AV 2104 then UA 8180 at San Francisco
San Luis Obispo → San Francisco → Ontario
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
19:55UA 8180 to Ontario leaves the gate
23 h 59 apart on the timetable, overnight
UA 8180 leaves 23 h 59 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.