AA 3391 then AA 5474 at Charlotte
Hilton Head → Charlotte → Wilmington
Timetable, Charlotte time
17:40AA 3391 from Hilton Head at the gate
17:30AA 5474 to Wilmington leaves the gate
23 h 50 apart on the timetable, overnight
AA 5474 leaves 23 h 50 after AA 3391 arrives on the timetable: more than half a day, so not a connection we count.