AV 2055 then UA 2356 at San Francisco
Monterey → San Francisco → Boston
Timetable, San Francisco time
20:51AV 2055 from Monterey at the gatealso UA 4633, LH 8529
10:40UA 2356 to Boston leaves the gatealso VA 8309, NZ 9015
13 h 49 apart on the timetable, overnight
UA 2356 leaves 13 h 49 after AV 2055 arrives on the timetable: more than half a day, so not a connection we count.