Originally Posted by
ExpertFlyer Voice
So it would seem that LX is changing the class inventory based on the departure point of the round trip. It has nothing to do with the codeshare as the same thing is happening for LX metal flights as well. Unfortunately this only becomes apparent upon pricing a specific full itinerary.
Edited to add: We even tried to price this flight as a return directly on a GDS and it still wouldn't price the flight in V class. It may be something only available on the LX website.
LX will also return different availability on a GDS based on what is already sold or confirmed on a PNR. So a ZRH-MIL query on its own will return a set of availability that could be different when that query is made when there's already a NYC-ZRH segment, or even an outgoing, non-connecting, MIL-ZRH one, already booked. It's an O&D availability on steroids, in that the existing segment may not necessarily be a marriable one. In my limited experience I have not seen another airline do this.