B6 2718 then DL 5845 at Boston
New York JFK → Boston → Philadelphia
Timetable, Boston time
07:50B6 2718 from New York JFK at the gate
06:40DL 5845 to Philadelphia leaves the gate
22 h 50 apart on the timetable, overnight
DL 5845 leaves 22 h 50 after B6 2718 arrives on the timetable: more than half a day, so not a connection we count.