How long of a layover do I need in London?

And you can see the entire city during a short two-hour layover! Of course I'm kidding. There's wayyy too much awesomeness in London to see it all in such a short time. But, if you're motivated, you can actually see quite a bit during a 5- to 8-hour layover in London at Heathrow or Gatwick Airport.



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We recommend that you allow the following minimum connection times: 1 hour for connections within the same Heathrow terminal. 1 hour 30 minutes for connections that require travel between terminals at Heathrow.

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Most people who have a layover in London try to leave the airport if they have 6 hours or more (depending on which airport you fly into). But there are a few things you should take into consideration on whether you CAN or SHOULD leave the airports to go outside in London.

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CONNECTING FLIGHTS If your baggage is checked through to your final destination, that's where you clear customs. If you're collecting your baggage and checking in to your next flight yourself, you need to pass through customs at Heathrow.

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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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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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How much time do I need for a layover in London? Heathrow Airport is very large and security lines are often long. At the very least, you will need at least 3 hours between flights to avoid any stress while transiting the airport.

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If you take these flight layover rules into account, there's no reason you shouldn't leave the airport during the layover. Just keep an eye on the time, and use your airline's travel app to track changes to flight times and possible delays.

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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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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.

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Transit. Another point of confusion is layover vs stopover or transit. Once again, a layover is a stop that lasts less than 24 hours, while a stopover lasts 24 hours or more. On the other hand, Transit is simply the act of returning to the same aircraft after your layover at the airport.

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Everyone who boards an aircraft at Heathrow has to be security screened to UK government standards. Even if you've already been through security checks at another airport, we're obliged to screen you again before you fly from Heathrow.

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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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While skiplagging isn't illegal, American Airlines filed a civil lawsuit earlier this month against Skiplagged.com, accusing the company of unauthorized and deceptive ticketing practices and tricking customers into believing they've gained access to a secret loophole.

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If you have a layover and both flights are part of the same itinerary and booked on a single ticket, you typically do not need to check in again. Your checked baggage is usually tagged through to your final destination, and you would proceed directly to your connecting gate after going through security.

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Don't worry though, there's plenty on offer to keep you entertained, relaxed and refreshed before your connecting flight departs.
  1. Enjoy a meal in our huge range of restaurants.
  2. Indulge at some of Heathrow's exclusive shops.
  3. Relax in one of our premium lounges.
  4. Refresh with a relaxing spa treatment.


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How long does it take to clear customs at Heathrow? On average, it takes between 30 minutes and 1 hour to clear customs and immigration at Heathrow Airport.

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If you miss your connection booked with the same airline that your were on for your first flight, and the issue is due to a delayed take off or anything else that's in the hands of your airline, it's the airline's responsibility to rebook you on the next available flight.

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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.

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Most (but again, not all) airports connect international terminals airside. 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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