Originally Posted by
sdix
I am a UK/US duel citizen living in the US
My APIS info is my US passport.
However when flying to the UK (or anywhere outside of the US) I present my UK passport at check in with no issue.
Does the AA app or website not have any expectation of you having an
ETA for entry into the UK when your APIS info is a US passport? Also, do you not check in online?