Originally Posted by bedelman
I agree that codeshares increase costs. But even so, the BOS-DXB route still shows some puzzles. BA and LH (both publishing $592 fares) don't need codeshares at all. But then UA has a $702 fare and Northwest a $740 fare. These do involve codeshares, yet they still manage to beat AA's price by $450+.
Yes, but I believe UA and LH revenue share across the Atlantic and KLM/NW (I believe it's been retained after the KLM merger with Air France) were the first carriers to revenue share across the Atlantic. So I think the answer is, KL and LH may get less per passenger on the codeshare BUT they get a portion of the revenue across the Atlantic.