AA 3391 then AA 525 at Charlotte
Hilton Head → Charlotte → Portland (Oregon)
Timetable, Charlotte time
17:40AA 3391 from Hilton Head at the gate
17:15AA 525 to Portland (Oregon) leaves the gate
23 h 35 apart on the timetable, overnight
AA 525 leaves 23 h 35 after AA 3391 arrives on the timetable: more than half a day, so not a connection we count.