DL 3737 then DL 3724 at Detroit
Milwaukee → Detroit → Milwaukee
Timetable, Detroit time
20:59DL 3737 from Milwaukee at the gate
19:50DL 3724 to Milwaukee leaves the gate
22 h 51 apart on the timetable, overnight
DL 3724 leaves 22 h 51 after DL 3737 arrives on the timetable: more than half a day, so not a connection we count.