Originally Posted by
Dr. HFH
Doesn't this only apply to flights between U.S. and LHR (but not LGW, STN, etc.)?
No, the prohibition does not apply from specific airports but from the UK-US travel: BA routes transatlantic to/from US are not valid for AA mileage accrual or redemption - wish it were otherwise, and that may be possible in the future, as Hiddy points out.