UA 3902 then AA 2419 at O'Hare
Rio De Janeiro → Chicago → Dallas-Fort Worth
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
15:00AA 2419 to Dallas-Fort Worth leaves the gate
21 h 59 apart on the timetable, overnight
AA 2419 leaves 21 h 59 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.