Las Vegas is 2 hours behind Chicago. Chicago uses Central Time (CST/CDT) while Las Vegas uses Pacific Time (PST/PDT). When it's 12:00 PM in Chicago, it's 10:00 AM in Las Vegas.
Both cities observe daylight saving time on the same schedule, so the 2-hour difference remains constant year-round.
Best calling time: 11:00 AM - 7:00 PM Chicago time. This corresponds to 9:00 AM - 5:00 PM in Las Vegas, covering Pacific Time business hours.
Chicago to Las Vegas is one of the most popular domestic flight routes, taking about 4 hours. Las Vegas is a major convention destination for Chicago-based businesses and a popular weekend getaway.