Originally Posted by
canadiancow
This is what I don't understand. Every fare is eligible for upgrade.
Are you asking for the credit/add-on amount? Whether there's R space? Something else?
sorry for the confusion. I think I’m asking for “R space” (albeit I think there are some rev management sorcery involved).
AC will tell you whether it can be immediately eup-ed, or you will only be waitlisted.