I can only give you my amateur opinion, but I think it would be a bad idea. Fully open skies + cabotage would pretty much kill off airlines like Air Canada, and maybe even WestJet. The U.S. carriers would only fly what is profitable to them, flooding routes like Toronto-Vancouver, Calgary-Toronto, Vancouver-Tokyo, Toronto-London, Montreal-Toronto. Air Canada et al, having lost their bread-and-butter market to competition from larger carriers, would go bust. And I highly doubt that the U.S. carriers would continue the greater part of the extensive regional and international network. You could say goodbye to routes like YYC
, and probably most YVR
-Asia flights as well.
Again, just my personal amateur opinion, but I think Canada is just too dependent on its air transport network to allow this kind of thing to happen.