AA 3675 then AA 578 at DFW
Bismarck → Dallas-Fort Worth → New York JFK
Timetable, Dallas-Fort Worth time
09:40AA 3675 from Bismarck at the gate
16:19AA 578 to New York JFK leaves the gate
6 h 39 apart on the timetable
The last days
AA 3675 and AA 578 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.