Change Seat on BA flight after AA flight (within 24 hrs of flight)
I have a booking with an AA flight connecting to a BA flight. I want to change my BA seat, but it's now check-in time. I click the check-in button, and it want to take me to the AA website, where I can change my AA flight seat. How do I manage to change my BA seat? (For various reason I don't want a boarding pass, but I don't mind checking in - in fact the AA site says I've already done that.)
rb211.