AA 6486 then AA 4222 at O'Hare
Detroit → Chicago → Green Bay
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
12:48AA 4222 to Green Bay leaves the gate
19 h 19 apart on the timetable, overnight
AA 4222 leaves 19 h 19 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.