AA 899 then AA 1802 at O'Hare
Los Angeles → Chicago → San Diego
Timetable, Chicago time
06:00AA 899 from Los Angeles at the gate
10:03AA 1802 to San Diego leaves the gate
4 h 03 apart on the timetable
The last days
AA 899 and AA 1802 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.