Originally Posted by
corporate-wage-slave
If arriving into T5 with no checked luggage and on an international arrival (not UK or Ireland) then you can take the Flight Connection bus airside from T5A and T5B to T2 and then exit the UK Border there, rather than T5. However the airside bus service winds down after about 21:00 hrs.
I’m flying in on a domestic so I won’t be able to use this trick this time but don’t you ‘sometimes’ get asked to show your onward boarding pass in order to get to the bus transit area?