DL 2476 then DL 5446 at Detroit
Washington National → Detroit → Cincinnati
Timetable, Detroit time
14:03DL 2476 from Washington National at the gate
14:00DL 5446 to Cincinnati leaves the gate
23 h 57 apart on the timetable, overnight
DL 5446 leaves 23 h 57 after DL 2476 arrives on the timetable: more than half a day, so not a connection we count.