UA 246 then VA 8562 at San Francisco
Chicago O'Hare → San Francisco → Las Vegas
Timetable, San Francisco time
08:48UA 246 from Chicago O'Hare at the gatealso AC 5029, CA 7294, VA 8094, NZ 9323
08:40VA 8562 to Las Vegas leaves the gate
23 h 52 apart on the timetable, overnight
VA 8562 leaves 23 h 52 after UA 246 arrives on the timetable: more than half a day, so not a connection we count.