AA 2687 then AA 2255 at Charlotte
Washington National → Charlotte → Pittsburgh
Timetable, Charlotte time
10:19AA 2687 from Washington National at the gate
08:55AA 2255 to Pittsburgh leaves the gate
22 h 36 apart on the timetable, overnight
AA 2255 leaves 22 h 36 after AA 2687 arrives on the timetable: more than half a day, so not a connection we count.