AA 2700 then AA 2255 at Charlotte
Boston → Charlotte → Pittsburgh
Timetable, Charlotte time
12:46AA 2700 from Boston at the gate
08:55AA 2255 to Pittsburgh leaves the gate
20 h 09 apart on the timetable, overnight
AA 2255 leaves 20 h 09 after AA 2700 arrives on the timetable: more than half a day, so not a connection we count.