DL 1680 then DL 1472 at Atlanta
Cincinnati → Atlanta → Key West
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
11:07DL 1472 to Key West leaves the gate
13 h 24 apart on the timetable, overnight
DL 1472 leaves 13 h 24 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.