UA 3875 then UA 1811 at San Francisco
IAB → San Francisco → Portland (Oregon)
Timetable, San Francisco time
01:46UA 3875 from IAB at the gate
19:10UA 1811 to Portland (Oregon) leaves the gatealso CM 2405, AC 3334, VA 8453, LH 8784, NZ 9345
17 h 24 apart on the timetable
UA 1811 leaves 17 h 24 after UA 3875 arrives on the timetable: more than half a day, so not a connection we count.