DL 1223 then AA 1696 at Atlanta
Cincinnati → Atlanta → Chicago O'Hare
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
15:05AA 1696 to Chicago O'Hare leaves the gate
22 h 32 apart on the timetable, overnight
AA 1696 leaves 22 h 32 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.