Cheap flights from Chicago to Las Vegas from £65

In general, August is the cheapest month to fly from Chicago to Las Vegas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £174. If you’re not able to fly to Las Vegas in August, then January is your next best option. Flight prices from Chicago to Las Vegas during January average around £181.

The cheapest day to depart on your flight to Las Vegas is on a Tuesday when prices can be found for as low as £125. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £363.

Our data shows that the cheapest Chicago to Las Vegas flights are usually those with departure times in the morning. Our users have found flights to Las Vegas in the morning for as low as £217. Flights to Las Vegas are more costly in the evening, with an average ticket price of £298. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Chicago O'Hare Intl to Las Vegas Harry Reid Intl for the best Chicago - Las Vegas Harry Reid Intl flight prices

You are more likely to see cheaper flights to Las Vegas from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around £213 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Chicago for as low as £170 on momondo.

There are 3 cabin classes available to choose from on Chicago to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Chicago to Las Vegas.

As of March 2026, prices for Chicago to Las Vegas flights are approximately 20% more expensive when compared to flights at the same time last year.

Historically, on average around 17% of flights between Chicago and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

As of March 2026, there are 38 flights per day flying from Chicago to Las Vegas. The most common time of day flights depart is 20:00, with 41% of flights taking off in the evening.

The number of flights available between Chicago and Las Vegas is 268 per week as of March 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.