AV 2046 then UA 8180 at San Francisco
Arcata → San Francisco → Ontario
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
19:55UA 8180 to Ontario leaves the gate
23 h 55 apart on the timetable, overnight
UA 8180 leaves 23 h 55 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.