DL 1523 then B6 9002 at Boston
Washington National → Boston → Bedford
Timetable, Boston time
13:34DL 1523 from Washington National at the gate
11:00B6 9002 to Bedford leaves the gate
21 h 26 apart on the timetable, overnight
B6 9002 leaves 21 h 26 after DL 1523 arrives on the timetable: more than half a day, so not a connection we count.