DL 731 then DL 2168 at Atlanta
Wilmington (ILM) → Atlanta → Key West
Timetable, Atlanta time
16:07DL 731 from Wilmington (ILM) at the gate
15:20DL 2168 to Key West leaves the gate
23 h 13 apart on the timetable, overnight
DL 2168 leaves 23 h 13 after DL 731 arrives on the timetable: more than half a day, so not a connection we count.