AC 1940 then AA 4730 at Toronto Pearson
Fort McMurray → Toronto → Washington National
Timetable, Toronto time
05:56AC 1940 from Fort McMurray at the gate
12:44AA 4730 to Washington National leaves the gate
6 h 48 apart on the timetable
The last days
AC 1940 and AA 4730 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.