Do I need to go through security for a connecting flight at Heathrow Terminal 5?
Wherever you're going, you'll need to go through Heathrow security. With a bit of preparation and the expert assistance of our staff, you'll fly through in no time.
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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.
For connecting domestic flights, you almost never have to exit and reenter security, though there are some exceptions at airports where the terminals aren't all connected. For domestic-to-international connection, it's still pretty rare that you have to exit and reenter security, even if you're changing terminals.
Security shouldn't take more than 10 - 20 minutes but please do factor in time for unexpected events (delays in transport etc). Many long haul flights from T5 depart from B and now C gates in the satellite terminal buildings.
We recommend getting to the airport three hours before your flight if you're travelling internationally, or two hours if you're travelling domestically or to Europe.
CONNECTING FLIGHTSIf 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.
Heathrow airport recently replaced its older baggage screening equipment with a new 3D scanning technology at its Terminal 5; we went behind the scenes to see how it works. Heathrow Terminal 5 now uses the new 3D screening machines in the hold baggage screening system.
Terminal 5, which opened on March 27, 2008, was designed by Rogers, Stirk, Harbour & Partners. It was built at a cost of £4.3 billion. It is exclusively used by British Airways and Iberia and has the capacity to handle more than 30 million customers a year.
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.
Yes, there might be exceptions, but most often than not the airline won't wait. What you can do is to try to avoid missing your connection. But if you do miss your connection, don't worry, the airline will book you on a new flight for free (if it's an airline-protected connecting flight).
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. But mostly you don't have to do anything about your luggage.
Heathrow Terminal 5 handles more passengers than any other terminal in the UK – even when busy single-terminal airports are included. In September an average of 100,000 passengers arrived or departed each day from T5, which is the main hub for British Airways.
Assuming your flights are into and out of Terminal 5, you should be fine. I find recently into departures takes about 45-60 minutes. Then there is enough time to get to the gate… sometimes they are a bit away.
Ultimately, Terminal 5 was completed on time and under budget, which for many seemed like an impossibility given previous projects. The success of this project was, unfortunately, overshadowed by much of the events surrounding the opening day.
Until 2012 the terminal was used solely by British Airways. It was then exclusively used as one of the three global hubs of IAG, served by British Airways and Iberia until 12 July 2022, when Iberia moved all flights to Terminal 3, leaving British Airways as sole user again.
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.
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.
If you miss your connecting flightWe will automatically rebook you to the next available British Airways flight. The oneworld Global Support team will be able to help with your journey e.g. provide up-to-date travel information, new boarding passes and, if required, overnight accommodation.