AV 2267 then B6 1734 at San Francisco
Medford → San Francisco → Boston
Timetable, San Francisco time
21:20AV 2267 from Medford at the gate
10:44B6 1734 to Boston leaves the gatealso FI 7830
13 h 24 apart on the timetable, overnight
B6 1734 leaves 13 h 24 after AV 2267 arrives on the timetable: more than half a day, so not a connection we count.