DL 4664 then DL 5766 at JFK
Nashville → New York → Norfolk
Timetable, New York time
13:45DL 4664 from Nashville at the gate
15:05DL 5766 to Norfolk leaves the gate
1 h 20 apart on the timetable
The last days
DL 4664 and DL 5766 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.