Originally Posted by
pitz
Yup present both tickets at check-in at YUL, and they'll be attached, your bag checked through, and your BP's issued all the way to FCO.
You might even have a case to get the YYZ AIF refunded down to the $4 "connecting" level rather than the $25 departing fee by sending in both tickets to refund services after the flight..
Another interesting question - will OP get the J dom -> int'l connection service?