AS 634 then QF 3656 at San Francisco
Las Vegas → San Francisco → New York JFK
Timetable, San Francisco time
17:41AS 634 from Las Vegas at the gatealso QF 3697, FJ 5841, AA 7412, CX 7935, QR 8861
13:50QF 3656 to New York JFK leaves the gate
20 h 09 apart on the timetable, overnight
QF 3656 leaves 20 h 09 after AS 634 arrives on the timetable: more than half a day, so not a connection we count.