AC 1559 then AC 7057 at Montréal
Newark → Montréal → Toronto Pearson
Timetable, Montréal time
17:01AC 1559 from Newark at the gate
21:15AC 7057 to Toronto Pearson leaves the gate
4 h 14 apart on the timetable
The last days
AC 1559 and AC 7057 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.