AA 3865 then AA 6099 at Charlotte
Hilton Head → Charlotte → Greenville-Spartanburg
Timetable, Charlotte time
13:44AA 3865 from Hilton Head at the gate
12:15AA 6099 to Greenville-Spartanburg leaves the gate
22 h 31 apart on the timetable, overnight
AA 6099 leaves 22 h 31 after AA 3865 arrives on the timetable: more than half a day, so not a connection we count.