DL 5703 then AA 4389 at Boston
Baltimore → Boston → Columbus (Ohio)
Timetable, Boston time
10:41DL 5703 from Baltimore at the gate
09:04AA 4389 to Columbus (Ohio) leaves the gate
22 h 23 apart on the timetable, overnight
AA 4389 leaves 22 h 23 after DL 5703 arrives on the timetable: more than half a day, so not a connection we count.