It's funny that someone asked this question.
I dream about flying all the time. Waiting in airports, boarding planes, doing the upgrade dance at the gate, sipping wine in First Class, the whole thing.
Doesn't bother me though. It's my favorite thing in the world to do, so doing it while dreaming means I get to enjoy more of it, and it's a lot cheaper.
P.S. Haven't had a flight cancelled in dreamland yet.
P.P.S. After posting this I noticed it is a women's forum. Sorry. I just landed here from the FT main page where this thread was featured. I'll just sneak out the back door.