AC 2039 then AC 8644 at Montréal
Moncton → Montréal → New York LaGuardia
Timetable, Montréal time
12:10AC 2039 from Moncton at the gate
17:35AC 8644 to New York LaGuardia leaves the gate
5 h 25 apart on the timetable
The last days
AC 2039 and AC 8644 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.