Hopefully I can grab the attention of a BA employee.
I'm travelling from NCL to LHR on the special B744 flight BA are laying on 26th July. However, I'm travelling back from CDG to LHR on the 25th July, and will miss a considerable part of the online check-in. I'm worried that by the time I manage to check-in, the window seats will have gone.
If I was to turn up at LHR T5 the day before my flight was due to leave, and ask to be checked in for a NCL-LHR flight.. would they be able to do it from there?