AV 2046 then UA 583 at San Francisco
Arcata → San Francisco → Austin
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
11:00UA 583 to Austin leaves the gate
15 h apart on the timetable, overnight
UA 583 leaves 15 h after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.