AV 2104 then UA 2356 at San Francisco
San Luis Obispo → San Francisco → Boston
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
10:46UA 2356 to Boston leaves the gatealso VA 8309, NZ 9015
14 h 50 apart on the timetable, overnight
UA 2356 leaves 14 h 50 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.