UA 3499 then AA 5875 at Charlotte
Chicago O'Hare → Charlotte → Greensboro
Timetable, Charlotte time
17:12UA 3499 from Chicago O'Hare at the gate
11:10AA 5875 to Greensboro leaves the gate
17 h 58 apart on the timetable, overnight
AA 5875 leaves 17 h 58 after UA 3499 arrives on the timetable: more than half a day, so not a connection we count.