AA 9908 then KJ 248 at O'Hare
Milwaukee → Chicago → Atlanta
Timetable, Chicago time
13:50AA 9908 from Milwaukee at the gate
11:35KJ 248 to Atlanta leaves the gate
21 h 45 apart on the timetable, overnight
KJ 248 leaves 21 h 45 after AA 9908 arrives on the timetable: more than half a day, so not a connection we count.