UA 718 then VA 8572 at San Francisco
Mexico City → San Francisco → Austin
Timetable, San Francisco time
16:44UA 718 from Mexico City at the gatealso AC 5033
16:20VA 8572 to Austin leaves the gate
23 h 36 apart on the timetable, overnight
VA 8572 leaves 23 h 36 after UA 718 arrives on the timetable: more than half a day, so not a connection we count.