UA 571 then AC 3331 at San Francisco
Atlanta → San Francisco → Portland (Oregon)
Timetable, San Francisco time
11:24UA 571 from Atlanta at the gatealso VA 8403, NZ 9005
10:27AC 3331 to Portland (Oregon) leaves the gate
23 h 03 apart on the timetable, overnight
AC 3331 leaves 23 h 03 after UA 571 arrives on the timetable: more than half a day, so not a connection we count.