AC 2367 then AC 430 at Toronto Pearson
Halifax → Toronto → Montréal
Timetable, Toronto time
15:55AC 2367 from Halifax at the gate
22:00AC 430 to Montréal leaves the gate
6 h 05 apart on the timetable
The last days
AC 2367 and AC 430 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.