AC 1797 then PD 9931 at Toronto Pearson
Punta Cana → Toronto → Montréal
Timetable, Toronto time
23:20AC 1797 from Punta Cana at the gate
09:00PD 9931 to Montréal leaves the gate
9 h 40 apart on the timetable, overnight
The last days
AC 1797 and PD 9931 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.