Originally Posted by channa
A5 Y2
So I doubt it's overbooked.
The reason you said CO.com won't sell you a Y ticket is because the remaining First (D) seats are the same price as the Economy (Y) seats. So CO.com offers you the First Class ticket.
If you force CO.com to sell you a Y ticket, it will.
You are right, I wa able to force it to sell 2 coach seats for $609 each when F was $599. So I guess the only way it is overbooked is if they were willing to sell more than 7 seats above capacity.