I had checked the availability for a RG flight 5 hours ago and it was wide open as per the availability tool- F7 A6 C7 D7 Z7 Y7 B7 M7 H7 Q7 V7 L7.... However when I checked in I was told that the flight is oversold in all classes and that they will have to offload people. It is probably because the airline assumes that people don't turn up and keep the flight oversold, because it is very unlikely that too many people in all classes would suddenly decide to fly on the spur on X-mas eve.
Any thoughts?
Merry X-mas