CM 2528 then UA 5480 at San Francisco
Ontario → San Francisco → Arcata
Timetable, San Francisco time
20:10CM 2528 from Ontario at the gatealso AC 4112
16:20UA 5480 to Arcata leaves the gatealso NZ 9319
20 h 10 apart on the timetable, overnight
UA 5480 leaves 20 h 10 after CM 2528 arrives on the timetable: more than half a day, so not a connection we count.