Originally Posted by
Microwave
The heart of this question is whether BA will through check the bag from your first origin airport, and that question is best answered in the BAEC forum. I will shift this thread there. If there are further questions about AA's handling of the APD question, probably best to discuss that in the extant AAdvantage forum thread.
~Microwave
AAdvantage forum co-moderator
Thanks mod!
BA won't, as many in the BA forum will confirm, much to our annoyance.