WN 4970 then DL 5702 at Boston
Baltimore → Boston → New York JFK
Timetable, Boston time
08:10WN 4970 from Baltimore at the gate
21:30DL 5702 to New York JFK leaves the gate
13 h 20 apart on the timetable
DL 5702 leaves 13 h 20 after WN 4970 arrives on the timetable: more than half a day, so not a connection we count.