AA 5564 then AA 3168 at Charlotte
Harrisburg → Charlotte → Oklahoma City
Timetable, Charlotte time
18:46AA 5564 from Harrisburg at the gate
15:40AA 3168 to Oklahoma City leaves the gate
20 h 54 apart on the timetable, overnight
AA 3168 leaves 20 h 54 after AA 5564 arrives on the timetable: more than half a day, so not a connection we count.