DL 5863 then DL 3843 at Detroit
Indianapolis → Detroit → Buffalo
Timetable, Detroit time
13:28DL 5863 from Indianapolis at the gate
17:56DL 3843 to Buffalo leaves the gate
4 h 28 apart on the timetable
The last days
DL 5863 and DL 3843 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.