Delta Air Lines is the Atlanta-based SkyTeam carrier with nine US hubs, and British Airways is the UK flag carrier and a oneworld member based at London Heathrow. Travellers compare them mainly for transatlantic trips between the US and London, where both sell full-service long-haul cabins.
Quick verdict
Both are full-service airlines, so the choice usually comes down to where you start and which loyalty programme you use. Delta suits travellers who need US domestic connections, a wide range of cabins and SkyMiles, whose miles do not expire. British Airways suits those who want Heathrow as a hub, plus Avios and oneworld partners. Check the fare rules on either airline, because baggage and seat options vary by ticket.
Choose Delta Air Lines if…
- You are connecting within the US: Delta has nine hubs, including Atlanta, New York JFK, Boston and Seattle.
- You want a premium economy option (Premium Select) or Comfort+ with 34–36 in of pitch.
- You collect SkyMiles, whose miles do not expire, or you want Sky Club access through status or an international Delta One ticket.
Choose British Airways if…
- You are starting or connecting in London: Heathrow is the main hub and Gatwick the second.
- You want a standard 23 kg checked bag on most economy fares (not Economy Basic), with 2 x 23 kg in Premium Economy and Business.
- You collect Avios or want oneworld connections, with the Concorde Room at Heathrow T5 for First passengers.
At a glance
Search your flight
Key differences
Network and hubs
Delta runs nine hubs: Atlanta (its largest), Boston, Detroit, Los Angeles, Minneapolis/St. Paul, New York JFK, New York LaGuardia, Salt Lake City and Seattle/Tacoma. It flies to 64 countries as of April 2026 (Wikipedia). British Airways is built around London Heathrow, mostly Terminal 5, with Gatwick as its second hub (Wikipedia). For a US–UK trip, Delta tends to win on onward US connections and BA on onward connections from London.
Cabins and seats
Delta offers Delta One (lie-flat), First, Premium Select, Comfort+, Main Cabin and Basic Economy, depending on route and aircraft. Main Cabin pitch is 30–33 in and Comfort+ is 34–36 in. British Airways long-haul has First, Club World, World Traveller Plus and World Traveller. Its Club Suite has a door and was introduced on the A350 in 2019, and its First suites have a 6 ft 6 in bed (Wikipedia). Short-haul, BA uses Club Europe and Euro Traveller.
Baggage and fares
On BA, Economy Basic is hand baggage only and hold bags are charged. Other economy fares generally include one 23 kg bag, and Premium Economy and Business include two (British Airways). Delta's allowance depends on fare, route and status, so check delta.com. Delta's Basic Economy cannot be changed or upgraded, and it earns no miles or Medallion qualifying miles.
Food and entertainment
Delta serves free snacks and soft drinks in Main Cabin on flights of 250 miles or more, and free meals on long-haul international routes. Delta Studio entertainment is on many aircraft, and SkyMiles members get free Wi-Fi on most domestic flights. BA includes meals in premium cabins and complimentary catering in Club Europe, while short-haul economy food and drink is sold on board. Long-haul BA aircraft have seatback screens, and Wi-Fi is being rolled out across the fleet.
Punctuality and reliability
Cirium figures cited by Wikipedia put Delta at 84.72% on time in 2023. Wikipedia also says Delta's domestic cancellation rate was above the industry average in 2026, with pilot availability cited as a factor. BA recorded 86.89% on time in February 2025, fourth among global airlines that month (Head for Points). The periods differ, so the figures are not directly comparable.
Loyalty, lounges and alliances
Delta is a founding SkyTeam member and holds stakes in Virgin Atlantic (49%), LATAM and Aeroméxico. Sky Club access comes through membership, top-tier status, certain American Express cards or international Delta One tickets, and day passes ended in 2019. BA is in oneworld and uses Avios, with upgrades possible through Avios. Premium passengers get business lounges, and First passengers at Heathrow T5 can use the Concorde Room.
Frequently asked questions
Is Delta better than British Airways?
Neither is better for everyone. Both are full-service airlines: Delta is stronger for US domestic connections and SkyMiles, while British Airways is stronger for London connections, Avios and oneworld.
Does British Airways include checked baggage?
Not on Economy Basic, which is hand baggage only. Other economy fares generally include one 23 kg bag, and Premium Economy and Business include two.
Which has more legroom in economy?
Delta lists 30–33 in in Main Cabin and 34–36 in in Comfort+, and the figure varies by aircraft. For British Airways, check the seat map for your flight.
About Delta Air Lines Read more
Overview
Delta Air Lines is a major US carrier headquartered in Atlanta, Georgia. According to Wikipedia, it was founded in December 1928 as Delta Air Service and began passenger operations on 17 June 1929. It is a founding member of the SkyTeam alliance and is listed on the New York Stock Exchange. It reported revenue of US$63.4 billion for 2025 and about 103,000 employees.
Network and hubs
Delta operates nine hubs: Atlanta (its largest), Boston, Detroit, Los Angeles, Minneapolis/St. Paul, New York JFK, New York LaGuardia, Salt Lake City and Seattle/Tacoma. As of April 2026, Wikipedia says it flies to 64 countries on more than 1,000 routes across the Americas, Europe, Africa, West and East Asia and Oceania. Regional services under the Delta Connection brand are flown by Endeavor Air, Republic Airways and SkyWest. Delta holds stakes in partners including Virgin Atlantic (49%), LATAM and Aeroméxico, and codeshares with many SkyTeam and other airlines.
Fleet
Wikipedia, citing Delta's 2025 Form 10-K, gives a mainline fleet of 987 aircraft, with an average age of 14.8 years at December 2024. Delta operates the world's largest passenger fleets of the Airbus A220, Boeing 717, 757, 767 and Airbus A330. Wide-bodies (A330, A350, Boeing 767) serve long-haul routes. Delta's Form 10-Q for March 2026 has a detailed fleet table.
On board
Cabins vary by route and aircraft:
- Delta One: lie-flat business class on long-haul and some transcontinental flights, with meals, an amenity kit and bedding.
- First: on domestic and some short- and medium-haul international flights, with 37–40 in of pitch.
- Premium Select: premium economy on many long-haul aircraft.
- Delta Comfort+: 34–36 in of pitch, priority boarding and complimentary drinks on flights of 250 miles or more.
- Main Cabin: 30–33 in of pitch, with free snacks and soft drinks on flights of 250 miles or more. Meals are free on long-haul international routes and sold on some other flights of 900 miles or more.
- Basic Economy: same service with fewer flexibility options, no ticket changes and seats assigned at check-in.
Delta Studio entertainment is available on many aircraft. Wikipedia reports free Wi-Fi for SkyMiles members on most domestic flights from 2025.
Good to know
- Baggage allowances and fees depend on fare, route and status. Check the Delta website before travelling.
- Basic Economy fares do not earn miles or Medallion qualifying miles (since December 2021) and cannot be upgraded.
- Delta Sky Club lounge access comes through membership, top-tier status, certain American Express cards or international Delta One tickets. Day passes ended in January 2019.
- The SkyMiles loyalty programme says miles do not expire.
- Punctuality: Cirium data cited by Wikipedia put Delta at 84.72% on time in 2023. Wikipedia also notes Delta's domestic cancellation rate exceeded the industry average in 2026, with pilot availability cited as a factor.
About British Airways Read more
Overview
British Airways (BA) is the flag carrier of the United Kingdom, formed on 31 March 1974 from the merger of BOAC and BEA and their associated airlines. It has been part of International Airlines Group (IAG) since the January 2011 merger with Iberia. It is a member of the oneworld alliance and is headquartered at the Waterside building beside Heathrow Airport. Wikipedia describes it as the second-largest UK-based carrier by fleet size and passengers, behind easyJet.
Network and hubs
The main hub is London Heathrow, where most flights use Terminal 5 and some use Terminal 3. London Gatwick is the second hub. Wikipedia lists about 215 destinations. Subsidiaries BA CityFlyer (London City) and BA Euroflyer (Gatwick) operate short-haul services under BA branding and flight numbers.
Fleet
According to Simple Flying, citing ch-aviation (2026), BA has 297 aircraft. The widebody fleet is 18 Airbus A350-1000, 12 A380, 59 Boeing 777 and 42 Boeing 787. The narrowbody fleet is Airbus A320-family aircraft. Wikipedia gave 274 aircraft with 42 on order as of February 2025, so counts vary by source and date. BA retired its Boeing 747-400s in October 2020.
On board
- Long-haul: First, Club World (business), World Traveller Plus (premium economy) and World Traveller (economy).
- Short-haul: Club Europe (business) and Euro Traveller (economy).
- Club Suite, with a door, was introduced on the A350 in 2019. First suites have a 6 ft 6 in bed.
- Wi-Fi is being rolled out across the fleet. Complimentary access is offered in First on select aircraft.
Good to know
- Baggage: Economy Basic fares are hand baggage only, and hold bags are charged. Other economy fares generally include one 23 kg bag, according to third-party summaries. Check the airline's website for your fare.
- Punctuality: 86.89% on time in February 2025 (Cirium), which placed BA fourth among global airlines that month.
- Lounges: Club Europe and premium cabins give access to business lounges at most airports. First passengers at Heathrow T5 can use the Concorde Room.
- Loyalty: The British Airways Club, part of the Avios programme.
Sources (5)
Ranking
Related airline comparisons
Compare the airlines
Compare two airlines side-by-side to see the real difference
We use cookies to keep the site working, understand how it is used, and show relevant content and ads. Choose Accept all to allow them, or Reject all to keep only the cookies the site needs. Read more in our Privacy Policy.