Airline and terminal guides
Every ATL guide on airlines and terminals: 5 guides, each answering one question.
Which airlines use which terminal at ATL, and what that means for check-in, security and connections. The guides answer the terminal question for each part of the airport; each airline has its own page with its counters and gates.
Looking for the listings themselves? They are on the Airlines at ATL page.
American Airlines at ATL: check-in, concourse and the Admirals ClubAmerican checks in at ATL's Domestic Terminal, counters open 3 a.m. to 9 p.m. No concourse is published, so use your gate letter. Admirals Club is in T.
Every airline at Atlanta airport, A to Z: which terminal to check in atWhich terminal ATL lists for 26 of its 27 airlines, A to Z: Domestic or International Terminal, with Delta at both, plus the phone number ATL lists for each.
Frontier, JetBlue and Alaska at Atlanta AirportAll three check in at ATL's Domestic Terminal. JetBlue and Alaska use the North side. Counter hours, bag cutoffs and what the airport doesn't publish.
Southwest at ATL: Domestic Terminal check-in and Concourse C gatesSouthwest checks in at ATL's Domestic Terminal and boards from Concourse C. Its ticket counter opens 120 minutes before the first departure of the day.
United at ATL: Domestic Terminal check-in, concourse and the United ClubUnited checks in at ATL's Domestic Terminal and ATL lists its United Club's location as T11. Neither ATL nor United names its concourse, so use your gate letter.