UA 271 then VA 8283 at San Francisco
Washington → San Francisco → Seattle
Timetable, San Francisco time
12:32UA 271 from Washington at the gatealso NZ 9180, MS 9321
12:22VA 8283 to Seattle leaves the gate
23 h 50 apart on the timetable, overnight
VA 8283 leaves 23 h 50 after UA 271 arrives on the timetable: more than half a day, so not a connection we count.