AA 5882 then AA 5483 at Philadelphia
Richmond → Philadelphia → Pittsburgh
Timetable, Philadelphia time
17:45AA 5882 from Richmond at the gate
14:30AA 5483 to Pittsburgh leaves the gate
20 h 45 apart on the timetable, overnight
AA 5483 leaves 20 h 45 after AA 5882 arrives on the timetable: more than half a day, so not a connection we count.