MU 589 then UA 406 at San Francisco
Shanghai → San Francisco → Las Vegas
Timetable, San Francisco time
09:00MU 589 from Shanghai at the gate
21:10UA 406 to Las Vegas leaves the gatealso AC 4025, VA 8562, LH 8940, NZ 9229
12 h 10 apart on the timetable
UA 406 leaves 12 h 10 after MU 589 arrives on the timetable: more than half a day, so not a connection we count.