UA 504 then VA 8085 at San Francisco
Baltimore → San Francisco → Houston
Timetable, San Francisco time
21:45UA 504 from Baltimore at the gate
16:40VA 8085 to Houston leaves the gate
18 h 55 apart on the timetable, overnight
VA 8085 leaves 18 h 55 after UA 504 arrives on the timetable: more than half a day, so not a connection we count.