AA 3576 then CA 8414 at O'Hare
Cleveland → Chicago → Shanghai
Timetable, Chicago time
22:05AA 3576 from Cleveland at the gate
08:10CA 8414 to Shanghai leaves the gate
10 h 05 apart on the timetable, overnight
The last days
AA 3576 and CA 8414 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.