UA 1116 then CM 1472 at San Francisco
Chicago O'Hare → San Francisco → Seattle
Timetable, San Francisco time
10:28UA 1116 from Chicago O'Hare at the gatealso AC 5339, CA 7293, VA 8086, NZ 9327
22:35CM 1472 to Seattle leaves the gatealso UA 5579, NZ 9401
12 h 07 apart on the timetable
CM 1472 leaves 12 h 07 after UA 1116 arrives on the timetable: more than half a day, so not a connection we count.