Originally Posted by
javabytes
OP is the booking class that is necessary for upgrades into business class on Delta flights using GUCs.
Are you on DL 72 or DL 74 ATL-AMS on 11/29? And DL 73 or DL 75 on 12/23?
DL74 (this segment actually leaves on 11/28, arriving 11/29)
DL73 on 12/23