AV 2046 then LX 39 at San Francisco
Arcata → San Francisco → Zurich
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
19:25LX 39 to Zurich leaves the gatealso UA 9725
23 h 25 apart on the timetable, overnight
LX 39 leaves 23 h 25 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.