F9 1846 then DL 2879 at Atlanta
Cincinnati → Atlanta → Chicago O'Hare
Timetable, Atlanta time
19:03F9 1846 from Cincinnati at the gate
17:45DL 2879 to Chicago O'Hare leaves the gate
22 h 42 apart on the timetable, overnight
DL 2879 leaves 22 h 42 after F9 1846 arrives on the timetable: more than half a day, so not a connection we count.