Originally Posted by
PETER01
you can check in right up to 45 mins before departure at Heathrow (1 hour if checking in bags IIRC but I'm not 100% sure of that) but I certainly wouldn't recommend that! It will start to get busy at 0600 but not at the F desk I suspect if you are using that.
Don't forget BA behaves worse than Ryanair to latecomers, you'll be offloaded if you don't reach the front of the security line at least 35 minutes before the scheduled departure. Even if the plane is late.