LA 6139 then AV 561 at San Francisco
Boston → San Francisco → Santa Clara
Timetable, San Francisco time
00:24LA 6139 from Boston at the gate
23:00AV 561 to Santa Clara leaves the gatealso BR 3115, NH 7828
22 h 36 apart on the timetable
AV 561 leaves 22 h 36 after LA 6139 arrives on the timetable: more than half a day, so not a connection we count.