Originally Posted by
djwam
Hum,
And do you think getting out at the arrivals and coming back through check-in would give me better chances ? On one side, I'd lose a bit of time, on the other side the guys at check-in are probably more used to putting people on earlier flights ...
Per the above, check in won’t help (unless there are IRROPS and even then I’m not sure). You will have to go to the BA ticket desk in the departure hall. I doubt you will succeed, unless the later flight is overbooked. But you’ve nothing to lose given you have lots of time.