Originally Posted by pinniped

With the high yields on so many transborder (US/CA) routes and easy ability to serve with non-ETOPS 737s, I'm surprised they haven't set up shop in YYZ, YVR, YUL, YOW, YYC, and maybe two or three other Canadian airports.

Is it excessively difficult for a new carrier to get certified to operate in Canada? All of the U.S. legacies are there, plus a few smaller players, so it doesn't seem infeasible for WN to do it. It's one of the few places I can think of where there is still ample pricing room for a true "Southwest effect" - bringing down crazy-high fares and still very profitable for WN.