Originally Posted by
daftboy
Having recently booked a BA codeshare operated by AA, I was given the option of being transferred directly to my booking on aa.com, with access to the normal functionality (including seat selection) there.
It could be a trial thing with a limited rollout (this was LHR-LAX on AA's new 77W), but I found it a very useful feature.
It is not a trial. This function is available only when the flight is booked as BA code-share. If the flight is booked through BA but as a prime AA flight number then one needs to get the AA (Sabre) PNR and log-in into the booking on aa.com.