CX 7945 then B6 1034 at San Francisco
San Diego → San Francisco → Boston
Timetable, San Francisco time
08:52CX 7945 from San Diego at the gate
06:00B6 1034 to Boston leaves the gatealso EY 8006, EY 8261
21 h 08 apart on the timetable, overnight
B6 1034 leaves 21 h 08 after CX 7945 arrives on the timetable: more than half a day, so not a connection we count.