CM 1431 then UA 436 at San Francisco
Redmond → San Francisco → Ontario
Timetable, San Francisco time
21:19CM 1431 from Redmond at the gatealso UA 5534
16:35UA 436 to Ontario leaves the gatealso AC 4014
19 h 16 apart on the timetable, overnight
UA 436 leaves 19 h 16 after CM 1431 arrives on the timetable: more than half a day, so not a connection we count.