Originally Posted by
TerryK
[emphasis added]
The OP is trying to figure out if a flight
will be oversold
before he/she purchases a ticket on that flight. He/she needs a crystal ball.
You usually could only purchase Y/B tickets on an already oversold flight. It will be very expensive.
Calling UA is still the best way. As noted, they only charge you to book the ticket, not to ask what ticket to book.
