How much time do you need between connecting flights?

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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Give yourself a fighting chance
But the 45-minute rule only applies under ideal circumstances; if your connection takes you to a notoriously troublesome airport during the winter months (we're looking at you, Chicago O'Hare), try for a flight with at least a 75-minute layover.

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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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It's really hard to put an exact number on how long you need for your layover. At a minimum, I'd say you should plan for one hour for domestic layovers and two hours for international layovers. But this is not a hard, fast rule! If you have to go through security again on a domestic layover, you might need more time.

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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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Missed flight due to short layover
If you missed your connecting flight due to a short layover, the airline will book you on the next flight free of charge as long as the connecting flight is part of the same ticket.

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In most cases, a 30-minute layover for domestic flights and an hour for international flights is considered a minimum, or short, layover.

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If the missed connection is the airline's fault (a delayed initial flight due to mechanical problems, for example), the airline should rebook you on the next available flight. If the next outbound flight is the following morning, the airline should either book you on another airline or provide accommodations and meals.

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For international layover flights booked on one airline, two hours is often recommended to make your connection. If your connecting flight leaves from a notoriously busy airport, it may be necessary to arrange a layover that's at least three hours long.

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Customs and immigration are usually required at the connecting airport for international flights. You don't always have to for domestic flights. In most cases, passengers on layover flights must clear customs and immigration at the first point of entry.

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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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There is no one-size-fits-all answer here, it can vary greatly from one airport to another. Some international airports have a minimum connecting time as low as 30 minutes. But usually, when traveling internationally, the MCT is at least an hour. It can go up to 2 hours in large airports requiring a change of terminal.

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Recommended minimum connection times
Delta: 30-minute minimum connection time. Southwest: At least 30 minutes if you have checked bags. United: 30-minute minimum for domestic, 60 minutes for international.

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For domestic connections within countries like the USA or Canada, a general rule of thumb is to have at least a 60-minute layover. However, at large airports like Atlanta or Toronto, you might want to consider longer connection times to account for the airport layout and possible security checks.

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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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You can simply check-in your baggage at the starting airport, and the airline will transfer it to your final destination. However, if you are traveling on multiple tickets, i.e., each flight is booked under a separate ticket, you will need to collect your baggage at each layover and re-check it with the next airline.

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In a passenger context, MCT is defined as the shortest time interval required in order to transfer a passenger and his luggage from one flight to a connecting flight, in a specific location or metropolitan area.

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Two to three hours is the minimum recommended time for an international layover, but more might be needed. Sally French is a travel rewards expert who joined NerdWallet in 2020. She previously wrote about travel and credit cards for The New York Times and its sibling site, Wirecutter.

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When layover flights are booked with the same airline, your baggage will be automatically transferred through to your final destination. However, if the two flights are with different airlines, you may have to claim and re-check your baggage during your layover.

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While these terms are often used interchangeably, they are not the same thing. A layover is the time you spend at the airport between two flights. A connecting flight is the next flight in your itinerary that you're waiting at the airport to take.

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They usually won't. However, if the delay is due to crew, mechanical problems, etc., then they will provide a hotel room for you if you miss the connection. In either case, they'll rebook you on the first flight with an available seat the next day.

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