AA 1971 then AA 5483 at Philadelphia
Cancún → Philadelphia → Pittsburgh
Timetable, Philadelphia time
16:01AA 1971 from Cancún at the gate
14:30AA 5483 to Pittsburgh leaves the gate
22 h 29 apart on the timetable, overnight
AA 5483 leaves 22 h 29 after AA 1971 arrives on the timetable: more than half a day, so not a connection we count.