Originally Posted by
cova
This is likely the situation. Coach has been sold out (FULL) for a couple of weeks - so any bookings on my flight are Y oversell.
That's unusual, though, since that Y oversell benefit is not very well known (people probably just pick another flight or carrier). You would think it would be in CO's interests to keep a few Y seats open in an F9 situation (i.e., undersell F to sell more Y if that's what they want to do).