UA 1506 then VA 8562 at San Francisco
Miami → San Francisco → Las Vegas
Timetable, San Francisco time
12:43UA 1506 from Miami at the gatealso AZ 4406, EK 6034
08:40VA 8562 to Las Vegas leaves the gate
19 h 57 apart on the timetable, overnight
VA 8562 leaves 19 h 57 after UA 1506 arrives on the timetable: more than half a day, so not a connection we count.