AV 2104 then UA 3915 at San Francisco
San Luis Obispo → San Francisco → Houston
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
13:30UA 3915 to Houston leaves the gate
17 h 34 apart on the timetable, overnight
UA 3915 leaves 17 h 34 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.