Originally Posted by
Guy Betsy
Thats the biggest problem with codeshares. Especially when one airline locator doesn't exist on the other.. ie BA codeshare on AA metal. Your amadeus booking number won't work on AA. And as a codeshare, you won't have a Sabre number either.
There
is a Sabre number. You just have to get it. It is normally on the travel information paperwork near the details for that flight. Otherwise, call BA and ask for it.