VA 8520 then QF 3654 at San Francisco
Boston → San Francisco → New York JFK
Timetable, San Francisco time
12:49VA 8520 from Boston at the gate
07:00QF 3654 to New York JFK leaves the gate
18 h 11 apart on the timetable, overnight
QF 3654 leaves 18 h 11 after VA 8520 arrives on the timetable: more than half a day, so not a connection we count.