AA 1949 then AS 1837 at San Francisco
Dallas-Fort Worth → San Francisco → Los Angeles
Timetable, San Francisco time
09:01AA 1949 from Dallas-Fort Worth at the gatealso IB 4292
20:08AS 1837 to Los Angeles leaves the gatealso QR 2001, QR 2092, TN 2349, QR 3403, QR 8861
11 h 07 apart on the timetable
The last days
AA 1949 and AS 1837 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.