UA 3902 then AA 4498 at O'Hare
Rio De Janeiro → Chicago → Harrisburg
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
11:45AA 4498 to Harrisburg leaves the gate
18 h 44 apart on the timetable, overnight
AA 4498 leaves 18 h 44 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.