AV 2104 then UA 2603 at San Francisco
San Luis Obispo → San Francisco → Salt Lake City
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
12:28UA 2603 to Salt Lake City leaves the gate
16 h 32 apart on the timetable, overnight
UA 2603 leaves 16 h 32 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.