AA 6212 then CA 1020 at O'Hare
Madison → Chicago → Shanghai
Timetable, Chicago time
12:55AA 6212 from Madison at the gate
19:30CA 1020 to Shanghai leaves the gate
6 h 35 apart on the timetable
The last days
AA 6212 and CA 1020 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.