Which concourse is my airline at ATL? Gate letter and check-in building
At ATL the letter in your gate number is your concourse, T to F. Domestic flights check in at the Domestic Terminal, flights abroad at the International.

At ATL the letter in your gate number is your concourse, so gate B24 is in Concourse B. ATL’s airline pages name no concourse for any airline, but our airline pages do for Southwest, Alaska, Frontier, Denver Air Connection and Etihad, and Southern Airways Express’s own FAQ puts all its Atlanta flights at Gate E37 on Concourse E. For every other airline, your gate assignment is the answer. ATL’s maps page says passengers flying within the United States check in at the Domestic Terminal and passengers flying outside the country check in at the International Terminal.
Find the concourse from your gate
ATL’s flight search finds a departure from its flight number, such as DL1234, and ATL says to confirm flight updates with your airline before going to the gate.
The gate numbers on each concourse, and how you get there:
| Concourse | Gates | How you reach it |
|---|---|---|
| T | T1 to T21 | Joined to the Domestic Terminal |
| A | A1 to A34 | Separate building, reached by the Plane Train or the pedestrian walkway |
| B | B1 to B36 | Separate building, reached by the Plane Train or the pedestrian walkway |
| C | C1 to C55 | Separate building, reached by the Plane Train or the pedestrian walkway |
| D | D1 to D36 | Separate building, reached by the Plane Train or the pedestrian walkway |
| E | E1 to E42 | Separate building, reached by the Plane Train or the pedestrian walkway |
| F | F1 to F14 | Joined to the International Terminal |
Our terminal page shows each concourse and what’s in it, and describes the trip to A through E as the underground train rather than on foot. ATL’s FAQ also names the pedestrian walkway.
Airlines whose pages name a concourse
| Airline | Concourse |
|---|---|
| Southwest | C, gates C1 to C7, C9, C10, C12 to C17 and C20 to C22 |
| Alaska | E, gate E40 |
| Frontier | E |
| Denver Air Connection | T |
| Etihad | F |
Southwest and Denver Air Connection give their concourse on their own airport pages. Alaska’s page prints only “Gate location E40”, and Frontier’s own announcement of its move names Concourse E. Etihad’s row rests on a trade-press report. A gate inside a concourse can change, so read the gate off the flight screens. Qatar Airways checks in at International Departures in the International Terminal, and its gate comes from your flight the same way.
Where Delta, United and American have a desk or lounge
ATL’s airline pages name no concourse, but its directory lists where Delta, United and American have a desk or lounge.
- Delta Help Desks: Concourse A south of center, Concourse B center, Concourse C near gate C40, Concourse E center and Concourse F next to gate F6.
- Delta Sky Clubs: Concourse T near gate T7 (the directory) or gate T6 (ATL’s amenities page), Concourse A (center, and next to gate A17), Concourse B near gate B18, Concourse C next to gate C37, Concourse D center, Concourse E center and Concourse F level 2, west of center.
- United Club: Concourse T.
- American Admirals Club: Concourse T near gate T11 in the directory and on American’s page, across from gate T10 on ATL’s amenities page. The directory lists 4:15 a.m. to 8 p.m. Monday to Friday and 5 a.m. to 8 p.m. Saturday and Sunday. ATL’s amenities page lists 5:15 a.m. to 8:30 p.m. Sunday to Friday and 5:15 a.m. to 8 p.m. Saturday. American’s page lists 5 a.m. to 8 p.m. Sunday to Friday and 5 a.m. to 7:45 p.m. Saturday.
A desk or lounge on a concourse tells you nothing about where the airline’s flights leave. Our lounges page has each club.
Which building each airline checks in at
These are the check-in buildings ATL’s directory lists. Our flights page opens each airline’s page with its check-in counters and gates, but it doesn’t show live gates.
| Check-in building | Airlines |
|---|---|
| Domestic Terminal | Alaska, American, Avelo, Delta, Denver Air Connection, Frontier, JetBlue, Southwest, Sun Country, United |
| International Terminal, International Departures | Delta, Air Canada, Air France, Aeromexico, British Airways, Copa, Ethiopian, Etihad, Korean Air, KLM, LATAM, Lufthansa, Qatar, Scandinavian Airlines, Turkish, Virgin Atlantic, WestJet |
Delta is in both, so use the building that matches your flight. Our Delta page lists both of its check-in locations. MARTA’s page says some airlines let you check in for an international flight at the Domestic Terminal, and ATL’s terminal maps page tells you to contact your airline for specific check-in requirements. If yours does, ride the Plane Train from there to the International Terminal at Concourse F. If yours doesn’t, MARTA points to the free shuttle outside Baggage Claim.
North or South inside the Domestic Terminal
The Domestic Terminal’s check-in is split between a North ticketing area and a South ticketing area. Our airline pages name a side for four airlines: JetBlue is at the North ticketing area, Alaska at the North side’s door N-5, positions 31 and 32, and Denver Air Connection on the North side between Southwest and Alaska, and Southern Airways Express, by its own FAQ, next to Frontier through door N3. For any other airline, your airline’s page or booking confirmation is the place to check.
Uber’s ATL page prints a terminal beside many airlines, such as Alaska and Avelo at the North Terminal and Air Europa at the South Terminal. Its list doesn’t match ATL’s directory everywhere. Uber puts American at the International Terminal and Etihad and Copa at the North Terminal, where ATL’s directory has American at the Domestic Terminal and Etihad and Copa at the International Terminal. Go by your airline and the directory, and use Uber’s list as a hint.
If you’re at the wrong building
A free shuttle runs between the terminals, and the trip is 15 minutes by MARTA’s account. The Plane Train links them too. Our International Terminal shuttle page has the stop. If you’re taking a ride to the airport, Uber’s page says to enter your flight number so the driver goes to the right building.
Sources
- Our airlines page, Delta page, terminal page and International Terminal shuttle page
- ATL’s airlines page
- ATL’s maps and directions page
- ATL’s terminal maps page
- ATL’s amenities page
- ATL’s flight search
- MARTA’s page on getting to the airport
- Southwest’s airport information page and Alaska’s Atlanta page
- American’s Admirals Club page for Atlanta
- JetBlue’s Atlanta page
- Uber’s ATL page