AA 522 then CZ 2508 at O'Hare
Washington National → Chicago → Shanghai
Timetable, Chicago time
10:07AA 522 from Washington National at the gate
20:50CZ 2508 to Shanghai leaves the gate
10 h 43 apart on the timetable
The last days
AA 522 and CZ 2508 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.