DL 4919 then DL 1685 at JFK
Nashville → New York → Orlando
Timetable, New York time
13:48DL 4919 from Nashville at the gate
15:05DL 1685 to Orlando leaves the gate
1 h 17 apart on the timetable
The last days
DL 4919 and DL 1685 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.