AA 1253 then AS 303 at San Francisco
Chicago O'Hare → San Francisco → Los Angeles
Timetable, San Francisco time
09:40AA 1253 from Chicago O'Hare at the gatealso QF 4697
09:43AS 303 to Los Angeles leaves the gatealso TN 2717, QR 2975, IB 7281
3 min apart on the timetable
Today
From the airport’s board at 09:41 San Francisco time
09:40AA 1253 is cancelled
09:43AS 303 due to leave, no estimate yet
The last days
AA 1253 and AS 303 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.