Originally Posted by
jackfrost
I have been Diamond since delta started the new class and it is far form consistent.
Has very little to do with inventory. There are other elements at play here.
I have been on flights this year, that over 50% of the bussiness class cabin was empty at boarding time, and I was holding a Y class fare, and NEVER pre-cleared unitl the gate. They cleared everyone at the gate.
Yet I have other flights that with a Y ticket I get upgraded at time of purchase. Its is never consistent.
It has everything to do with inventory: V inventory for upgrades. You're right that there's not a ton of correlation with F or Y inventory, but the timing of upgrade processing has everything to do with if/when DL makes V inventory available for upgrades.