DL 5771 then DL 1787 at Detroit
Indianapolis → Detroit → Washington
Timetable, Detroit time
18:14DL 5771 from Indianapolis at the gate
14:57DL 1787 to Washington leaves the gate
20 h 43 apart on the timetable, overnight
DL 1787 leaves 20 h 43 after DL 5771 arrives on the timetable: more than half a day, so not a connection we count.