Originally Posted by
mclachlan4321
What happens if you book separate tickets, and you miss your connection with BA, due to a late inbound from the separately booked ticket? And if this isn’t a LON airport?
That depends on the policy of the late-delivering carrier. For example, AA's policy is not to protect across separate tickets,
unless the AA ticket and a separate tickets on a oneworld carrier are contained in the same PNR. There are some travel agents who are able to book separate tickets on a single PNR. One of them posted recently here on FT about his ability to do.
Edited to add: Here's the thread I was thinking of. See, especially, Posts 16-20, and 23:
https://www.flyertalk.com/forum/alas...tickets-2.html