DL 2597 then AC 7065 at Montréal
Atlanta → Montréal → Toronto Pearson
Timetable, Montréal time
11:37DL 2597 from Atlanta at the gate
13:15AC 7065 to Toronto Pearson leaves the gate
1 h 38 apart on the timetable
The last days
DL 2597 and AC 7065 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.