AA 5534 then AA 5543 at Charlotte
Savannah → Charlotte → Pittsburgh
Timetable, Charlotte time
10:59AA 5534 from Savannah at the gate
08:30AA 5543 to Pittsburgh leaves the gate
21 h 31 apart on the timetable, overnight
AA 5543 leaves 21 h 31 after AA 5534 arrives on the timetable: more than half a day, so not a connection we count.