B6 724 then DL 5622 at Boston
Santiago (Dominican Republic) → Boston → Richmond
Timetable, Boston time
08:59B6 724 from Santiago (Dominican Republic) at the gate
08:50DL 5622 to Richmond leaves the gate
23 h 51 apart on the timetable, overnight
DL 5622 leaves 23 h 51 after B6 724 arrives on the timetable: more than half a day, so not a connection we count.