F9 1596 then DL 2395 at Atlanta
Chicago O'Hare → Atlanta → Cincinnati
Timetable, Atlanta time
10:30F9 1596 from Chicago O'Hare at the gate
23:10DL 2395 to Cincinnati leaves the gate
12 h 40 apart on the timetable
DL 2395 leaves 12 h 40 after F9 1596 arrives on the timetable: more than half a day, so not a connection we count.