Hi there, at Air Canada all wide bodies fly to Europe
B767,787,777 and A330 and even the A319 on one route
The typical layover is around 24 hours at AC mainline and 48hrs at AC Rouge, due to the non-daily frequency to those destinations (some are 24 some 72hrs)
As to how long it takes to "get there"..... With Air Canada Rouge, our seniority list has been highly fragmented, meaning that traditionally senior positions are now new hire positions (AC Rouge B767), and all other wide body positions go far more junior now than in the past.
A couple of years in and holding WB mainline positions will be the norm.
Hope this helps, lots of hiring in the future.....