AV 2104 then UA 5510 at San Francisco
San Luis Obispo → San Francisco → Carlsbad
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
10:10UA 5510 to Carlsbad leaves the gate
14 h 14 apart on the timetable, overnight
UA 5510 leaves 14 h 14 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.