Seven concourses, 192 gates, and a linear layout designed around a single underground train. Hartsfield-Jackson is the world's busiest airport — and navigating it is simpler than it appears once you understand the structure.
Hartsfield-Jackson follows a linear “fishbone” design. The Domestic Terminal sits at the west end. Seven concourses extend south and east in a straight line: T, A, B, C, D, E, and F. Every concourse connects underground via The Plane Train and a pedestrian walkway.
All check-in counters, TSA security checkpoints, baggage claim carousels, and ground transportation exits are in the Domestic Terminal. Regardless of which concourse your gate is on, you enter and exit through the same building.
The International Terminal is a separate structure at the east end of the airport, connected to Concourse F. International arrivals clear customs there before taking The Plane Train to the Domestic Terminal for baggage claim and ground transportation.
Walking times via the Transportation Mall with moving sidewalks
The Plane Train is an underground automated people mover connecting all seven concourses. It is the fastest way to move between gates — covering the entire terminal in under four minutes. Trains arrive every two minutes, 24 hours a day. A parallel pedestrian walkway with moving sidewalks runs alongside for those who prefer to walk.
System
Automated People Mover (APM)
Route
Concourse T to Concourse F, underground
Frequency
Every 2 minutes, 24 hours a day
Full transit time
Under 4 minutes, T to F
Operator
Alstom, in service since 1980
Alternative
Pedestrian walkway with moving sidewalks (Transportation Mall)
T1 – T21 (21 gates)
Airlines
American Airlines, United Airlines, JetBlue, Southwest Airlines, Alaska Airlines, Frontier Airlines
Dining Highlights
Chick-fil-A, Varasano's Pizzeria, Grindhouse Killer Burgers, Starbucks, Popeyes, Hudson Nonstop
Notes
All domestic check-in counters, TSA checkpoints (North, South, Main), MARTA station, and baggage claim are in this terminal. It is the entry point for every departing guest and the exit point for every arriving one.
A1 – A34 (28 active gates)
Airlines
Delta Air Lines (mainline domestic)
Dining Highlights
One Flew South, Chicken + Beer by Ludacris, Café Intermezzo, Einstein Bros. Bagels, Sweetgreen
Notes
The first concourse south of the Domestic Terminal. One Flew South is widely regarded as one of the best airport restaurants in the United States. Two Delta Sky Clubs are here — one near Gate A17 with tarmac views and a second on the upper level near the concourse entrance.
B1 – B38 (32 active gates)
Airlines
Delta Air Lines (mainline domestic)
Dining Highlights
Paschal's, Arby's, TGI Fridays, Jamba, Shake Shack
Notes
Delta's second domestic concourse. Paschal's is a landmark of Atlanta soul food. A Delta Sky Club near Gate B18 offers panoramic runway views and high ceilings. Minute Suites near Gates B16 and B24 provide private rest pods for layovers.
C1 – C48 (30 active gates)
Airlines
Delta Connection, Southwest Airlines, Alaska Airlines
Dining Highlights
Cat Cora's Kitchen, Lorena Garcia Cocina, Panda Express, Great American Bagel, Starbucks
Notes
Southwest Airlines operates its Atlanta base from the south side of Concourse C. Delta Connection regional flights depart from the north side. A smaller Delta Sky Club sits near the center of the concourse — typically quieter than the others.
D1 – D46 (39 active gates, expanding to 73 by 2029)
Airlines
Delta Air Lines, Frontier Airlines, Spirit Airlines, Allegiant Air
Dining Highlights
Ecco, Tap, Firehouse Subs, Auntie Anne's, Popeyes
Notes
The $1.4 billion Concourse D expansion is the centerpiece of the ATLNext program. Ten of 19 modular sections were in place by the end of 2025, with completion expected in 2029. The new Delta Sky Club near Gates D16–D18 — 24,000 square feet, 500-plus seats — opened in April 2025 and is the largest Delta lounge at ATL.
E1 – E36 (28 active gates)
Airlines
Emirates, Ethiopian Airlines, Korean Air, Turkish Airlines, Qatar Airways, Frontier Airlines
Dining Highlights
Hartsfield Café, Asian Chao, Budweiser Brew House, Einstein Bros. Bagels
Notes
The eastern-most domestic-side international concourse, with U.S. Customs and Border Protection processing for arriving international flights. The American Express Centurion Lounge — 26,000 square feet near Gate E11 — is here. A Delta Sky Club near Gate E15 offers shower suites and rotating international cuisine.
F1 – F14 (14 gates, including A380-capable gates)
Airlines
Air France, British Airways, KLM, Lufthansa, Virgin Atlantic, Delta Air Lines (international routes)
Dining Highlights
Kelly's Cajun Grill, TGI Fridays, Hudson Nonstop
Notes
The International Terminal houses Concourse F, the only concourse at ATL with gates that accommodate an Airbus A380. Customs, immigration, and Global Entry kiosks are on-site. A Delta Sky Club on the mezzanine level offers shower suites. The Club ATL — open to Priority Pass, LoungeKey, and day-pass guests — is also on the mezzanine near the chapel.
The Concourse D expansion is the largest single project in the ATLNext Capital Improvement Program. At a cost of $1.4 billion, the project will add 34 new gates to the concourse — bringing the total from 39 to 73 — and accommodate next-generation wide-body aircraft.
The project uses a modular construction approach. Ten of 19 modules were in place by late 2025. When complete in 2029, the expanded concourse will increase seating capacity by 20 percent and include new concessions, wider corridors, and additional restroom facilities. Concourse D remains operational throughout construction.
34
New gates
$1.4B
Project investment
2029
Expected completion
73
Total gates at completion
The International Terminal is a separate building at the east end of the airport, connected to Concourse F. It is the only concourse at ATL with gates that accommodate an Airbus A380. Air France, British Airways, KLM, Lufthansa, Virgin Atlantic, and Delta's long-haul international routes operate from here.
U.S. Customs and Border Protection, immigration processing, and Global Entry kiosks are all located at the International Terminal. Arriving international guests clear customs here before taking The Plane Train to the Domestic Terminal for baggage claim and ground transportation.
Departing international guests can access Concourse F from any concourse via The Plane Train — no need to check in at the International Terminal building itself if you have already cleared security at the Domestic Terminal.
Gates
F1 – F14 (14 gates, including A380-capable)
Airlines
Air France, British Airways, KLM, Lufthansa, Virgin Atlantic, Delta (international)
Customs
U.S. CBP, immigration processing, and Global Entry kiosks on-site
Lounges
Delta Sky Club (mezzanine, shower suites, outdoor terrace), The Club ATL (Priority Pass, day pass $50)
Dining
Kelly’s Cajun Grill, TGI Fridays, Hudson Nonstop, duty-free shopping
Delta flies from A, B, C, D, E, and F. Southwest from C. American, United, and JetBlue from T. Frontier and Spirit from D and E. Check your boarding pass — the gate letter tells you which concourse.
Walking from T to F takes 20 minutes. The Plane Train does it in under four. Trains run every two minutes, 24 hours a day. For connections with less than 60 minutes, always take The Plane Train.
The $1.4 billion Concourse D expansion is active through 2029. Construction may shift gate assignments and narrow corridors. Add 5–10 minutes to your connection estimate if your gate is in Concourse D.
If your flight arrives at Concourse E, you clear customs at the Domestic Terminal. If it arrives at Concourse F, you clear customs at the International Terminal. Both lead to ground transportation, but the walk is different.
All concourses connect post-security. The Centurion Lounge (Concourse E) and the new D Sky Club are accessible from any departure gate. Allow 15–20 minutes round-trip if visiting from a distant concourse.
If departing from Concourses D, E, or F, the South checkpoint is typically faster. For Concourses T and A, the North checkpoint is closest. The Main checkpoint serves all concourses but draws the largest volume.
Hartsfield-Jackson has seven concourses: Domestic Terminal (T), A, B, C, D, E, and F. Concourses A through D serve primarily domestic flights. Concourses E and F handle international departures and arrivals. All seven are connected post-security by The Plane Train and the pedestrian Transportation Mall.
Walking from the Domestic Terminal (Concourse T) to Concourse F takes approximately 20 minutes via the underground Transportation Mall with moving sidewalks. The Plane Train covers the same distance in under four minutes, with trains every two minutes.
Delta Air Lines operates from Concourses A, B, C (regional), D, E (select international), and F (international). Concourses A and B are the primary domestic concourses. Delta also uses gates in Concourse T for select flights. Regardless of concourse, all Delta arrivals proceed to the Domestic Terminal baggage claim.
The $1.4 billion Concourse D expansion will add 34 new gates, bringing the concourse total from 39 to 73. The project is part of the ATLNext modernization program. Ten of 19 modular sections were in place by late 2025, with full completion expected in 2029. The expanded concourse will accommodate larger aircraft and increase seating capacity by 20 percent.
Yes. Concourse F is part of the International Terminal on the east end of the airport. It has 14 gates, including A380-capable gates for wide-body international aircraft. U.S. Customs and Border Protection, immigration processing, and Global Entry kiosks are all located at the International Terminal.
Yes. The Plane Train is an underground automated people mover that connects all seven concourses. It runs 24 hours a day, every two minutes. The full route from Concourse T to Concourse F takes under four minutes. A parallel pedestrian walkway with moving sidewalks — the Transportation Mall — runs the same route for those who prefer to walk.
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