How long after boarding does a plane take off?

Most flights start boarding 30 - 50 minutes before scheduled departure, but the exact time depends on your destination and plane. Boarding ends 15 minutes before departure. If you're not on board, we may reassign your seat to another passenger. You will not be allowed to board once the doors close.



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That takes time, which is why most airports will close the gate before the scheduled departure - they don't want someone racing on board just as they're about to leave the gate, since that prevents them from taking off on time.

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There could be issues with the mechanics of the jetway, or it could take a few times to line up properly with the aircraft door. Multiple aircraft could arrive at the airport at the same time and the ground crew cannot accommodate them all at the same time.

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This shouldn't cause a problem as passengers are expected to be at the gate 15-30 minutes before and should have boarded the plane at least 15 minutes ahead of the departure time. If you somehow don't make it onboard within these timeframes, the flight can absolutely leave without you.

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Boarding typically begins about 45 minutes before the plane takes off and the boarding gates close about 30 minutes before the departure time. So it's a safe bet that you go to the airport at least 2 to 4 hours in advance.

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If you missed your flight due to traffic, the airline may label you as a no show and cancel your entire itinerary. This is why it is important to call ahead and see if you can be rebooked on another flight so that you can still fly. Chances are, you will need to pay the rebooking fee.

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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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Check-In Times at U.S. Airports
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). Additionally, you're required to be at the gate and ready to board 15 minutes before scheduled departure.

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Check-in times To check bags or check in at the airport, you must be there a certain amount of time before scheduled departure: Within the U.S. – 45 minutes. To or from destinations outside the U.S. – 60 minutes.

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The general guideline on how early to get to the airport for a domestic flight is 2 hours. However, those traveling at a very busy time of year or out of a large airport might want to allow more time.

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Airlines generally recommend arriving at the airport at least three hours before an international flight and two hours before a domestic flight. There are a few considerations, though, and I usually treat each trip to the airport on a case-by-case basis.

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People want to board a plane first because it gives them the opportunity to get settled in and find their seat before everyone else. It also allows them to store any carry-on items they may have, such as a laptop or purse, without having to worry about someone taking their spot.

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According to USDOT, airlines can keep you on a domestic flight for three hours before they are required to “begin to move the airplane to a location where passengers can safely get off.” On international flights, airlines are required to let passengers off after four hours.

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Airlines are pretty clear about how early you should get to the airport: anywhere from 90 minutes to four hours before your departing flight, depending on where you're going.

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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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As a general rule, you should arrive at the airport no less than an hour before a domestic flight. Ninety minutes to two hours is a safer bet, and most airports, such as London Heathrow and London Gatwick, recommend that you get to the airport two hours before a domestic or European flight.

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Arrive at the airport at least two hours ahead of your flight to make sure your PreCheck status is confirmed (if you aren't able to do so online or by phone). Be sure you are traveling through an airport with TSA PreCheck services.

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You can usually check in online starting 24 hours before departure. If checking luggage, you will need to bring your luggage to a staffed counter or checked luggage station once you arrive at the airport. Benefits of online check-in: Avoid potential check-in lines at airport.

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Depending on the requirements of airport authorities, you will need to present a mobile boarding pass, a paper boarding pass printed out by you or a paper boarding pass picked up from the check-in desk.

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According to the Department of Transportation (DOT), there are tarmac delay rules that US airlines must follow: Carriers are not allowed to hold a domestic flight on the tarmac for more than three hours and an international flight for more than four hours, barring a couple of exceptions (like if the pilot deems it's ...

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