AV 2104 then UA 2831 at San Francisco
San Luis Obispo → San Francisco → Houston
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
14:30UA 2831 to Houston leaves the gate
18 h 34 apart on the timetable, overnight
UA 2831 leaves 18 h 34 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.