AV 2104 then UA 1496 at San Francisco
San Luis Obispo → San Francisco → Boston
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
14:42UA 1496 to Boston leaves the gatealso VA 8307, NZ 9013
18 h 46 apart on the timetable, overnight
UA 1496 leaves 18 h 46 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.