AA 3857 then DL 703 at Boston
Syracuse → Boston → Washington National
Timetable, Boston time
14:27AA 3857 from Syracuse at the gate
18:00DL 703 to Washington National leaves the gate
3 h 33 apart on the timetable
The last days
AA 3857 and DL 703 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.