UA 3902 then AA 4935 at O'Hare
Rio De Janeiro → Chicago → Oklahoma City
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
11:45AA 4935 to Oklahoma City leaves the gate
18 h 44 apart on the timetable, overnight
AA 4935 leaves 18 h 44 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.