DL 3915 then DL 4966 at Detroit
Syracuse → Detroit → Norfolk
Timetable, Detroit time
10:54DL 3915 from Syracuse at the gate
14:33DL 4966 to Norfolk leaves the gate
3 h 39 apart on the timetable
The last days
DL 3915 and DL 4966 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.