AA 5562 then AA 5893 at Charlotte
Burlington → Charlotte → Florence
Timetable, Charlotte time
10:18AA 5562 from Burlington at the gate
22:50AA 5893 to Florence leaves the gate
12 h 32 apart on the timetable
AA 5893 leaves 12 h 32 after AA 5562 arrives on the timetable: more than half a day, so not a connection we count.