AA 5412 then AA 3939 at Charlotte
Daytona Beach → Charlotte → Key West
Timetable, Charlotte time
16:44AA 5412 from Daytona Beach at the gate
15:40AA 3939 to Key West leaves the gate
22 h 56 apart on the timetable, overnight
AA 3939 leaves 22 h 56 after AA 5412 arrives on the timetable: more than half a day, so not a connection we count.