UA 3902 then AA 2970 at O'Hare
Rio De Janeiro → Chicago → Minneapolis
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
11:56AA 2970 to Minneapolis leaves the gate
18 h 55 apart on the timetable, overnight
AA 2970 leaves 18 h 55 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.