AA 5638 then AA 1409 at Charlotte
Harrisburg → Charlotte → Chicago O'Hare
Timetable, Charlotte time
07:45AA 5638 from Harrisburg at the gate
07:35AA 1409 to Chicago O'Hare leaves the gate
23 h 50 apart on the timetable, overnight
AA 1409 leaves 23 h 50 after AA 5638 arrives on the timetable: more than half a day, so not a connection we count.