AA 4784 then CA 1018 at O'Hare
Cleveland → Chicago → Shanghai
Timetable, Chicago time
21:29AA 4784 from Cleveland at the gate
03:00CA 1018 to Shanghai leaves the gate
5 h 31 apart on the timetable, overnight
The last days
AA 4784 and CA 1018 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.