UA 613 then AC 615 at Dulles
Lagos → Washington → Toronto Pearson
Timetable, Washington time
05:55UA 613 from Lagos at the gate
12:27AC 615 to Toronto Pearson leaves the gate
6 h 32 apart on the timetable
The last days
UA 613 and AC 615 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.