AA 5353 then AA 1831 at Charlotte
Wilmington → Charlotte → Key West
Timetable, Charlotte time
15:16AA 5353 from Wilmington at the gate
10:45AA 1831 to Key West leaves the gate
19 h 29 apart on the timetable, overnight
AA 1831 leaves 19 h 29 after AA 5353 arrives on the timetable: more than half a day, so not a connection we count.