DL 731 then DL 659 at Atlanta
Wilmington (ILM) → Atlanta → Las Vegas
Timetable, Atlanta time
16:07DL 731 from Wilmington (ILM) at the gate
15:39DL 659 to Las Vegas leaves the gate
23 h 32 apart on the timetable, overnight
DL 659 leaves 23 h 32 after DL 731 arrives on the timetable: more than half a day, so not a connection we count.