AV 2046 then UA 930 at San Francisco
Arcata → San Francisco → London
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
16:40UA 930 to London leaves the gatealso LX 3049, AC 5376, OS 7858, SN 9100, LH 9379
20 h 40 apart on the timetable, overnight
UA 930 leaves 20 h 40 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.