UA 3902 then AA 4222 at O'Hare
Rio De Janeiro → Chicago → Green Bay
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
12:48AA 4222 to Green Bay leaves the gate
19 h 47 apart on the timetable, overnight
AA 4222 leaves 19 h 47 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.