Originally Posted by
Creole Spirit
Interesting - I didn't even know that there is any K or T-class fare at all that allows GUP-upgrade.
I was told here in Germany that it requires at least a Q-class fare...
The change to allow T/K fares for GUP was after they were introduced as FlexiSaver with 75% miles earning - maybe 3 years ago? I also feel that Q fares increased compared to previously.