AA 4708 then AA 4425 at Boston
Harrisburg → Boston → Buffalo
Timetable, Boston time
08:34AA 4708 from Harrisburg at the gate
08:00AA 4425 to Buffalo leaves the gate
23 h 26 apart on the timetable, overnight
AA 4425 leaves 23 h 26 after AA 4708 arrives on the timetable: more than half a day, so not a connection we count.