AA 3235 then AA 5543 at Charlotte
Miami → Charlotte → Pittsburgh
Timetable, Charlotte time
13:59AA 3235 from Miami at the gate
08:35AA 5543 to Pittsburgh leaves the gate
18 h 36 apart on the timetable, overnight
AA 5543 leaves 18 h 36 after AA 3235 arrives on the timetable: more than half a day, so not a connection we count.