ATL: Hartsfield-Jackson Atlanta International Airport survival guide
Atlanta is one of the busiest airports in the world and Delta's biggest hub. Concourses T and A through F are connected by the Plane Train and a walkable underground corridor, and MARTA trains run straight to downtown.
Last checked October 2026. Confirm details on Atlanta airport (official).
ATL at a glance
| Layout | Domestic terminal plus Concourses T, A, B, C, D, E, and F |
|---|---|
| Between concourses | Plane Train, or walk the underground corridor |
| Public transit | MARTA rail to downtown Atlanta |
| Biggest airline | Delta |
Tips for ATL
- For connections, the Plane Train is usually faster than walking.
- Check which security checkpoint is shortest before you commit.
- MARTA from the airport avoids Atlanta traffic.
- International arrivals use Concourse F, with its own terminal and parking.
Universal airport tips
- TSA PreCheck usually means shorter lines, and you keep your shoes on.
- Screenshot your boarding pass in case the app or Wi-Fi fails.
- Know your rights before something goes wrong: refunds, bumping, and lost bags.