KE 3470 then AS 523 at San Francisco
Detroit → San Francisco → Santa Ana
Timetable, San Francisco time
10:29KE 3470 from Detroit at the gatealso MU 8662
16:17AS 523 to Santa Ana leaves the gatealso QR 2120, QR 8871, QR 8882, AA 9343
5 h 48 apart on the timetable
The last days
KE 3470 and AS 523 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.