AA 1004 then AA 2255 at Charlotte
Boston → Charlotte → Pittsburgh
Timetable, Charlotte time
09:44AA 1004 from Boston at the gate
08:55AA 2255 to Pittsburgh leaves the gate
23 h 11 apart on the timetable, overnight
AA 2255 leaves 23 h 11 after AA 1004 arrives on the timetable: more than half a day, so not a connection we count.