Arriving at the sprawlingDelta Airlines Atlanta Airport Terminal places you at the heart of the world's busiest connecting airline operation. The carrier's departure gates span across multiple parallel midfield wings, including Concourses T, A, B, C, D, E, and F. To transition smoothly ***ween these distant gate areas, travelers simply hop on the subterranean Plane Train, a high-speed automated mover that links all concourses directly to the main baggage claim lobbies.