EK 6303 then VA 8562 at San Francisco
Chicago O'Hare → San Francisco → Las Vegas
Timetable, San Francisco time
13:30EK 6303 from Chicago O'Hare at the gate
08:40VA 8562 to Las Vegas leaves the gate
19 h 10 apart on the timetable, overnight
VA 8562 leaves 19 h 10 after EK 6303 arrives on the timetable: more than half a day, so not a connection we count.