DL 5665 then B6 1323 at Boston
Richmond → Boston → Santiago (Dominican Republic)
Timetable, Boston time
20:12DL 5665 from Richmond at the gate
18:55B6 1323 to Santiago (Dominican Republic) leaves the gate
22 h 43 apart on the timetable, overnight
B6 1323 leaves 22 h 43 after DL 5665 arrives on the timetable: more than half a day, so not a connection we count.