Heathrow does not, in fact, offer US pre-clearance. It is, however offered at both Dublin and Shannon International Airports in Ireland. 'The term “immigration” is sometimes used, but the proper term is “Customs.”' Erm, no. The two are mutually exclusive.
How do I avoid immigration queues at Heathrow? Once the check is made successfully, the gate opens automatically for you to walk through. Using e-gates helps you to avoid the queues and get through passport control more quickly. A Passenger Ambassador is available to help should you need it.
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.
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.
How long is the wait for passport control at Heathrow? The service level for non EU passport control is 95% of the time you get through in 45 minutes. This year Border Control never had a month where they hit it 100% of the time, so count on a hour to get through passport control unless you fly at an odd hour.
For international layover flights booked on one airline, two hours is often recommended to make your connection. For international flights on different airlines, the connection time will need to be even greater as you may have to change terminals between the two flights.
You might have to go through customs during a layover, especially if your layover is in the Schengen Area (which consists of most countries in the EU). For example, if your final destination is Paris, France, but you have a layover in Madrid, Spain, you will actually go through customs in Spain, not France.
You'll need to clear customs and immigration. Next, you'll recheck your luggage for the domestic flight. Finally, you'll need to go through Transportation Security Administration screening. This may include a physical inspection of your luggage and personal items with a metal detector or a full-body scan.
Many flights from the United States arrive at Heathrow between 6:30 a.m. and 10 a.m. (local time) each day, so this is when you can expect long lines at immigration. Similarly, each Sunday from 5 p.m. onwards many Brits will be returning from weekends away so there will likely be long waits.
Fast Track for departing flights is available to first and business class passengers in addition to top tier members of airline frequent flier programmes. Fast Track also welcomes American Express Centurion card holders.