CM 2457 then UA 751 at San Francisco
Sacramento → San Francisco → Las Vegas
Timetable, San Francisco time
21:41CM 2457 from Sacramento at the gatealso UA 5961, VA 8183, NZ 9675
16:50UA 751 to Las Vegas leaves the gatealso AZ 4491, EK 6366
19 h 09 apart on the timetable, overnight
UA 751 leaves 19 h 09 after CM 2457 arrives on the timetable: more than half a day, so not a connection we count.