Originally Posted by
joshwex90
What exactly is CO's EUA policy regarding BF flights? e.g. if I'm on flight booked in a regular/discount economy class (NOT Y/B/M) and I'm OP Gold, and there's space available in BF, do I have a shot at being upgraded?
There is no EUA on BF flights. In order to upgrade you need to pony up some miles and a fee depending on destination and fare class.
So, your shots of being upgraded are zero unless you pay for it.