B6 833 then UA 762 at San Francisco
Boston → San Francisco → Seattle
Timetable, San Francisco time
20:55B6 833 from Boston at the gatealso EY 8011
18:30UA 762 to Seattle leaves the gatealso LX 3256, AZ 4515, NH 7304, VA 8284, NZ 9400
21 h 35 apart on the timetable, overnight
UA 762 leaves 21 h 35 after B6 833 arrives on the timetable: more than half a day, so not a connection we count.