DL 514 then B6 381 at Boston
Phoenix → Boston → Richmond
Timetable, Boston time
06:23DL 514 from Phoenix at the gate
21:29B6 381 to Richmond leaves the gate
15 h 06 apart on the timetable
B6 381 leaves 15 h 06 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.