AA 3171 then CA 1020 at O'Hare
Phoenix → Chicago → Shanghai
Timetable, Chicago time
09:31AA 3171 from Phoenix at the gate
19:30CA 1020 to Shanghai leaves the gate
9 h 59 apart on the timetable
Today
From the airport’s board at 01:17 Chicago time
09:31AA 3171 due at the gate, no estimate yet
19:30CA 1020 due to leave, no estimate yet
9 h 59 between the gates, on these times
The last days
AA 3171 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.