F8 620 then PD 9921 at Toronto Pearson
Calgary → Toronto → Ottawa
Timetable, Toronto time
00:05F8 620 from Calgary at the gate
07:00PD 9921 to Ottawa leaves the gate
6 h 55 apart on the timetable
The last days
F8 620 and PD 9921 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.