DL 3848 then DL 4640 at Detroit
Milwaukee → Detroit → Pittsburgh
Timetable, Detroit time
15:28DL 3848 from Milwaukee at the gate
14:10DL 4640 to Pittsburgh leaves the gate
22 h 42 apart on the timetable, overnight
DL 4640 leaves 22 h 42 after DL 3848 arrives on the timetable: more than half a day, so not a connection we count.