Originally Posted by
akonradi
While SWUs are only valid on transatlantic flights, miles can be used to upgrade from a AF W/S fare basis to Affaires on all AF flights worldwide with O availability.
I concur on the SWU usability. However, I am not certain that you can ug worldwide with miles on AF per
http://www.delta.com/skymiles/use_mi...ds/index.jsp#7
Can anyone confirm either way?