UA 3922 then AA 3426 at O'Hare
Savannah → Chicago → Green Bay
Timetable, Chicago time
02:36UA 3922 from Savannah at the gate
23:00AA 3426 to Green Bay leaves the gate
20 h 24 apart on the timetable
AA 3426 leaves 20 h 24 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.