AA 2851 then AA 5543 at Charlotte
Kansas City → Charlotte → Pittsburgh
Timetable, Charlotte time
18:19AA 2851 from Kansas City at the gate
08:35AA 5543 to Pittsburgh leaves the gate
14 h 16 apart on the timetable, overnight
AA 5543 leaves 14 h 16 after AA 2851 arrives on the timetable: more than half a day, so not a connection we count.