Originally Posted by
David-A
Trying to do an airside tansfer when you don't have an onward boarding pass for T4 is a complete non-starter no matter what.
Not in my experience - a copy of your itinerary will suffice. I've done this regularly when connecting BD-CO at LHR, the CO desk is in T4 and I only got a boarding pass there.
I should add that this isn't relevant for what the OP is saying anyway
