UA 3902 then AA 677 at O'Hare
Rio De Janeiro → Chicago → Spokane
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
11:11AA 677 to Spokane leaves the gate
18 h 10 apart on the timetable, overnight
AA 677 leaves 18 h 10 after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.