Originally Posted by
San Gottardo
I understand upgrade vouchers do not work with codeshare flights, and work only on AF-operated or KL-operated flights. What about an itinerary CDG-AMS-DAR, where CDG-AMS is operated by AF and AMS-DAR is operated by KL, and the entire trip is sold under a KL code?
Those code-shares are OK as you stay "within AFKL family". No problem to use your upgrade vouchers in this situation.