UA 1141 then UA 3917 at San Francisco
Miami → San Francisco → Las Vegas
Timetable, San Francisco time
20:10UA 1141 from Miami at the gatealso CM 2873, NZ 2924, EK 6316, VA 8394
16:45UA 3917 to Las Vegas leaves the gate
20 h 35 apart on the timetable, overnight
UA 3917 leaves 20 h 35 after UA 1141 arrives on the timetable: more than half a day, so not a connection we count.