Atlanta Hartsfield-Jackson Airport Complex
The airport grounds are made up of two large terminals (Domestic and International) which in turn are subdivided by concourses. While the satellites in concourses A - E are parallel to each other, arranged successively in distance from the main terminal, concourses A, B, C, D, E and T are part of the domestic terminal, and concourse F (approximately 1 km away from lobby E) is part of the international terminal.
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See connection between the Terminals
Domestic Terminal
The Domestic Terminal is located on the western side of the airport and is separated north and south by an atrium. Delta Air Lines occupies the South Terminal with its own curbside check-in and baggage claim area.
Other domestic airlines, such as Southwest Airlines, United Airlines, Spirit Airlines, Alaska Airlines, and JetBlue Airways, operate out of the North Terminal with a baggage claim area and check-in facilities. United has a dedicated baggage claim area located on the ground level that can be accessed via various escalators and elevators.
Concourse A
Concourse A is made up of 34 doors, many of which are operated by Delta. There is a Delta Ticket Service Center located opposite gate A18, a Delta Self Service Center at gate A27, and a Delta Sky Club lounge near gate A17.
If you are arriving from the domestic terminal, gates A1 to A18 are on the right and A19 to A34 are on the left.
Concourse B
Concourse B features doors B19-B36 on the left, B18-B1 on the right. The Delta Ticket Service Center and the Delta Self Service Center are near gate B9; the Delta charging station is near gate B16 and the smoking lounge is near gate B24. Food and beverage, retail stores and services are located throughout the B Concourse.
Airline Lounges: Delta Sky Club with 500 seats and natural lighting is now centrally located.
Concourse C
Concourse C has doors 1-57 with Plane Train connections to halls A, D, E, F and the International Terminal and the Main Domestic Terminal. Food and beverage, retail stores and services are located throughout the Concourse.
Airline lounges: Delta Sky Club
Concourse D
Concourse D features doors D21-D46 on the left; D15-D1 and D1A on the right, connected to the Plane Train to access lobbies E, F or C, B, A, T and the national terminal. Currency exchange is in the center.
Airline lounges: United Club (near gate D12) and Delta Sky Club (near gate D27).
Concourse E
Concourse E has doors E1 to E36 and is connected to the Plane Train to access halls F, D or C, B, A, T and the main domestic terminal.
Concourse T
Concourse T is the only one attached to the Main Domestic Terminal, with separate security checkpoints and with gates T9-15 on the left, T8-T1 on the right. In the center between the gates is the train that serves halls A - F and the International Terminal. Delta's self-service center is close to T5. The Delta charging station is located in front of gates T2 / T3 and at gate T7. Food and beverage, retail concessions, and services are scattered throughout the Concourse.
Airline lounges: American Admirals Club and Delta Sky Club.
International Terminal
Concourse F

Image from Youtube
ATL International Terminal / Concourse F is located on Terminal Roadway, one mile west of Interstate Hwy 75, Exit 239, or one mile before I-85 Domestic Terminal Exit 242.
Arrivals level 1 of the International Terminal has entry / exit gates A1-A3. After disembarkation, passengers walk down the aisle towards the escalators taking them to the Arrivals level, where they go through Customs and Immigration, then proceed to the baggage claim area with 7 carousels.
Connecting passengers re-check their bags by proceeding to the transit area past the baggage claim area and turning left towards the baggage check counters, then follow the signs to the Concourse F Plane Train station or the pedestrian walkway that connects with lobbies E, D, C, B, A, T, and the Main Domestic Terminal. The E-F connector is located on the arrivals level.
Non-connecting passengers can meet friends and family in the Arrivals Hall or take the shuttle bus to the domestic terminal ground transportation hub, which offers several options for getting to Atlanta and beyond.
The Mezzanine, Level 3 houses airline VIP lounges and areas, business and personal services, accessible via escalators / elevators. The common use lounge 'The Club at ATL' is available to all passengers with a day pass available at the front desk - at $ 35 / day.
Departure level 2 of the international terminal houses three rows of ticket counters and 70 self-service check-in kiosks, leading to security control and lobbies F and E. Exit gate 2 leads to the hourly parking deck . The 8 lanes at the main TSA security checkpoint are for passengers with boarding passes at the boarding gates in lobbies E and F; after the security check is the Transit Hall, a two-level open area with access to Concourse F and its Plane Train station.