AA 279 then AA 5483 at Philadelphia
Edinburgh → Philadelphia → Pittsburgh
Timetable, Philadelphia time
14:55AA 279 from Edinburgh at the gate
14:30AA 5483 to Pittsburgh leaves the gate
23 h 35 apart on the timetable, overnight
AA 5483 leaves 23 h 35 after AA 279 arrives on the timetable: more than half a day, so not a connection we count.