AA 4156 then UA 5191 at O'Hare
Green Bay → Chicago → Lancaster
Timetable, Chicago time
16:10AA 4156 from Green Bay at the gate
08:50UA 5191 to Lancaster leaves the gate
16 h 40 apart on the timetable, overnight
UA 5191 leaves 16 h 40 after AA 4156 arrives on the timetable: more than half a day, so not a connection we count.