AA 1873 then CA 3108 at O'Hare
Salt Lake City → Chicago → Shanghai
Timetable, Chicago time
21:55AA 1873 from Salt Lake City at the gate
10:20CA 3108 to Shanghai leaves the gate
12 h 25 apart on the timetable, overnight
CA 3108 leaves 12 h 25 after AA 1873 arrives on the timetable: more than half a day, so not a connection we count.