DL 3757 then DL 4896 at Detroit
Milwaukee → Detroit → Indianapolis
Timetable, Detroit time
09:16DL 3757 from Milwaukee at the gate
13:15DL 4896 to Indianapolis leaves the gate
3 h 59 apart on the timetable
The last days
DL 3757 and DL 4896 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.