AA have the same policy as BA. There is a very long thread on the AA board on this very subject.

With all due respect I imagine this was quite a while ago and things in the airline industry have changed immensely. As a kid I used to love going to the reference library on a Saturday afternoon and getting the 2 Reed telephone directory worldwide airline timetables and looking at the MCTs at the end, indeed I always thought IATA set them for their member airlines with some carriers tweaking them when they could undercut.

Happy to proved wrong but I can’t find any reference to offline minimum connection times hence my request to be pointed to such sources. Indeed as posted up thread at Heathrow there is no such thing as connecting passengers on two separate tickets. A cursory look at some major carriers websites on check in indicates that if you don’t check in on time you most likely won’t get to travel..there is no reference excepting passengers with offline minimum connecting times.

The only thing that I can see which remotely comes close to this is the Gatwick Connect product that they launched in 2013 to encourage people to change planes there. This assists with check in and makes the process slightly easier if you buy the tickets through them, They offer a Connect Protect product where the airport will cover the additional expenses of a missed departure.

Conscious this is taking this topic off thread as BA don’t/shouldn’t through check bags on separate tickets so not sure if a separate thread needs to be created and moved to there,

FWIW I think it’s a bit naff that airlines don’t offer this inter alliance or on their own metal especially where reward flights and revenue flights can’t be combined. I’ve been lucky that AA did it for me but it wouldn’t have made a major issue had they not as I could have reclaimed my bag in Dublin gone through customs to the check in desk and deposited it for London City.