AA 9913 then Y8 7456 at O'Hare
Kansas City → Chicago → Shanghai
Timetable, Chicago time
21:45AA 9913 from Kansas City at the gate
01:35Y8 7456 to Shanghai leaves the gate
3 h 50 apart on the timetable, overnight
The last days
AA 9913 and Y8 7456 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.