I'd like to see one of JFK/ORD/DFW to YEG.
Air Canada has pulled out of the YEG-USA direct market, leaving WestJet and American carriers to fill the void. It seems that United is doing really well out of YEG, as is WestJet (codeshares with AA). Both carriers offer numerous daily mainline flights out of YEG to the states, serving EWR, IAH, DEN, LAX, PHX, LAS, and othes. Also, US Airways is flying up to 2 daily A320s to PHX, along with express flights to MSP on Delta and SEA on Horizon.
I think if WestJet and AA worked out good connections on both sides, there would be real potential. YEG is saturated with *A to the states, and it would be interesting to see some Oneworld action here...something non existent since the days of Canadian Airlines!