AV 2104 then UA 543 at San Francisco
San Luis Obispo → San Francisco → Las Vegas
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
14:20UA 543 to Las Vegas leaves the gatealso AC 3886, NZ 9222
18 h 24 apart on the timetable, overnight
UA 543 leaves 18 h 24 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.