DL 3848 then UA 6190 at Detroit
Milwaukee → Detroit → Washington
Timetable, Detroit time
15:38DL 3848 from Milwaukee at the gate
14:45UA 6190 to Washington leaves the gate
23 h 07 apart on the timetable, overnight
UA 6190 leaves 23 h 07 after DL 3848 arrives on the timetable: more than half a day, so not a connection we count.