AA 5638 then AA 5855 at Charlotte
Harrisburg → Charlotte → Roanoke
Timetable, Charlotte time
07:45AA 5638 from Harrisburg at the gate
07:12AA 5855 to Roanoke leaves the gate
23 h 27 apart on the timetable, overnight
AA 5855 leaves 23 h 27 after AA 5638 arrives on the timetable: more than half a day, so not a connection we count.