Originally Posted by
Madison Guy
Yes, but does that revision help the OP should that happen? As I understand it, OP has a BA ticket ORD-LHR and an AA tkt MSN-ORD to get there If it were reversed, AA could offer to help on their airline connecting in from a OW carrier if BA were delayed, but can they "force" BA to help out if AA is delayed going to ORD? Or can they, due to the joint venture agreement? (Never reallly understood all that...) Thanks for any clarification. (Not to confuse the original point - this protection question has nothing to do with checking bags through on separate PNRs.)
Where protection is offered, it is the responsibility of the late-delivering carrier to protect the passenger. So if MSN-ORD were cancelled or substantially delayed, causing a misconnection at ORD, it would be AA's -- not BA's -- responsibility to get the passenger to LHR.
The more interesting question is what happens in the reverse situation, where a delayed BA flight into ORD causes a misconnection to the ORD-MSN flight. AA policy says that the carrier causing the misconnection shall rebook the passenger. But AA policy cannot bind another carrier. In such a situation, I suspect that AA would either rebook the passenger on its own, or would liaise with BA to get the passenger rebooked.