What Terminal Is Delta at JFK? Terminal 4 Gates, Check-In, and Connections

I worked Delta gates in Atlanta for twelve years, and the question I still get asked most about flying Delta through New York is the simplest one people have: which terminal? So let me answer it before you scroll.

The quick answer: Delta flies out of Terminal 4

At JFK, Delta operates out of Terminal 4. Check-in, security, your departure gate, and baggage claim are all in that one building — Delta spells it out on its own JFK airport map, and for once the marketing page and the reality line up.

Here is the one catch that trips people up. Some flights sold as Delta are actually flown by a partner airline, and three of those partners — Air France, China Eastern, and Korean Air — sit over in Terminal 1, not T4. Same ticket, different building. So check the operating carrier printed on your boarding pass, not the Delta logo on your confirmation email. If it says “operated by” one of those three, you want Terminal 1.

For the wider picture, our full JFK airport guide and JFK’s live terminal map show how the whole place fits together.

Terminal 4 has two concourses — find your gate fast

Delta did not always live entirely in T4. It used to split operations with the old Terminal 2 next door. That ended on January 14, 2023, when Delta moved everything into Terminal 4 and closed the book on T2, which has since made way for the new Terminal One complex. Delta’s newsroom frames it as part of a $1.5 billion JFK transformation it broke ground on with the Port Authority back in 2021.

The upshot for you: Terminal 4 is now one big Delta house with 43 gates split across two concourses, according to the terminal breakdown at Upgraded Points. Knowing which concourse you are in matters more than almost anything else on your boarding pass, so let me split them the way a gate agent thinks about them.

Concourse A: regional jets and Delta Connection

Concourse A sits on the east side and runs 16 gates — A2 through A12, then A14 through A17, plus A19 and A21. Yes, there is no A13 or A18; do not go hunting for them. The higher-numbered gates, A9 through A21, are down on the lower level, and this is where Delta Connection and the regional-jet flying mostly lives.

This is also where Delta’s own count and reality diverge, which I always enjoy. Delta says it added 10 new gates here in the 2023 move. The Points Guy, which actually toured the finished concourse, counted 11 — A9 to A21, skipping A13 and A18. Either way, if you are on a small regional jet to somewhere like Buffalo or Burlington, expect Concourse A, and expect a walk down to the lower level.

Concourse B: Delta’s main hub and SkyTeam partners

Concourse B is the big one, on the west side, with 27 gates: B18 and B20, then B22 through B39, B41 through B49, and B51. The gates from B42 to B51 are on the lower level, and moving walkways run most of the concourse’s length — useful, because it is a long stretch end to end.

These gates now serve Delta and its partners exclusively. Alongside Delta mainline, this is home to the joint-venture and SkyTeam partners that fly from T4: Aeromexico, KLM, LATAM, Virgin Atlantic, and WestJet. If you are on a widebody to Europe or a mainline domestic flight, you are almost certainly in B.

Terminal 4, level by level

T4 stacks its functions across four levels, and picturing them saves you a lot of confused elevator rides. Upgraded Points lays the building out like this:

• Level 4 — check-in desks and the main security checkpoint. There is a separate Delta One check-in here for premium long-haul passengers, and it feeds straight to the Delta One Lounge.
• Level 3 — the retail hall, most of the departure gates, and the Capital One Lounge.
• Level 2 — the walkways you arrive on, coming off the jet bridge.
• Level 1 — baggage claim and immigration.

So departures work top-down: you check in and clear security up high on Level 4, then come down to the gates. Arrivals work bottom-up: you land, walk in on Level 2, and end up at bags and immigration on Level 1. One touch worth knowing — Delta expanded its TSA PreCheck Touchless ID to JFK in December 2023, so eligible flyers can check a bag and clear security without digging out a physical ID, on both the domestic and international sides of the terminal.

Connecting through JFK on Delta? Read this first

This is the part the airline map and the thin third-party posts skip, and it is the part that actually burns people. There are no airside connections at JFK.

Let me say that plainly, because it breaks the instinct every hub flyer has. At a normal hub, you land, walk through a secure corridor, and stroll to your next gate without ever leaving the sterile side. JFK does not work that way. Every terminal-to-terminal transfer — including a Delta passenger connecting to a partner in another terminal — means leaving security, riding the AirTrain, and clearing TSA all over again. The travel guide The Points Analyst puts most of those transfers at 25 to 40 minutes door to door, and says to budget at least 90 minutes for an international connection.

That 90-minute number is not padding. If you arrive on an international flight and connect to a partner over in Terminal 1, you have to collect your checked bags after customs and re-check them before you go anywhere — on top of the AirTrain ride and a fresh security line. I watched people misjudge exactly this kind of thing for twelve years in Atlanta, and JFK is less forgiving than most hubs. If your connection is inside 90 minutes and involves a terminal change, treat it as tight and keep your carry-on light.

Delta Sky Clubs and the Delta One Lounge at JFK T4

If you have lounge access, T4 has real options — but distance decides which one you use. There are two Delta Sky Clubs, and they are about 15 minutes apart on foot, so pick the one on your concourse rather than the one you read about.

• The Concourse A club is near gate A7 on the main level, open 5:00 a.m. to 10:30 p.m., per The Points Analyst.
• The Concourse B flagship is near gate B31 on the upper level, open 4:45 a.m. to 11:30 p.m.

Together the two clubs hold more than 800 guests at once, and the newer one — which opened in summer 2023 — spans 14,000 square feet, seats over 250, and has a Sky Deck and a 360-degree bar, according to Delta’s newsroom. If you are flying Delta One, the Delta One Lounge that opened in June 2024 was the first of its kind anywhere. And there is a Capital One Lounge in the Level 3 retail hall if that is your card. Our page on Delta’s Sky Club and lounge access at JFK has the entry rules for each.

Getting to and from Terminal 4

The free workhorse here is the AirTrain. It loops Terminals 1, 4, 5, 7, and 8 at no charge — a full loop runs about 10 to 15 minutes, or roughly 2 minutes between adjacent stops, per Wikipedia’s AirTrain rundown. You only pay the $8.75 fare if you enter or exit at Jamaica or Howard Beach, where you connect to the subway and the Long Island Rail Road.

One current headache: because of construction, Delta’s advisory is routing Lyft and Uber pickups to a remote lot from noon to 2:00 a.m. daily, reached by a shuttle bus from the T4 curb. Taxis still work the “B” Curb, and curbside stays open for travelers with disabilities and premium rideshare. If you land in that window, plan for the shuttle, not a quick curb grab. For the full rundown on trains, buses, and cabs, see our guide to getting from JFK into Manhattan.

For context on why all of this can feel like a small city: Terminal 4 is the largest terminal at JFK, handling more than 27 million passengers a year and connecting to over 130 destinations, and it is run by JFKIAT — the first public-private airport partnership in the U.S. It is big. Give yourself room.

Quick answers: Delta at JFK FAQ

Does Delta ever use a terminal other than 4 at JFK? Delta’s own flights all use Terminal 4. The exception is Delta-ticketed flights operated by partners Air France, China Eastern, or Korean Air, which depart from Terminal 1. Check the operating carrier on your boarding pass.

Where is Delta One check-in at JFK? On Level 4 of Terminal 4, there is a dedicated Delta One check-in area, and it leads straight through to the Delta One Lounge.

How do I get from Terminal 1 to Terminal 4 for a Delta connection? Ride the free AirTrain — it is about two minutes between adjacent stops. But there is no airside shortcut: you exit security, and if you arrived internationally you collect and re-check your bags after customs, then clear TSA again in T4. Budget 90 minutes or more.

Where is Delta baggage claim at JFK? On Level 1 of Terminal 4, along with immigration for international arrivals.