AA 4556 then AC 7058 at Toronto Pearson
New York LaGuardia → Toronto → Montréal
Timetable, Toronto time
15:49AA 4556 from New York LaGuardia at the gate
09:00AC 7058 to Montréal leaves the gate
17 h 11 apart on the timetable, overnight
AC 7058 leaves 17 h 11 after AA 4556 arrives on the timetable: more than half a day, so not a connection we count.