United States · Atlanta
Hartsfield-Jackson Atlanta International Airport (ATL) Online Check-in
The world's busiest airport by passenger traffic and Delta's primary hub. Single domestic terminal connected to seven concourses (T, A, B, C, D, E, F) by the Plane Train people-mover.
Now at Hartsfield-Jackson Atlanta International Airport
- Security wait (today, avg) 18 min
- Disruption No reported disruption
- Weather impact Clear, 14 °C
Quick information
Airlines we cover at Hartsfield-Jackson Atlanta International Airport
Hartsfield-Jackson Atlanta International Airport hosts about 70 airlines in total. We have terminal-specific check-in pages for the 1 listed below. Pick yours to see counters, bag-drop, and online check-in details.
How to check in for a flight from Hartsfield-Jackson Atlanta International Airport
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Check in online before you leave home
Most airlines open online check-in 24–48 hours before departure. It saves time at the airport and avoids airport-counter fees on low-cost carriers.
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Arrive at the right terminal
ATL has 3 terminal(s). Check your airline's terminal in the table above before you set off.
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Drop off checked baggage
Counters typically open 2 hours before departure and close 40 minutes before. Use self-service bag-drop kiosks to save time.
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Pass security
Liquids must be in a single transparent bag, max 100 ml each. Laptops and large electronics out of bags. Submit your security wait time below to help others.
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Reach your gate on time
Most airlines close the gate 20 minutes before departure. Allow 5–15 minutes to walk from security to the gate.
Tips for Hartsfield-Jackson Atlanta International Airport
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Plane Train moves you fast
The free underground 'Plane Train' connects all concourses every 2 minutes. Walk between concourses takes 8–15 minutes via the train.
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ATL is huge but well-organized
Despite being the world's busiest, ATL has efficient layouts and signage. Domestic security wait is typically 15–30 minutes outside Christmas / Thanksgiving.
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Concourse F has the best food
International Concourse F (Delta long-haul) has Delta Sky Club and several upscale restaurants — best dining at ATL by far.
Popular destinations from Hartsfield-Jackson Atlanta International Airport
Frequently asked questions
Which concourse does Delta use at ATL?
Delta domestic uses Concourses T, A, B, and C. Delta international flights depart from Concourse F. SkyTeam international partners (KLM, AF) also use Concourse F.
How early should I arrive at ATL?
2 hours for domestic, 3 hours for international. ATL is generally efficient; allow extra during the 06:00–08:00 morning rush and Sunday evening peaks.
Is there a hotel inside ATL?
The Renaissance Atlanta Airport Hotel is connected to the domestic terminal by a covered walkway. The Westin and other hotels are landside near the airport, with shuttle service.
Official sources
The check-in details on this page are sourced from each airline's website. For terminal layout, opening hours, and ground-side services, see the Hartsfield-Jackson Atlanta International Airport official site below.
- Wikipedia: Hartsfield-Jackson Atlanta International Airport — Editorial overview, history, statistics.
- FlightRadar24: ATL live data — Live flight arrivals, departures, and delays.
- travel.state.gov — Up-to-date entry requirements and security guidance for United States.