AA 4650 then CA 1018 at O'Hare
Memphis → Chicago → Shanghai
Timetable, Chicago time
20:05AA 4650 from Memphis at the gate
03:00CA 1018 to Shanghai leaves the gate
6 h 55 apart on the timetable, overnight
The last days
AA 4650 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.