DL 2370 then DL 2517 at Detroit
Memphis → Detroit → Nashville
Timetable, Detroit time
09:15DL 2370 from Memphis at the gate
20:40DL 2517 to Nashville leaves the gate
11 h 25 apart on the timetable
The last days
DL 2370 and DL 2517 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.