The post asked for
lucrative routes
I hear that

YYC no longer has flights to SFO, along with no more PSP or ORD

All true, although UA still operates 4x? daily service to SFO and ORD and WS does a limited service to PSP. AC hardly does any TB out of YYC anymore, I think just LAX, IAH and SEA are the regular ones, maybe PDX too.