Originally Posted by
ethernal
If you saw a W fare for sale on delta.com and did not get an upgrade, then that would be different. But I have not seen a confirmed example of this - ever. I would love, love, love it if Delta did capacity controls on W inventory as it may mean that I would actually get a C+ seat every once in a while - but as far as I can tell they do not do it. Maybe they will start doing it soon but as of right now it doesn't appear that they do (at least in any sort of systemic way).
I have been in this situationn many times over the years on TPACs and TATLs. The answer I get whenever I talked to the DM desk is that revenue have not released the seats.for upgrades.