AA 2658 then UA 4772 at O'Hare
Charleston (South Carolina) → Chicago → Columbia Regional
Timetable, Chicago time
13:59AA 2658 from Charleston (South Carolina) at the gate
12:45UA 4772 to Columbia Regional leaves the gate
22 h 46 apart on the timetable, overnight
UA 4772 leaves 22 h 46 after AA 2658 arrives on the timetable: more than half a day, so not a connection we count.