Is a 45 min layover in Atlanta long enough?
A 45 minutes layover at ATL (Atlanta) is tight — it may or may not be enough.
Is 45 minutes enough for a layover at The William B Hartsfield Atlanta International (ATL)?
Clears the domestic-to-domestic MCT (35 min) and domestic-to-international (40 min) with a small buffer. But international arrivals require customs and immigration — minimum 85 minutes. Same-concourse Delta connections are routine; anything involving Concourse F immigration is a different story.
What is the minimum connection time at ATL?
Minimum connection times at The William B Hartsfield Atlanta International: Domestic-to-Domestic is 35 minutes, International-to-International is 90 minutes. These are the shortest layovers airlines will sell.
Can I make a 45 minutes connection at ATL on an international flight?
45 minutes is below the 90-minute international MCT at The William B Hartsfield Atlanta International. You may need to rush and could miss your connection. The Plane Train automated people mover runs underground between all seven concourses, departing every 1–2 minutes. A full end-to-end ride takes about 10 minutes. Walking between adjacent concourses takes roughly 10 minutes via the underground walkway. International arrivals in Concourse F must clear U.S. customs and immigration before connecting to any other concourse — there is no sterile transit option.
How much time do I need for a layover at ATL?
We recommend at least 1 hour for a comfortable connection at The William B Hartsfield Atlanta International. This gives you enough buffer for security (typically 10 minutes) and transit between terminals (up to 15 minutes).
What happens if I miss my connection at ATL?
Delta has service desks in every concourse. For same-day rebooking, use the Fly Delta app — it's faster than waiting in line. Southwest and other carriers operate from specific concourses with their own rebooking desks.