B6 374 then DL 5622 at Boston
Syracuse → Boston → Richmond
Timetable, Boston time
10:17B6 374 from Syracuse at the gate
08:47DL 5622 to Richmond leaves the gate
22 h 30 apart on the timetable, overnight
DL 5622 leaves 22 h 30 after B6 374 arrives on the timetable: more than half a day, so not a connection we count.