DL 994 then DL 2174 at Atlanta
New York LaGuardia → Atlanta → Charleston (South Carolina)
Timetable, Atlanta time
15:27DL 994 from New York LaGuardia at the gate
15:15DL 2174 to Charleston (South Carolina) leaves the gate
23 h 48 apart on the timetable, overnight
DL 2174 leaves 23 h 48 after DL 994 arrives on the timetable: more than half a day, so not a connection we count.