AA 2501 then UA 6016 at O'Hare
Newark → Chicago → Green Bay
Timetable, Chicago time
08:44AA 2501 from Newark at the gate
21:25UA 6016 to Green Bay leaves the gate
12 h 41 apart on the timetable
UA 6016 leaves 12 h 41 after AA 2501 arrives on the timetable: more than half a day, so not a connection we count.