AA 1757 then UA 3671 at Charlotte
Milwaukee → Charlotte → Chicago O'Hare
Timetable, Charlotte time
21:34AA 1757 from Milwaukee at the gate
15:30UA 3671 to Chicago O'Hare leaves the gate
17 h 56 apart on the timetable, overnight
UA 3671 leaves 17 h 56 after AA 1757 arrives on the timetable: more than half a day, so not a connection we count.