Originally Posted by chgoeditor
In a few weeks I'm arriving at LHR in Terminal 3 and connecting to a BA codeshare flight operated by GB Airways (destined for Morocco) flying out of Terminal 1. I just realized that in all my years of flying into LHR, I've never actually made a connection there. Can you go from T3 to T1 without having to clear customs?
Thanks.
Yes. It's a bit of a walk and you'll use a bus, but you won't have to clear immigration/customs.