AA 3153 then UA 3671 at Charlotte
Omaha → Charlotte → Chicago O'Hare
Timetable, Charlotte time
16:25AA 3153 from Omaha at the gate
15:30UA 3671 to Chicago O'Hare leaves the gate
23 h 05 apart on the timetable, overnight
UA 3671 leaves 23 h 05 after AA 3153 arrives on the timetable: more than half a day, so not a connection we count.