AA 4623 then AC 7058 at Toronto Pearson
New York LaGuardia → Toronto → Montréal
Timetable, Toronto time
13:01AA 4623 from New York LaGuardia at the gate
09:00AC 7058 to Montréal leaves the gate
19 h 59 apart on the timetable, overnight
AC 7058 leaves 19 h 59 after AA 4623 arrives on the timetable: more than half a day, so not a connection we count.