Originally Posted by
rrgg
You don't have to look that far. It's restated in the terms and conditions of the credit card application:
4. BA Miles and Tier Points cannot be earned or redeemed on American Airlines transatlantic flights. However, please note that BA Miles may be earned but not redeemed on American Airlines/British Airways codeshare services between Manchester and Boston and Manchester and Chicago when the booking is made under the BA code. American Airlines is a registered trademark of American Airlines, Inc.
https://www.britishairways.com/trave...club/_gf/en_us
Thanks,
rrgg. Guess I'll use BA from SEA and balance for HI on AA.