DL 5771 then DL 3847 at Detroit
Indianapolis → Detroit → Buffalo
Timetable, Detroit time
18:14DL 5771 from Indianapolis at the gate
14:00DL 3847 to Buffalo leaves the gate
19 h 46 apart on the timetable, overnight
DL 3847 leaves 19 h 46 after DL 5771 arrives on the timetable: more than half a day, so not a connection we count.