YP 111 then VA 8562 at San Francisco
Seoul → San Francisco → Las Vegas
Timetable, San Francisco time
13:20YP 111 from Seoul at the gate
08:35VA 8562 to Las Vegas leaves the gate
19 h 15 apart on the timetable, overnight
VA 8562 leaves 19 h 15 after YP 111 arrives on the timetable: more than half a day, so not a connection we count.