UA 8264 then CA 7407 at San Francisco
Houston → San Francisco → Austin
Timetable, San Francisco time
15:49UA 8264 from Houston at the gate
12:06CA 7407 to Austin leaves the gate
20 h 17 apart on the timetable, overnight
CA 7407 leaves 20 h 17 after UA 8264 arrives on the timetable: more than half a day, so not a connection we count.