AA 1998 then AA 559 at Phoenix
Seattle → Phoenix → San Diego
Timetable, Phoenix time
10:24AA 1998 from Seattle at the gate
20:55AA 559 to San Diego leaves the gate
10 h 31 apart on the timetable
The last days
AA 1998 and AA 559 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.