DL 1075 then AA 1779 at Boston
Raleigh-Durham → Boston → Washington National
Timetable, Boston time
19:10DL 1075 from Raleigh-Durham at the gate
18:56AA 1779 to Washington National leaves the gate
23 h 46 apart on the timetable, overnight
AA 1779 leaves 23 h 46 after DL 1075 arrives on the timetable: more than half a day, so not a connection we count.