CM 2458 then VA 8572 at San Francisco
Sacramento → San Francisco → Austin
Timetable, San Francisco time
20:00CM 2458 from Sacramento at the gate
17:20VA 8572 to Austin leaves the gate
21 h 20 apart on the timetable, overnight
VA 8572 leaves 21 h 20 after CM 2458 arrives on the timetable: more than half a day, so not a connection we count.