VA 8520 then QR 2091 at San Francisco
Boston → San Francisco → Santa Ana
Timetable, San Francisco time
12:49VA 8520 from Boston at the gate
09:00QR 2091 to Santa Ana leaves the gate
20 h 11 apart on the timetable, overnight
QR 2091 leaves 20 h 11 after VA 8520 arrives on the timetable: more than half a day, so not a connection we count.