DL 3734 then B6 520 at Atlanta
Jacksonville (North Carolina) → Atlanta → New York JFK
Timetable, Atlanta time
20:24DL 3734 from Jacksonville (North Carolina) at the gate
18:41B6 520 to New York JFK leaves the gate
22 h 17 apart on the timetable, overnight
B6 520 leaves 22 h 17 after DL 3734 arrives on the timetable: more than half a day, so not a connection we count.