AC 812 then TP 9016 at Lisbon
Montréal → Lisbon → London Heathrow
Timetable, Lisbon time
10:40AC 812 from Montréal at the gate
15:05TP 9016 to London Heathrow leaves the gate
4 h 25 apart on the timetable
The last days
AC 812 and TP 9016 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.