DL 2174 then DL 2398 at Atlanta
Charleston (South Carolina) → Atlanta → New York JFK
Timetable, Atlanta time
18:54DL 2174 from Charleston (South Carolina) at the gate
15:16DL 2398 to New York JFK leaves the gate
20 h 22 apart on the timetable, overnight
DL 2398 leaves 20 h 22 after DL 2174 arrives on the timetable: more than half a day, so not a connection we count.