F9 3600 then DL 2174 at Atlanta
Denver → Atlanta → Charleston (South Carolina)
Timetable, Atlanta time
15:48F9 3600 from Denver at the gate
15:15DL 2174 to Charleston (South Carolina) leaves the gate
23 h 27 apart on the timetable, overnight
DL 2174 leaves 23 h 27 after F9 3600 arrives on the timetable: more than half a day, so not a connection we count.