UA 2462 then VA 8085 at San Francisco
Toronto → San Francisco → Houston
Timetable, San Francisco time
20:03UA 2462 from Toronto at the gatealso AC 3898
16:40VA 8085 to Houston leaves the gatealso OZ 9521
20 h 37 apart on the timetable, overnight
VA 8085 leaves 20 h 37 after UA 2462 arrives on the timetable: more than half a day, so not a connection we count.