UA 751 then AV 2036 at San Francisco
Portland (Oregon) → San Francisco → Seattle
Timetable, San Francisco time
15:15UA 751 from Portland (Oregon) at the gatealso CM 1419
07:25AV 2036 to Seattle leaves the gate
16 h 10 apart on the timetable, overnight
AV 2036 leaves 16 h 10 after UA 751 arrives on the timetable: more than half a day, so not a connection we count.