If your flight has a layover or connection through the United States, you may still need a valid ESTA – even if you never technically leave the airport. Here’s what you need to know.
Does a Layover Require an ESTA?
In most cases, yes. If your journey involves a connecting flight through a U.S. airport, you generally need a valid ESTA, even if you don’t plan to leave the international transit area or clear immigration.
Why Is an ESTA Required for Transit?
Unlike some countries with dedicated international transit zones, U.S. airports typically require all arriving passengers – including those in transit – to clear U.S. Customs and Border Protection, which requires a valid travel authorization.
What About Very Short Layovers?
Regardless of how short your layover is, if your itinerary routes you through a U.S. airport with a change of planes, the ESTA requirement generally still applies.
Connecting to a Domestic U.S. Flight
If your onward journey continues within the U.S. or you’re connecting to another international flight via a U.S. hub, you will need to clear customs and re-check your luggage in most cases, making a valid ESTA essential.
Are There Any Exceptions?
Very limited exceptions may apply for certain diplomatic or military travel, but for the vast majority of civilian travelers, the standard ESTA requirement applies to transit through the U.S.
Planning a Trip with a U.S. Layover?
Make sure to apply for your ESTA well before your flight, even if the U.S. isn’t your final destination. For general requirements, see our guide ESTA Requirements.
Apply for Your ESTA
Apply for your ESTA online to ensure smooth transit through the United States.