VA 8520 then CA 7407 at San Francisco
Boston → San Francisco → Austin
Timetable, San Francisco time
12:49VA 8520 from Boston at the gate
12:08CA 7407 to Austin leaves the gate
23 h 19 apart on the timetable, overnight
CA 7407 leaves 23 h 19 after VA 8520 arrives on the timetable: more than half a day, so not a connection we count.