UA 5329 then AA 4156 at O'Hare
Grand Rapids → Chicago → Green Bay
Timetable, Chicago time
13:02UA 5329 from Grand Rapids at the gate
13:00AA 4156 to Green Bay leaves the gate
23 h 58 apart on the timetable, overnight
AA 4156 leaves 23 h 58 after UA 5329 arrives on the timetable: more than half a day, so not a connection we count.