B6 833 then UA 8205 at San Francisco
Boston → San Francisco → Newark
Timetable, San Francisco time
13:16B6 833 from Boston at the gatealso FI 7969
10:05UA 8205 to Newark leaves the gate
20 h 49 apart on the timetable, overnight
UA 8205 leaves 20 h 49 after B6 833 arrives on the timetable: more than half a day, so not a connection we count.