AA 3871 then AA 5543 at Charlotte
Northwest Arkansas → Charlotte → Pittsburgh
Timetable, Charlotte time
12:15AA 3871 from Northwest Arkansas at the gate
08:30AA 5543 to Pittsburgh leaves the gate
20 h 15 apart on the timetable, overnight
AA 5543 leaves 20 h 15 after AA 3871 arrives on the timetable: more than half a day, so not a connection we count.