TS 681 then TS 16 at Montréal
Lisbon → Montréal → Ottawa
Timetable, Montréal time
12:15TS 681 from Lisbon at the gate
21:00TS 16 to Ottawa leaves the gate
8 h 45 apart on the timetable
The last days
TS 681 and TS 16 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.