AV 2046 then UA 1780 at San Francisco
Arcata → San Francisco → Ontario
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
18:50UA 1780 to Ontario leaves the gatealso AC 4423, AC 4548
22 h 50 apart on the timetable, overnight
UA 1780 leaves 22 h 50 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.