AS 3494 then OZ 6303 at San Francisco
Santa Ana → San Francisco → Chicago O'Hare
Timetable, San Francisco time
17:55AS 3494 from Santa Ana at the gatealso AA 9298
17:10OZ 6303 to Chicago O'Hare leaves the gate
23 h 15 apart on the timetable, overnight
OZ 6303 leaves 23 h 15 after AS 3494 arrives on the timetable: more than half a day, so not a connection we count.