AA 3375 then AS 1478 at O'Hare
Fargo → Chicago → San Diego
Timetable, Chicago time
14:45AA 3375 from Fargo at the gate
19:49AS 1478 to San Diego leaves the gate
5 h 04 apart on the timetable
The last days
AA 3375 and AS 1478 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.