UA 3772 then VA 8343 at San Francisco
Las Vegas → San Francisco → Denver
Timetable, San Francisco time
22:05UA 3772 from Las Vegas at the gate
20:23VA 8343 to Denver leaves the gatealso NZ 9060
22 h 18 apart on the timetable, overnight
VA 8343 leaves 22 h 18 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.