Do I have to go through security again for connecting flight JFK?

If you're connecting from a domestic flight to a domestic flight, there is no need to go through security again. If you're arriving on an international flight, you'll have to go through security to connect to any flight, whether international or domestic.



Yes, in almost all scenarios at John F. Kennedy International Airport (JFK) in 2026, you must clear TSA security again when connecting between different terminals. Because JFK’s terminals are physically separate buildings linked by the AirTrain, you are effectively "leaving" the secure area of one terminal to travel to the next. If you are arriving on an international flight, the process is even more involved: you must clear U.S. Customs and Border Protection, collect any checked luggage (even if it is tagged to your final destination), re-check it at a transfer desk, and then take the AirTrain to your departure terminal to undergo full security screening. The only exception is if your connection is within the same terminal (e.g., Delta to Delta in Terminal 4), but even then, certain international-to-domestic transitions may require a security re-check.

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Flight Connections at JFK For international-to-international or international-to-domestic connections, passengers will have to clear Immigration, claim baggage, and then clear Customs. After passing through Customs, there are recheck counters available for bags tagged to an onward destination.

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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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No, that is not nearly enough time. It can often take an hour just to get through Immigration and you may still be waiting for your luggage (and have to go through Customs, check in for new flight and then go through security again) after your ongoing flight has taken off.

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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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Security. Wait Times. Check our websites, JFK, LaGuardia, Newark Liberty, to get a sense of current wait times but always allow plenty of time for the security screening. It is recommended that you arrive two hours before domestic flights and three hours for international travel but also check with your airline.

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Is 2 hours enough time to get through customs at JFK? Yes, it is. Customs does not take a long time at JFK, and if you comply with regulations, you should be done in 10-15 minutes.

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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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Travelers will claim and bring their luggage with them through U.S. Customs then stay to the right to recheck with their airlines. All connecting passengers must go through U.S.'s Transportation Security Administration (TSA) security screening.

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If you miss your connecting flight, the airline will usually transfer your checked luggage to the next available flight. However, it is important to contact the airline as soon as possible so they can make sure that your bags are on their way.

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If you must connect via JFK, make sure you have sufficient time: For connections from domestic (US or Canada) flights to other destinations in the US or Canada, allow 2–3 hours; for transfers from domestic to international destinations, allow 3–4 hours; for international to domestic, 3–5 hours; and for international to ...

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JFK has separate security checkpoints for all 5 terminals, and passengers are recommended to check in 2 hours before a domestic flight and 3 hours before an international flight to allow suitable time to check in and clear security.

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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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If you're flying internationally, you may need to go through a second security screening before your flight: immigration. All you'll need to do here is show your passport and follow the instructions from the immigration staff. This is the last step before you can walk to your gate for your flight.

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You might have to go through customs during a layover, especially if your layover is in the Schengen Area (which consists of most countries in the EU). For example, if your final destination is Paris, France, but you have a layover in Madrid, Spain, you will actually go through customs in Spain, not France.

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For international layover flights booked on one airline, two hours is often recommended to make your connection. For international flights on different airlines, the connection time will need to be even greater as you may have to change terminals between the two flights.

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If your flight is canceled or a delay causes you to miss your connection, we'll rebook you on the next flight with available seats. We will reroute your bags automatically when you check in for your new flights. There are 3 ways to view your new trip or to choose a different flight: Open the American app.

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We will rebook you on the next available flight on Delta at no additional cost. If a Delta flight is unavailable, we will arrange an alternative flight operated by another airline with which we have a ticketing agreement at no additional cost.

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You could gamble on it and it could be fine, particularly if it's the same airline and you're sure it's the same terminal (there are several terminals), but it would stress me out too much. Are you flying internationally on your second flight? That's usually why people connect at JFK, and an hour is not enough if so.

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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! To learn more about the AirTrain system, click here.

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