AA 5564 then AA 5670 at Charlotte
Harrisburg → Charlotte → Lexington
Timetable, Charlotte time
18:46AA 5564 from Harrisburg at the gate
14:49AA 5670 to Lexington leaves the gate
20 h 03 apart on the timetable, overnight
AA 5670 leaves 20 h 03 after AA 5564 arrives on the timetable: more than half a day, so not a connection we count.