Do you go through US customs before or after your flight?

Usually, you go through customs when you exit the airport at your final destination. However, if you have a layover in a different city in your destination country, you may need to go through customs before your connecting flight.



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When you're connecting from an international flight to a domestic one, you'll always have to exit and reenter security as you'll need to go through customs and immigration (unless you have gone through preclearance aboard, which is rare).

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You will need to reclear TSA security once you arrive in your departure terminal. For international arriving passengers, you must claim all checked bags at Customs and recheck with your departing airline, even if the bags are checked to your final destination!

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As a general rule, it's best to allow at least two hours for international layovers. Pack smart: Avoid packing any prohibited items in your carry-on or checked baggage. Always check with local customs officials if you have any questions.

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If you checked a bag, you'll have to collect it from baggage claim from the international flight. You'll need to clear customs and immigration. Next, you'll recheck your luggage for the domestic flight. Finally, you'll need to go through Transportation Security Administration screening.

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It's important to remember to hand in your paper I-94 when leaving the United States, since that's how the U.S. government will track your departure and know that you left the country before your visa expired. You'll use information from your I-94 travel record for many immigration purposes.

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Allow enough time: Customs can be time-consuming, especially during peak travel periods. Make sure you allow enough time to clear customs and get to your connecting flight. As a general rule, it's best to allow at least two hours for international layovers.

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Yes, there might be exceptions, but most often than not the airline won't wait. What you can do is to try to avoid missing your connection. But if you do miss your connection, don't worry, the airline will book you on a new flight for free (if it's an airline-protected connecting flight).

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Overall, passengers usually have to re-clear security for connecting flights, though there may be some exceptions depending on the airport and flight itinerary. To make this process easier, checking with the airline or airport ahead of time is recommended.

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The recommended layover time for domestic flights is normally one hour. However, as previously stated, you may require longer if your flights are booked with two different airlines, if you are traveling to a very busy airport or if you require special assistance.

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