UA 3902 then AA 3739 at O'Hare
Rio De Janeiro → Chicago → Omaha
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
10:05AA 3739 to Omaha leaves the gate
17 h 04 apart on the timetable, overnight
AA 3739 leaves 17 h 04 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.