Up here, we get a 90% discount with Air Canada but it is standby so it's pretty much useless. We had a deal with WestJet where you could go one way to either Vancouver or Las Vegas for $75 but it was again standby.
Had one fellow serf use the WestJet deal to Vegas and ended up being stuck at the airport for 23 hours, waiting for a flight back home. Pretty much got off the plane and went straight to work, after his flight.