AA 1290 then AS 1479 at O'Hare
Dallas-Fort Worth → Chicago → San Diego
Timetable, Chicago time
19:16AA 1290 from Dallas-Fort Worth at the gate
19:57AS 1479 to San Diego leaves the gate
41 min apart on the timetable
The last days
AA 1290 and AS 1479 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.