AA 9915 then CA 8412 at O'Hare
Shreveport → Chicago → Shanghai
Timetable, Chicago time
16:00AA 9915 from Shreveport at the gate
02:55CA 8412 to Shanghai leaves the gate
10 h 55 apart on the timetable, overnight
The last days
AA 9915 and CA 8412 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.