AA 5430 then AA 604 at Charlotte
Dayton → Charlotte → Miami
Timetable, Charlotte time
11:32AA 5430 from Dayton at the gate
09:20AA 604 to Miami leaves the gate
21 h 48 apart on the timetable, overnight
AA 604 leaves 21 h 48 after AA 5430 arrives on the timetable: more than half a day, so not a connection we count.