UA 3902 then AA 3750 at O'Hare
Rio De Janeiro → Chicago → Sarasota
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
08:19AA 3750 to Sarasota leaves the gate
15 h 18 apart on the timetable, overnight
AA 3750 leaves 15 h 18 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.