AC 4121 then AV 561 at San Francisco
Ontario → San Francisco → Santa Clara
Timetable, San Francisco time
10:55AC 4121 from Ontario at the gate
23:00AV 561 to Santa Clara leaves the gatealso BR 3115, NH 7828
12 h 05 apart on the timetable
AV 561 leaves 12 h 05 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.