CM 2326 then CM 1447 at San Francisco
Seattle → San Francisco → Arcata
Timetable, San Francisco time
21:50CM 2326 from Seattle at the gate
20:50CM 1447 to Arcata leaves the gatealso UA 2220
23 h apart on the timetable, overnight
CM 1447 leaves 23 h after CM 2326 arrives on the timetable: more than half a day, so not a connection we count.