DL 731 then DL 1692 at Atlanta
Wilmington (ILM) → Atlanta → Philadelphia
Timetable, Atlanta time
14:27DL 731 from Wilmington (ILM) at the gate
14:16DL 1692 to Philadelphia leaves the gate
23 h 49 apart on the timetable, overnight
DL 1692 leaves 23 h 49 after DL 731 arrives on the timetable: more than half a day, so not a connection we count.