CZ 1604 then UA 1811 at San Francisco
Los Angeles → San Francisco → Portland (Oregon)
Timetable, San Francisco time
23:40CZ 1604 from Los Angeles at the gatealso AA 3176, AY 4048, QF 4743, EI 7533
19:10UA 1811 to Portland (Oregon) leaves the gatealso CM 2405, AC 3334, AZ 4501, VA 8453, NZ 9345
19 h 30 apart on the timetable, overnight
UA 1811 leaves 19 h 30 after CZ 1604 arrives on the timetable: more than half a day, so not a connection we count.