SK 9502 then VA 8118 at San Francisco
Mexico City → San Francisco → Las Vegas
Timetable, San Francisco time
11:38SK 9502 from Mexico City at the gate
08:35VA 8118 to Las Vegas leaves the gate
20 h 57 apart on the timetable, overnight
VA 8118 leaves 20 h 57 after SK 9502 arrives on the timetable: more than half a day, so not a connection we count.