AC 540 then AC 7058 at Toronto Pearson
Seattle (SEA) → Toronto → Montréal
Timetable, Toronto time
15:25AC 540 from Seattle (SEA) at the gate
09:00AC 7058 to Montréal leaves the gate
17 h 35 apart on the timetable, overnight
AC 7058 leaves 17 h 35 after AC 540 arrives on the timetable: more than half a day, so not a connection we count.