UA 3634 then AA 5857 at Charlotte
Washington → Charlotte → Fayetteville
Timetable, Charlotte time
10:42UA 3634 from Washington at the gate
22:50AA 5857 to Fayetteville leaves the gate
12 h 08 apart on the timetable
AA 5857 leaves 12 h 08 after UA 3634 arrives on the timetable: more than half a day, so not a connection we count.