Originally Posted by
Nomoredelta
Why do you think the Delta program is superior to United? It looks a bit better the way I’ve understood it, seems they do upgrades on international flights. 90% of my travel is international, so outside of the few GUC’s, there is no value to the rest of the Delta program to me. If I can transfer my status to United, will give them a year to show me, and if that doesn’t pan out will just give up on the whole loyalty thing.
United uses a certificate based system currently for international flights. They're switching to a points system in December but international upgrades aren't just given if there is an empty seat.