AS 3494 then QR 2103 at San Francisco
Santa Ana → San Francisco → Los Angeles
Timetable, San Francisco time
17:55AS 3494 from Santa Ana at the gatealso AA 9298
22:06QR 2103 to Los Angeles leaves the gatealso AS 2415, QR 2982
4 h 11 apart on the timetable
The last days
AS 3494 and QR 2103 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.