Originally Posted by
davetravels
Maybe the flight wasn't overbooked/oversold at the point when she checked in. Don't forget that, a flight's availability can teeter totter back and forth between Y0 and Y1 or more frequently, depending on operational situations throughout the day.
I guess that's possible - I only mentioned it because we were sitting on our phones checking in together. Mine went through a few seconds before hers. I wouldn't have thought that the inventory would shift so quickly but on second thought it could.