DL 5703 then B6 771 at Boston
Baltimore → Boston → Cancún
Timetable, Boston time
10:41DL 5703 from Baltimore at the gate
09:32B6 771 to Cancún leaves the gate
22 h 51 apart on the timetable, overnight
B6 771 leaves 22 h 51 after DL 5703 arrives on the timetable: more than half a day, so not a connection we count.