AS 3251 then UA 8213 at San Francisco
Santa Ana → San Francisco → San Diego
Timetable, San Francisco time
09:34AS 3251 from Santa Ana at the gatealso AA 9286
13:20UA 8213 to San Diego leaves the gate
3 h 46 apart on the timetable
The last days
AS 3251 and UA 8213 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.