UA 1272 then VA 8085 at San Francisco
Mexico City → San Francisco → Houston
Timetable, San Francisco time
21:02UA 1272 from Mexico City at the gatealso AC 3480, NZ 9820
16:40VA 8085 to Houston leaves the gate
19 h 38 apart on the timetable, overnight
VA 8085 leaves 19 h 38 after UA 1272 arrives on the timetable: more than half a day, so not a connection we count.