DL 775 then AA 1138 at Atlanta
Cleveland → Atlanta → Chicago O'Hare
Timetable, Atlanta time
17:06DL 775 from Cleveland at the gate
16:46AA 1138 to Chicago O'Hare leaves the gate
23 h 40 apart on the timetable, overnight
AA 1138 leaves 23 h 40 after DL 775 arrives on the timetable: more than half a day, so not a connection we count.