Originally Posted by
btonkid12345
It has everything to do with it. Despite how they choose to splice up inventory via different marketing carriers, if it's a single Delta plane and I'm a Delta Medallion and can't get a seat or a silly C+ "upgrade" then it is not seamless. Period.
Agreed. There is just no desire to make it happen. They've invested in making seat reservations work on codeshares, there is no reason why upgrades couldn't be handled as well. Obviously it would take a small IT investment so it won't happen.