AV 2104 then Y4 2443 at San Francisco
San Luis Obispo → San Francisco → Las Vegas
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
14:21Y4 2443 to Las Vegas leaves the gatealso F9 2486
18 h 25 apart on the timetable, overnight
Y4 2443 leaves 18 h 25 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.