CX 3291 then AC 402 at Toronto Pearson
Chicago O'Hare → Toronto → Montréal
Timetable, Toronto time
08:09CX 3291 from Chicago O'Hare at the gate
08:00AC 402 to Montréal leaves the gate
23 h 51 apart on the timetable, overnight
AC 402 leaves 23 h 51 after CX 3291 arrives on the timetable: more than half a day, so not a connection we count.