Originally Posted by
daph
Luckily, it did happen to fit under the seat in front of me, but what if it hadn't?
It would have had to be gate checked if it wouldn't fit in the overhead bin or underneath the seat in front of you. And, as noted, if you are BA Blue, you don't have Oneworld status and aren't entitled to boarding with any of the AA elite levels, as your status is not equivalent to any of AA's elite levels.