HU 7975 then AC 490 at Toronto Pearson
Beijing → Toronto → Montréal
Timetable, Toronto time
14:10HU 7975 from Beijing at the gate
17:30AC 490 to Montréal leaves the gate
3 h 20 apart on the timetable
The last days
HU 7975 and AC 490 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.