UA 1597 then B6 1034 at San Francisco
Columbus (Ohio) → San Francisco → Boston
Timetable, San Francisco time
09:28UA 1597 from Columbus (Ohio) at the gate
06:00B6 1034 to Boston leaves the gatealso EY 8006, EY 8261
20 h 32 apart on the timetable, overnight
B6 1034 leaves 20 h 32 after UA 1597 arrives on the timetable: more than half a day, so not a connection we count.