Do I have to go through customs at Heathrow?

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.



Whether you must clear customs at London Heathrow (LHR) in 2026 depends on your "transit" status. If you are arriving on an international flight and connecting to another international flight (and your bags are checked through), you do not need to go through UK border control or customs; you simply follow the "Flight Connections" signs to your next gate. However, if you are connecting from an international flight to a domestic UK or Ireland flight, you must go through immigration and customs at your point of entry (Heathrow). Additionally, as of February 25, 2026, all visa-exempt travelers transiting through the UK must have a valid Electronic Travel Authorisation (ETA). If you need to change terminals and leave the "airside" area, or if you have a "self-connect" itinerary with separate tickets, you will definitely need to clear customs.

People Also Ask

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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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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95% of arriving passengers should be processed within 45 minutes - but as said above, there are so many variables...

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The fastest way to pass immigration quickly is to use the electronic gates wherever possible. I recently passed through Terminal 5 in less than two minutes this way. U.S. passport holders have been able to use U.K. ePassport gates at major U.K. airports including all London Heathrow terminals since 2019.

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You do not require a passport to travel within the UK, but you will need to carry one type of photographic ID when travelling with us. Examples include: Valid passport. Valid driving licence, either provisional or full.

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Yes, customs officials have the authority to open and inspect luggage when you are entering a country. Customs officials have the right to search your luggage, bags, and personal items to ensure that you are not carrying any prohibited or restricted items.

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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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When you land in the United States, you'll first have to clear immigration. Then you'll have to wait at the baggage claim belt, and once you have all your belongings, you'll then clear customs. Once you exit the immigration hall there's almost always going to be a transit counter where you can re-check your bags.

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Terminal 3 Customs/Border Force is on the Ground Floor by Zone C. Use the red phone there to reach an officer. Border Force Customer Service at Terminal 3: +44 020 8910 3719 Hours of Operation: 24/7 but 10pm - 6am only has a skeleton crew so there might be a little delay.

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When you purchase a connecting flight, checked baggage is usually forwarded to your final destination, and will change planes when you do. The agent at check-in will usually ask if you want your luggage checked through to your last stop.

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What not to carry on your international trip
  • Don't carry unnecessary electronic items: carry only important electronics. ...
  • Don't pack jewelry: It can increase the weight of your luggage. ...
  • Don't keep any sharp object: knives, blades, and scissors are not allowed in most flights.


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