Originally Posted by KCRYSTAL

My question - maybe some speculative answers...
Booked SEA-ORD-SEA flight, 3 months ago. About $500, T-class. Departure is next Friday. Immediately applied RPUs, and waitlisted since. In July, all 1st class seats seemed available (using seatmap as an imperfect proxy), and every week a few disappeared.
No choice re. flights, since I have connections. Early am flight out of SEA.
Is it "normal"/expected to have that many 1st class seats gone so soon? I suspect they must be $-upgrades at booking?

I just checked again. There is one 1st class seat left. $587. Economy is $488. If that delta has been in place since I booked, I just answered my own question.
Oh - I can also upgrade for $1,211 right now (just the outbound, return can be upgraded for $485). I guess that is why I am "leaving United".