DL 5771 then DL 1454 at Detroit
Indianapolis → Detroit → Washington National
Timetable, Detroit time
19:10DL 5771 from Indianapolis at the gate
15:50DL 1454 to Washington National leaves the gate
20 h 40 apart on the timetable, overnight
DL 1454 leaves 20 h 40 after DL 5771 arrives on the timetable: more than half a day, so not a connection we count.