DL 207 then DL 5446 at Detroit
Rome → Detroit → Cincinnati
Timetable, Detroit time
14:30DL 207 from Rome at the gate
14:00DL 5446 to Cincinnati leaves the gate
23 h 30 apart on the timetable, overnight
DL 5446 leaves 23 h 30 after DL 207 arrives on the timetable: more than half a day, so not a connection we count.