AA 1831 then AA 5135 at Charlotte
Key West → Charlotte → Charleston (South Carolina)
Timetable, Charlotte time
16:14AA 1831 from Key West at the gate
15:44AA 5135 to Charleston (South Carolina) leaves the gate
23 h 30 apart on the timetable, overnight
AA 5135 leaves 23 h 30 after AA 1831 arrives on the timetable: more than half a day, so not a connection we count.