UA 3902 then AA 4571 at O'Hare
Rio De Janeiro → Chicago → Grand Rapids
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
11:40AA 4571 to Grand Rapids leaves the gate
18 h 39 apart on the timetable, overnight
AA 4571 leaves 18 h 39 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.