B6 717 then DL 1480 at JFK
Boston → New York → Atlanta
Timetable, New York time
14:16B6 717 from Boston at the gate
14:00DL 1480 to Atlanta leaves the gate
23 h 44 apart on the timetable, overnight
DL 1480 leaves 23 h 44 after B6 717 arrives on the timetable: more than half a day, so not a connection we count.