Originally Posted by
rabbits5
Pre COVID I was on a HKG-MEL flight in Y+. I was flying as a CX SL on an AS award ticket. When I asked at check-in, I was able to move forward to an earlier flight which had 1 Y+ seat left.
I was traveling on an AS award ticket in J and they would not allow me to change to an earlier flight this week

. Was flying HKG-SIN (which had award space on all flights during day of departure), but I also don't have any status with CX/OW. If it had been ticketed by CX, they would have changed it without issue.
Also: AS and BA restrict last minute award space on CX. AA doesn't, so this is a great perk if you have AA miles.