B6 724 then DL 5597 at Boston
Santiago (Dominican Republic) → Boston → Jacksonville
Timetable, Boston time
08:59B6 724 from Santiago (Dominican Republic) at the gate
08:45DL 5597 to Jacksonville leaves the gate
23 h 46 apart on the timetable, overnight
DL 5597 leaves 23 h 46 after B6 724 arrives on the timetable: more than half a day, so not a connection we count.