UA 2278 then AS 2023 at San Francisco
San Diego → San Francisco → Portland (Oregon)
Timetable, San Francisco time
21:25UA 2278 from San Diego at the gatealso AC 4236, OZ 6308, VA 8439
21:05AS 2023 to Portland (Oregon) leaves the gatealso QR 2114, BA 2986, QR 3357, AA 7595
23 h 40 apart on the timetable, overnight
AS 2023 leaves 23 h 40 after UA 2278 arrives on the timetable: more than half a day, so not a connection we count.