DL 5703 then AA 2783 at Boston
Baltimore → Boston → Washington National
Timetable, Boston time
10:41DL 5703 from Baltimore at the gate
09:23AA 2783 to Washington National leaves the gate
22 h 42 apart on the timetable, overnight
AA 2783 leaves 22 h 42 after DL 5703 arrives on the timetable: more than half a day, so not a connection we count.