UA 3902 then AA 5001 at O'Hare
Rio De Janeiro → Chicago → Birmingham (Alabama)
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
10:30AA 5001 to Birmingham (Alabama) leaves the gate
17 h 29 apart on the timetable, overnight
AA 5001 leaves 17 h 29 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.