UA 1757 then VA 8085 at San Francisco
Washington → San Francisco → Houston
Timetable, San Francisco time
20:35UA 1757 from Washington at the gatealso AZ 4379
16:40VA 8085 to Houston leaves the gatealso OZ 9521
20 h 05 apart on the timetable, overnight
VA 8085 leaves 20 h 05 after UA 1757 arrives on the timetable: more than half a day, so not a connection we count.