UA 3902 then AA 1649 at O'Hare
Rio De Janeiro → Chicago → San Jose del Cabo
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
08:55AA 1649 to San Jose del Cabo leaves the gate
15 h 54 apart on the timetable, overnight
AA 1649 leaves 15 h 54 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.