Originally Posted by
MSP2SEA
So, travelers who habitually book last minute fares (but don't pay full F), are basically competing for two or three seats in F, and those may be sold.
This is what seems to be happening to me. Due to the nature of my work, I don't know that I will need to make a trip until about 2-4 days out. Often, at that point, the flight I need is P2F2 or even P1F0. Usually, I get the upgrade, but considering the way it has been going I could reasonably expect to miss upgrades on 10-20% of my flights.