AA 686 then AA 1353 at San Francisco
Phoenix → San Francisco → Chicago O'Hare
Timetable, San Francisco time
22:37AA 686 from Phoenix at the gate
07:13AA 1353 to Chicago O'Hare leaves the gatealso QF 4693, EI 7102
8 h 36 apart on the timetable, overnight
The last days
AA 686 and AA 1353 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.