DL 2646 then B6 1629 at Boston
Chicago O'Hare → Boston → Santo Domingo
Timetable, Boston time
23:08DL 2646 from Chicago O'Hare at the gate
22:00B6 1629 to Santo Domingo leaves the gate
22 h 52 apart on the timetable, overnight
B6 1629 leaves 22 h 52 after DL 2646 arrives on the timetable: more than half a day, so not a connection we count.