DL 5767 then B6 9002 at Boston
Washington National → Boston → Bedford
Timetable, Boston time
12:00DL 5767 from Washington National at the gate
11:00B6 9002 to Bedford leaves the gate
23 h apart on the timetable, overnight
B6 9002 leaves 23 h after DL 5767 arrives on the timetable: more than half a day, so not a connection we count.