Originally Posted by
johan rebel
KL of course has no F class, so unless an upgrade voucher could be used on AF as well, it would be tricky to use for those who book J for longhaul travel.
Johan
I agree - there will always be a limit and if one systematically travels J and always KL or destinations not served with P on AF, or one always travels P, then they will end up not finding this that useful. However, I would venture a guess that the immense majority of travellers (including frequent travellers) would find consider this one of the best CS gestures available.