UA 3905 then UA 2624 at San Francisco
Tokyo Haneda → San Francisco → Portland (Oregon)
Timetable, San Francisco time
16:33UA 3905 from Tokyo Haneda at the gate
10:27UA 2624 to Portland (Oregon) leaves the gatealso AC 3331, VA 8456, NZ 9343
17 h 54 apart on the timetable, overnight
UA 2624 leaves 17 h 54 after UA 3905 arrives on the timetable: more than half a day, so not a connection we count.