How long must I be at the airport before an international flight?

When you're traveling outside of the United States, we suggest arriving at least 3 hours prior to your departure. You must be checked in at least 1 hour before your scheduled departure. Additionally, we recommend being at the gate and ready to board 45 minutes before your scheduled departure time.



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Generally speaking, most airlines advise that you arrive at the airport at least 2 hours prior to a domestic flight, and at least 3 hours prior to an international flight. That said, there are many factors to consider that will help you decide how much time you should budget for at the airport.

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The General Guideline for How Early You Should Get to the Airport. Generally speaking, most airlines advise that you arrive at the airport at least 2 hours prior to a domestic flight, and at least 3 hours prior to an international flight.

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Generally speaking, most airlines advise that you arrive at the airport at least 2 hours prior to a domestic flight, and at least 3 hours prior to an international flight.

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There are tons of variables that one should consider to decide how long before a flight to arrive. Going by the 2 hour domestic and 3 hour international general rules are super conservative but good for the people who check bags and don't want to think much about it.

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What is the recommended layover time for international flights? International flights require longer connections as you will often have to go through immigration and customs upon arrival. For international layover flights booked on one airline, two hours is often recommended to make your connection.

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When you're traveling within the United States, we make the suggestion to arrive at the airport at least 2 hours prior to departure. For most airports, you must be checked in at least 30 minutes before your scheduled departure time (airports requiring additional time are listed below, Go to footer note).

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Yes. TSA PreCheck® is available when you depart from a U.S. airport to a foreign country, and for domestic, connecting flights after you return to the United States. If you travel internationally four or more times a year, consider enrolling in Global Entry instead of TSA PreCheck®.

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Generally speaking, most airlines advise that you arrive at the airport at least 2 hours prior to a domestic flight, and at least 3 hours prior to an international flight.

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If you are wondering “do you go through customs when leaving the U.S.”, the answer is no. All countries have customs inspection procedures at borders and international airports. However, only passengers entering a country are subject to customs inspection.

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The current longest flight in the world
Its longest flight path, which connects Singapore's Changi Airport with New York's John F. Kennedy International Airport, 9,585 miles away, takes 18 hours and 40 minutes. The carrier has been flying the route since 2021.

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If your itinerary was purchased as one ticket (as in: you have only one itinerary and one confirmation number), and the connection time was too short and you miss the second (or third) flight, you can rest easy, no matter what happens. The airline will simply put you onto the next available flight, free of charge.

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So give us more details, but — no — 3 hours is enough and possibly too long. Why do you need 3 hours before an international flight? Check in, usually international flights require a physical rather than a digital boarding pass, plus checking of travel documents and dropping off any baggage.

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Airlines are required by the DOT to refund you your money if you cancel a flight within 24 hours of booking unless they offer a free, 24-hold option on a fare while you're searching for flights. The federal rule applies to all airlines that operate flights to, from, or within the U.S., including international carriers.

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What is a good connection time? Travel advisers say there's a lot to take into account when booking connecting flights, but a general rule of thumb is 60-90 minutes between domestic flights and at least two to three hours for international itineraries.

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The difference between Global Entry and TSA PreCheck TSA PreCheck costs $78 for a five-year membership, and $70 to renew. Global Entry includes TSA PreCheck, plus faster U.S. customs screening for international travelers arriving at U.S. airports. It's run by a different agency, U.S. Customs and Border Protection.

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If you travel internationally four or more times a year, consider enrolling in Global Entry. If you take less than four international trips a year, TSA PreCheck is a great choice for domestic travelers.

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Global Entry provides expedited U.S. customs screening for international air travelers when entering the United States. Global Entry members also receive TSA PreCheck® benefits as part of their membership.

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You can't upgrade from TSA PreCheck to Global Entry Even if you already have TSA PreCheck, you must apply for Global Entry separately. There is no way to get an automatic upgrade from TSA PreCheck to Global Entry. You must complete the Global Entry application documents and then make an interview appointment.

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How Do I Get TSA Precheck for Free?
  1. Aeroplan® Credit Card.
  2. The Platinum Card® from American Express (Terms apply, see rates & fees)
  3. The Business Platinum Card® from American Express (Terms apply, see rates & fees)
  4. Bank of America® Premium Rewards® credit card.
  5. Capital One Venture Rewards Credit Card.


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Online Check-in for International Flights. Online check-in allows those who have reserved seats and completed the required information to check into their flight from 24 hours prior to departure.

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The TSA and airports want you to get there earlier, each for its own reasons. The agency does not like to be rushed with screenings, even if there's a long security line. Airports want you to take advantage of their incredible shopping and dining facilities, which you can't do if you're rushing to the gate.

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