VA 8520 then AV 2034 at San Francisco
Boston → San Francisco → Fresno
Timetable, San Francisco time
12:49VA 8520 from Boston at the gate
08:24AV 2034 to Fresno leaves the gate
19 h 35 apart on the timetable, overnight
AV 2034 leaves 19 h 35 after VA 8520 arrives on the timetable: more than half a day, so not a connection we count.