Originally Posted by JimInOhio

In larger Canada airports, making a US --> INTL connection isn't all that different than a regular domestic connection in the US. Just be sure to have your passport in case you need it for one of the steps. The last I remember doing this (at YYZ though YUL is probably the same), I don't think I used any kiosk at all. Basically just followed the signs to my connecting flight.