I have two upcoming intra-Asia CX flights ticketed in N and S classes. The flights are booked on the same ticket as flights to and from Asia on AA. Ideally, I would like to receive AA miles for the CX flights, but I understand CX does not offer AA miles in these classes. I'd at least like to get something for the CX flights and I believe I can get 25% BA Avios.

Is there a way that I can receive the BA Avios miles for the CX flights while still receiving AA miles for the AA operated flights (in other words can I choose to credit miles to different OW programs on a per leg basis as opposed to a per ticket basis)? Assuming I can credit the CX flights to BA Avios program, is there a way I can do so but still have the CX flights show my OW status for pre-boarding etc.?

Thanks,

Yes you can on a per leg basis.

Safest way to do it is keep your AA number in the booking to get seat selection, lounge invite, priority baggage etc.

Then when you are safely in the lounge ask the CX staff to remove your AA number, then add your BA number and print a new boarding pass.

Interesting info here:- http://www.flyertalk.com/forum/briti...l#post20709802

Call AA and make sure your AA number is on your bookings.
The CX flights can have your BA number.

If you booked res thru travel agent, they can specifically put whatever FFP you want for whichever segment you want. Its harder to do when booking through websites.