AV 2055 then B6 1734 at San Francisco
Monterey → San Francisco → Boston
Timetable, San Francisco time
20:51AV 2055 from Monterey at the gatealso UA 4633, LH 8529
10:44B6 1734 to Boston leaves the gatealso FI 7830
13 h 53 apart on the timetable, overnight
B6 1734 leaves 13 h 53 after AV 2055 arrives on the timetable: more than half a day, so not a connection we count.