AV 2046 then UA 2229 at San Francisco
Arcata → San Francisco → Philadelphia
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
14:30UA 2229 to Philadelphia leaves the gatealso CA 7330, NH 7362, NZ 9362
18 h 30 apart on the timetable, overnight
UA 2229 leaves 18 h 30 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.