UA 3902 then UA 4606 at O'Hare
Rio De Janeiro → Chicago → Richmond
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
08:00UA 4606 to Richmond leaves the gate
14 h 59 apart on the timetable, overnight
UA 4606 leaves 14 h 59 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.