DL 1680 then AA 1696 at Atlanta
Cincinnati → Atlanta → Chicago O'Hare
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
14:45AA 1696 to Chicago O'Hare leaves the gate
17 h 02 apart on the timetable, overnight
AA 1696 leaves 17 h 02 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.