B6 478 then DL 5151 at JFK
Jacksonville → New York → Bangor
Timetable, New York time
18:00B6 478 from Jacksonville at the gate
13:30DL 5151 to Bangor leaves the gate
19 h 30 apart on the timetable, overnight
DL 5151 leaves 19 h 30 after B6 478 arrives on the timetable: more than half a day, so not a connection we count.