DL 343 then DL 3760 at Atlanta
Washington National → Atlanta → Jacksonville (North Carolina)
Timetable, Atlanta time
09:55DL 343 from Washington National at the gate
09:45DL 3760 to Jacksonville (North Carolina) leaves the gate
23 h 50 apart on the timetable, overnight
DL 3760 leaves 23 h 50 after DL 343 arrives on the timetable: more than half a day, so not a connection we count.