It makes sense that airlines would want their mobile apps to work with the latest tech. And so Air Canada and WestJet have made their apps Apple Watch-ready. For Air Canada, you can see the status of your flights departing within 24 hours, get a countdown to your boarding time from Glances, and get notifications for checking in and boarding your flight.
For WestJet, you get more of the same as well. You can monitor saved flight statuses as well as details in Glances. It also has a countdown timer for your next WestJet flight. Both apps work with Passbook and are available for free download on the Apple App Store.