DL 5731 then B6 9002 at Boston
Pittsburgh → Boston → Bedford
Timetable, Boston time
16:18DL 5731 from Pittsburgh at the gate
11:00B6 9002 to Bedford leaves the gate
18 h 42 apart on the timetable, overnight
B6 9002 leaves 18 h 42 after DL 5731 arrives on the timetable: more than half a day, so not a connection we count.