Originally Posted by
Courmisch
Advanced seat reversations works for AA codes on BA metal. But codesharing between those two is not free of problems.
BA cancelled my AA-coded (obviously!) LAX-LHR. BA MMB would not me do anything, as the BA PNR no longer had any BA flights. Meanwhile AA still thought that I should check in on-line with BA, and wouldo not let me do anything with the AA locator.
Thanks for bringing that to my attention. My BA PNR is also lacking the first flight, which can be seen on AA.com. How did you get it resolved? Was the booking split into two booking codes? The Finnair app does display the first segment.