Originally Posted by
cloney
I've seen other flights at "Unavailable" and others at "Sold out". Just wanted to know since this is literally the only flight out of 7 thats unavailable and no other flight for within 7 days has that. I just need one seat to book the comp pass...
Well you just got two extra days I guess..

Or revert to the original plan.
Sold out means there's no possible way on a single leg. I don't ever recall seeing this though. On a multi leg they just show unavailable if either leg is sold out.
One could try a custom connection through another city unless it's International.
If it's an International leg they don't normally oversell those. Yet the domestic connecting leg could be.