VA 8291 then UA 785 at San Francisco
Seattle → San Francisco → Washington
Timetable, San Francisco time
11:24VA 8291 from Seattle at the gatealso NZ 9427
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
18 h 51 apart on the timetable, overnight
UA 785 leaves 18 h 51 after VA 8291 arrives on the timetable: more than half a day, so not a connection we count.