels Up investmentEcosystem
A large minority holding and loan connect Delta to private aviation without folding that company into Delta's own operations.
Unifi Aviation investmentBrand
Delta retains a twenty-percent stake in this airport-services business after selling most of its former holding.