London Heathrow: airside transit Terminal 4 to Terminal 3

Do you have to pass through immigration when arriving at Terminal 4 and departing from Terminal 3 on TWOV?

The layover is just over 3 hours. Is this sufficient time to make a connection?

Flight is SVO-LHR-LAX on multiple carriers.

PS: In case of different carriers, how do I arrange the luggage to be transferred to the next flight without passing through immigration?

Thanks.

uk customs-and-immigration transit lhr

Best Answer

You can transfer between all the terminals at LHR without clearing immigration, so if your ticket is in a single booking or you only have hand luggage, you do not need to clear immigration

With separate bookings and checked luggage, you'll have to clear immigration to collect the luggage, which you can do on your US visa.

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Are Terminal 3 and 4 connected at Heathrow?

There is no walkway T3 to T4 as they are on other sides of the airport. With the coming of T5, the Heathrow Express now only goes to Heathrow Central (covering terminals 1, 2 and 3) and T5. To get to T4 from T3 you have to get the Heathrow Connect from Heathrow Central as Alanrow suggested.

Can you walk from Heathrow T4 to T3?

You can walk between Terminals 2 and 3 via the pedestrian underpass. The route is well signposted and can be followed on our interactive Heathrow map. If you have an impairment or mobility difficulties, find out how to request assistance.

Can you travel between Heathrow terminals airside?

Can I travel between terminals at Heathrow? You can travel between terminals at London Heathrow. Passengers with flight connections can use the airside connection buses to reach their onward terminal and other passengers can ride the train outside of the secure area.

Do I have to go through security again for connecting flight at Heathrow?

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.

Heathrow Terminal 4 Transit to Terminal 2 - 2020

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