AC 4121 then AF 2070 at San Francisco
Ontario → San Francisco → Los Angeles
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
16:49AF 2070 to Los Angeles leaves the gatealso AM 4532, LA 6133, LA 8447
22 h 59 apart on the timetable, overnight
AF 2070 leaves 22 h 59 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.