SQ 28 then AC 120 at Vancouver
Singapore → Vancouver → Toronto
Timetable, Vancouver time
08:40SQ 28 from Singapore at the gate
15:30AC 120 to Toronto leaves the gate
6 h 50 apart on the timetable
The last days
SQ 28 and AC 120 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.