DL 3734 then DL 1939 at Atlanta
Jacksonville (North Carolina) → Atlanta → Cancún
Timetable, Atlanta time
20:24DL 3734 from Jacksonville (North Carolina) at the gate
18:29DL 1939 to Cancún leaves the gate
22 h 05 apart on the timetable, overnight
DL 1939 leaves 22 h 05 after DL 3734 arrives on the timetable: more than half a day, so not a connection we count.