Originally Posted by
sierranevada
It must still be having problems. I did a dummy award booking to check fare class and upgrade availability and it is telling me that A320 has C,D & Z availbility!!! Yeah, right
Actually, that is possible. If an A320 is used to fly the domestic portion of an international flight (e.g. UA938 SEA-ORD-LHR), then that domestic flight may show business class availability.