UA 1936 then UA 5480 at San Francisco
Eugene → San Francisco → Arcata
Timetable, San Francisco time
21:05UA 1936 from Eugene at the gatealso OZ 6325
16:20UA 5480 to Arcata leaves the gatealso NZ 9319
19 h 15 apart on the timetable, overnight
UA 5480 leaves 19 h 15 after UA 1936 arrives on the timetable: more than half a day, so not a connection we count.