DL 5702 then DL 5481 at JFK
Boston → New York → Burlington
Timetable, New York time
23:00DL 5702 from Boston at the gate
22:30DL 5481 to Burlington leaves the gate
23 h 30 apart on the timetable, overnight
DL 5481 leaves 23 h 30 after DL 5702 arrives on the timetable: more than half a day, so not a connection we count.