AV 2046 then UA 453 at San Francisco
Arcata → San Francisco → Raleigh-Durham
Timetable, San Francisco time
09:13AV 2046 from Arcata at the gate
21:30UA 453 to Raleigh-Durham leaves the gatealso VA 8236, NZ 9567
12 h 17 apart on the timetable
UA 453 leaves 12 h 17 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.