AA 597 then WN 4326 at San Francisco
Chicago O'Hare → San Francisco → San Diego
Timetable, San Francisco time
16:19AA 597 from Chicago O'Hare at the gatealso QF 4712
18:15WN 4326 to San Diego leaves the gate
1 h 56 apart on the timetable
The last days
AA 597 and WN 4326 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.