Around 90 airlines operate at John F. Kennedy International Airport (JFK), making it one of the most connected airports in the world and the USA's leading international gateway. This guide lists the main airlines flying to and from JFK, the terminal each is based in, and practical tips for check-in — so you know exactly where to go before you travel.

Airlines at JFK by terminal

Your terminal depends on your airline, so always check your booking. The main groupings are:

All terminals are linked by the free AirTrain, so if you arrive at the wrong one you can move between them at no charge. See our JFK terminals guide for maps and facilities.

Domestic vs international airlines

For domestic travel, JetBlue, Delta and American carry the most passengers, with heavy schedules to Los Angeles, San Francisco, Miami and other major U.S. cities. For international travel, JFK is served by flag carriers and global airlines across Europe, the Middle East, Asia, Africa and Latin America — see our flights to and from JFK guide for routes.

Alliances at JFK

All three major airline alliances are represented: SkyTeam around Delta at Terminal 4, Oneworld around American and British Airways at Terminal 8, and Star Alliance members such as Lufthansa at Terminal 1. Loyalty status can give you lounge access and priority services on partner airlines.

Check-in tips

Frequently asked questions

How many airlines operate at JFK?

Around 90 airlines operate at JFK across its five terminals, covering domestic routes and international destinations on every continent, which makes it the busiest international gateway in the United States.

Which terminal is my airline at JFK?

Delta and many international carriers use Terminal 4, JetBlue uses Terminal 5, American and Oneworld partners (including British Airways) use Terminal 8, and other international airlines use Terminals 1 and 7. Always confirm on your booking, as assignments change during the airport's redevelopment.

Which airlines are the biggest at JFK?

JetBlue (Terminal 5), Delta (Terminal 4) and American (Terminal 8) are the largest carriers by flights, alongside major international airlines such as British Airways, Emirates, Air France, KLM and Lufthansa.

Can I connect between airlines at JFK?

Yes, but JFK terminals are not linked airside, so you use the free AirTrain to change terminals. International-to-domestic connections must clear customs, re-check bags and pass security again, so allow at least two to three hours.

Do domestic and international flights use the same terminal?

Not always — it depends on the airline. Terminal 4 handles both Delta domestic and many international flights, while Terminal 5 is mostly JetBlue domestic and Terminal 8 mixes American domestic and international services.