Originally Posted by
sbm12
I agree that this sort of change is bad for folks in the UK (and great for me in the USA), but my understanding is that the airlines DO update their exchange rates daily, or at least that they are governed by IATA and are loaded into the GDSes somehow as a conversion to NUCs or something like that.
I'm certainly no expert either, and I know there's different IATA exchange updates (monthly/quarterly) for differing purposes, but I've always understood that they update them for fare calculation once a week. Compiled on a Tuesday for use from Wednesday, I believe.