AA 1678 then AA 5543 at Charlotte
Phoenix → Charlotte → Pittsburgh
Timetable, Charlotte time
17:17AA 1678 from Phoenix at the gate
08:35AA 5543 to Pittsburgh leaves the gate
15 h 18 apart on the timetable, overnight
AA 5543 leaves 15 h 18 after AA 1678 arrives on the timetable: more than half a day, so not a connection we count.