AA 4708 then DL 5654 at Boston
Harrisburg → Boston → Columbus (Ohio)
Timetable, Boston time
08:34AA 4708 from Harrisburg at the gate
08:16DL 5654 to Columbus (Ohio) leaves the gate
23 h 42 apart on the timetable, overnight
DL 5654 leaves 23 h 42 after AA 4708 arrives on the timetable: more than half a day, so not a connection we count.