AC 7180 then AC 7198 at Montréal
Washington → Montréal → Halifax
Timetable, Montréal time
10:00AC 7180 from Washington at the gate
13:00AC 7198 to Halifax leaves the gate
3 h apart on the timetable
The last days
AC 7180 and AC 7198 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.