Minimum connection time between INT to INT flight at Atlanta

Question

I cannot find information about advised minimum connection times in between two international flights. (Munich –> Atlanta –> Cancun). I've found a ticket with the connection time of 1h55min (both flights on a single ticket).

1. Will that be enough time to make this connection?

2. Do I have to go through immigration control during this connection?

Thank you!

Answer

For connections at Hartsfield-Jackson Atlanta International Airport (ATL) between two international flights, there are a few important factors to consider. Since your itinerary is Munich → Atlanta → Cancun and both flights are on a single ticket, here’s what you need to know:

1. Minimum Connection Time:

ATL is a very large and busy airport, with international arrivals coming through Concourse F in the Maynard H. Jackson Jr. International Terminal (T). A connection time of 1 hour and 55 minutes is generally considered tight but doable, especially if both flights are on the same ticket and your bags are checked through to Cancun. Airlines typically account for minimum connection times when booking single-ticket itineraries.

Single-ticket benefits: You won’t need to claim and recheck your luggage, which saves significant time.
Airport layout: After landing in Concourse F, you may need to walk to your departure gate or take the airport’s automated ATL SkyTrain. Some international flights may depart from the same terminal, which reduces walking time.
Peak hours: If your flight arrives during peak hours, expect longer lines at immigration and security, which could make the connection feel tighter.

2. Immigration and Customs:

Since you are entering the United States in Atlanta, all travelers arriving from international flights must go through U.S. Customs and Border Protection (CBP) at ATL.

You will go through immigration control, where your passport and visa (if applicable) are checked.
Even though your bags are checked through to Cancun, you may still need to pass through customs for inspection if required, though typically for single-ticket itineraries, your bags are handled automatically.
After immigration, you will pass through security screening again before boarding your connecting international flight.

Additional Tips:

Follow signs for “International Connections” or “Connecting Flights” after landing, which will guide you directly to immigration and security checkpoints.
Use mobile apps or airport monitors to check your departure gate; ATL gates can be a long walk apart.
Consider notifying the flight attendants on your arriving flight that you have a tight connection—they sometimes provide guidance or assistance if you need to move quickly.
Allow extra time if possible—connections under 2 hours at ATL for international flights are tight but manageable.

In summary, your 1h55min connection is possible, especially on a single-ticket itinerary, but you will have to clear U.S. immigration and go through security again. Be prepared to move efficiently and keep an eye on time to ensure you make your onward flight to Cancun.