Originally Posted by
Yush
Yep, but a pinned wiki I found says that BA doesn't interline anymore, when tickets are separate.
That's why I asked for clarification of "seperate tickets" vs. "one ticket.
It's confusing because there are multiple things in play here - BA don't interline on BA to BA connections any more when they are on separate tickets. Whether they interline with other airlines on one ticket is a different question - from a cursory google it looks like they will do it for you, e.g.
https://www.quora.com/Do-British-Air...-work-together