Originally Posted by
FlightNurse
would be interesting to hear back from the OP so he can explain if the correct bucket is available, just on a side note, I look at flights between YYZ - LAS, mid 600 for Y and 1,0xx for FC, not too sure if paying the upgrade fee and miles is a good choice of miles and co-pay.
With a fare difference of ~$350 - $400, if you value the miles @ 1.5cpm, then its probably a wash if there's immediate C availability. However, paying for F outright guarantees you the seat up front and COS bonus.