UA 571 then CM 1472 at San Francisco
Atlanta → San Francisco → Seattle
Timetable, San Francisco time
09:29UA 571 from Atlanta at the gatealso CA 7243, VA 8403, NZ 9005
22:35CM 1472 to Seattle leaves the gatealso UA 5579, NZ 9401
13 h 06 apart on the timetable
CM 1472 leaves 13 h 06 after UA 571 arrives on the timetable: more than half a day, so not a connection we count.