AC 5269 then AS 523 at San Francisco
Chicago O'Hare → San Francisco → Santa Ana
Timetable, San Francisco time
16:20AC 5269 from Chicago O'Hare at the gatealso NZ 9325
16:17AS 523 to Santa Ana leaves the gatealso QR 2120, QR 8882, AA 9343
23 h 57 apart on the timetable, overnight
AS 523 leaves 23 h 57 after AC 5269 arrives on the timetable: more than half a day, so not a connection we count.