AV 2191 then VA 8118 at San Francisco
Sydney → San Francisco → Las Vegas
Timetable, San Francisco time
06:25AV 2191 from Sydney at the gate
22:59VA 8118 to Las Vegas leaves the gate
16 h 34 apart on the timetable
VA 8118 leaves 16 h 34 after AV 2191 arrives on the timetable: more than half a day, so not a connection we count.