Originally Posted by
badatz
I am not flying to LHR but to MAN. SEA-LHR is nonstop therefore not ok, but SEA-MAN is not non stop as you change planes in LHR and it is a different flight number, so it should be OK
No, it is not OK.
First, the rule reads transatlantic flights, with no mention of the number of stops:
Originally Posted by aa.com
British Airways' transatlantic flights to/from the U.S. are not valid for AAdvantage mileage accrual or redemption.
and second, there is no SEA-MAN flight as such; there is a SEA-LHR flight (not OK) which connects with a
different LHR-MAN flight (OK).