Do you go through customs on a connecting flight UK?

CONNECTING FLIGHTS If you're collecting your baggage and checking in to your next flight yourself, you need to pass through customs at Heathrow.



If you are transiting through a UK airport (like London Heathrow) on a single ticket in 2026, you generally do not go through customs or immigration, provided your bags are checked through to your final international destination. You will stay "airside" in the sterile transit area. However, there is a major new requirement this year: as of February 25, 2026, most visa-free travelers (including U.S. and Canadian citizens) must hold a valid UK Electronic Travel Authorisation (ETA) even if they are only transiting. If you have to change airports (e.g., from Heathrow to Gatwick) or if you are connecting to a domestic UK flight (e.g., London to Edinburgh), you must clear immigration and customs at your first point of entry. In these cases, you will collect your luggage, pass through the "Green Channel" (Nothing to Declare), and then re-check your bags for the domestic leg. Always check your bag tags; if the final destination code is not your final stop, you will be clearing customs at the connection.

People Also Ask

Do You Have To Go Through Customs During A Layover? 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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In most cases, you'll receive your boarding pass for your connecting flight already when you check in for your first flight. This means you don't have to check in again for your next flight. If you haven't received it, you can go to the transfer desk or kiosk of the airline you're flying with to collect it.

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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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There are two customs channels to choose from when entering the UK: red or green. Green customs channel: Flying from anywhere with nothing to declare. Red customs channel: Flying from anywhere with goods to declare.

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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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When do you go through customs on international flights? Usually, you go through customs when you exit the airport at your final destination. However, if you have a layover in a different city in your destination country, you may need to go through customs before your connecting flight.

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The recommended layover time for international flights is generally longer, as you will have to go through customs and immigration before boarding your next flight. 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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When checking in your luggage in most cases it will be checked through to your last stop. When arriving at the connecting airport all you have to do is to go to your next gate and wait for the next plane, your next flight. There might be a security check in the terminal at the connecting airport.

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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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If your flights were booked under one ticket, your bags will be checked through to your final destination. If your flights were booked under separate tickets, you will need to collect your bags and recheck them before your connecting flight.

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Do You Have To Go Through Customs During A Layover? 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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A layover is a time you spend at a connecting airport between your primary flight and destination. Usually, on domestic flights, a layover is between 60 minutes to several hours, up to 23 hours, that you have on a transfer flight.

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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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The minimum connection time at Doha Hamad airport starts at 45 minutes. This is valid for international connections of Qatar Airways. Most flights to USA and Canada require at least 1 hour, but there are also flights requiring 1 hour 25 minutes.

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Generally speaking, most airlines will make some kind of efforts to wait for delayed passengers on a connecting flight, though this is not necessarily guaranteed. In some cases, airlines may be able to hold a connecting flight for a period of time, but it is not something that is typically guaranteed by any airline.

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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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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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Trusted Traveler Program Enrollment
Global Entry is a U.S. Customs and Border Protection (CBP) program that allows expedited clearance for pre-approved, low-risk travelers upon arrival in the United States. Members enter the United States through automatic kiosks at select airports.

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They will ask you a few basic questions, such as where you went and what you purchased on your trip. They look for items on the restricted list, contraband, or anything left off the customs form. Be as specific and as prompt as possible when answering.

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