AA 1058 then CZ 2502 at O'Hare
San Diego → Chicago → Shanghai
Timetable, Chicago time
12:42AA 1058 from San Diego at the gate
20:50CZ 2502 to Shanghai leaves the gate
8 h 08 apart on the timetable
The last days
AA 1058 and CZ 2502 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.