AC 8459 then AC 7058 at Toronto Pearson
New York LaGuardia → Toronto → Montréal
Timetable, Toronto time
13:33AC 8459 from New York LaGuardia at the gate
09:00AC 7058 to Montréal leaves the gate
19 h 27 apart on the timetable, overnight
AC 7058 leaves 19 h 27 after AC 8459 arrives on the timetable: more than half a day, so not a connection we count.