AV 2104 then DL 977 at San Francisco
San Luis Obispo → San Francisco → Boston
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
12:55DL 977 to Boston leaves the gatealso KE 6731
16 h 59 apart on the timetable, overnight
DL 977 leaves 16 h 59 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.