Originally Posted by
DCA-SEA
My only AS-to-BA experience was in F on an award ticket, so we had advance seat assignment for free. However, the boarding passes AS printed for us at SEA were not acceptable by BA for some reason - the BA agents at SFO had to print us new ones.
(Also, there was some issue with our reservation - it turns out that it was good we had a 3+ hour layover, because it took them most of an hour to solve our issue. They brought our BP's to the F lounge.)
When another airline issues my BP, I always check with the connecting carrier to see if everything is ok with the BP, and it is always reissued.
NOTE that although I don't know particularly what happened with the "Also" above, but if AS has to reissue a ticket with partners, sometimes the reissued ticket numbers don't make it to the other carrier. Always be armed with your final ticket #s on your person.