Originally Posted by
JDiver
LHR doesn't announce gate numbers until close to boarding. That can be challenging if a passenger is far from the announced gate. Glad you made it OK.
Gate swaps at LHR are common because there are insufficient gates for the number of flights, so if someone lands late they lose their assigned gate and someone else gets it.
If you go to somewhere like NRT there are about five gate change announcements per hour. I think this could be even more confusing/annoying than not knowing until is definite.