UA 340 then CM 1472 at San Francisco
Houston → San Francisco → Seattle
Timetable, San Francisco time
21:46UA 340 from Houston at the gatealso EK 6155, NZ 9208, OZ 9522
21:05CM 1472 to Seattle leaves the gatealso UA 5579
23 h 19 apart on the timetable, overnight
CM 1472 leaves 23 h 19 after UA 340 arrives on the timetable: more than half a day, so not a connection we count.