AA 597 then CA 8448 at O'Hare
San Francisco → Chicago → Shanghai
Timetable, Chicago time
23:55AA 597 from San Francisco at the gate
03:10CA 8448 to Shanghai leaves the gate
3 h 15 apart on the timetable, overnight
The last days
AA 597 and CA 8448 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.