Originally Posted by
sydneyracquelle
I have done this many times. Air Canada allows seamless travel via YYZ whereby your bags transfer automatically and you can bypass CDN Customs if you are immediately flying out of Canada in T1.
I think it is a safe assumption that it is a domestic connection, which requires clearing Canadian Customs no matter the carrier. That said, T3 can get dicey and take a while. I have flown through in a matter of moments, and spent a good 30-40 minutes when I arrived behind China Eastern and Saudia (which no longer serves YYZ). I would say 90 would be the MINIMUM with which I would be comfortable.
I have had Westjet waive fees, but never assign their Plus/Premium seating as a DM.