Getting between terminals
Main
Every concourse at Hartsfield-Jackson — T, A, B, C, D, E and F — is connected airside. The free Plane Train runs underground between all of them every couple of minutes, around the clock, and there are pedestrian tunnels as an alternative. There is one security checkpoint per side, so once you are through it any lounge in the airport is reachable without being screened again.
Checked 2026-08-03 · source