AA 6060 then AA 1831 at Charlotte
Chattanooga → Charlotte → Key West
Timetable, Charlotte time
16:23AA 6060 from Chattanooga at the gate
10:45AA 1831 to Key West leaves the gate
18 h 22 apart on the timetable, overnight
AA 1831 leaves 18 h 22 after AA 6060 arrives on the timetable: more than half a day, so not a connection we count.