UA 3902 then AA 5316 at O'Hare
Rio De Janeiro → Chicago → Louisville
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
10:11AA 5316 to Louisville leaves the gate
17 h 10 apart on the timetable, overnight
AA 5316 leaves 17 h 10 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.