UA 1848 then VA 8287 at San Francisco
Atlanta → San Francisco → Seattle
Timetable, San Francisco time
21:50UA 1848 from Atlanta at the gate
21:05VA 8287 to Seattle leaves the gate
23 h 15 apart on the timetable, overnight
VA 8287 leaves 23 h 15 after UA 1848 arrives on the timetable: more than half a day, so not a connection we count.