Originally Posted by
Xandrios
The upgrade to F may actually be rather interesting for longer flights. At ± 65K for most regions (From EU) thats kind-of a steal if you can find a reasonably well priced economy ticket thats eligible.
Unfortunately, the *A upgrade to F is from C (again, booking classes vary by airline), so while it may still be decent value, it may not be as good of a deal as if you could upgrade from Y.