CA 7283 then UA 3923 at San Francisco
Los Angeles → San Francisco → Portland (Oregon)
Timetable, San Francisco time
00:06CA 7283 from Los Angeles at the gate
21:30UA 3923 to Portland (Oregon) leaves the gate
21 h 24 apart on the timetable
UA 3923 leaves 21 h 24 after CA 7283 arrives on the timetable: more than half a day, so not a connection we count.