Question 1

What are the cheapest airlines flying from Chicago to Las Vegas round-trip?

Accepted Answer

Flying on Southwest is currently your cheapest option to Las Vegas, with prices starting at £98. Additional return tickets that might be worth considering are offered by Spirit Airlines and Hawaiian Airlines, with the lowest prices starting at £104 and £125, respectively. Southwest is priced at 46% lower than the current average price of a flight leaving 3 months from now.

Question 2

What are the cheapest airlines to fly from Chicago to Las Vegas one-way?

Accepted Answer

The cheapet airlines for a one-way flight from Chicago to Las Vegas are Southwest (£49), United Airlines (£59), and Frontier (£59).

Question 3

How far ahead should I book a flight from Chicago to Las Vegas?

Accepted Answer

The best time to book flights from Chicago to Las Vegas is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 4

What is the cheapest month to book a flight from Chicago to Las Vegas?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Chicago to Las Vegas (average of £689). Flying from Chicago to Las Vegas in July is currently the most expensive (average of £1,020). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from Chicago to Las Vegas?

Accepted Answer

Travellers seeking maximum savings on their Chicago to Las Vegas flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Chicago to Las Vegas

Accepted Answer

The most flights from CHI to LAS are scheduled on a Monday (60 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Las Vegas ranges from 3.0 - 20.0 inches per month. February is typically the wettest month, when rainfall can reach 20.0 mm. May is typically the driest time to visit Las Vegas when rainfall is around 3.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 34.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

Question 9

What are the cheapest flights from Chicago to Las Vegas?

Accepted Answer

While on average a flight from Chicago to Las Vegas is generally £91, our data shows the cheapest flight currently is £46. When looking at the most popular route, (Chicago O'Hare Intl - Las Vegas Harry Reid Intl), you can expect to pay £149 for that flight.

Question 10

What are the most reliable airlines from Chicago to Las Vegas?

Accepted Answer

Consider Brussels Airlines (88%), Air Canada (88%) or Spirit Airlines (87%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Las Vegas.

Question 11

What is the cheapest day to fly round-trip from Chicago to Las Vegas?

Accepted Answer

Thursday is generally a great day to depart. Flying on this day could help you save up to 172%.

Question 12

How far in advance should I book a flight from Chicago to Las Vegas?

Accepted Answer

Users have found that booking a flight from Chicago to Las Vegas at least 41 days early can save you up to 48% on average compared to booking a flight this week. If booking 41 days before your flight isn’t an option for you, users have found flights from Chicago to Las Vegas for as little as £161 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £253 for flights departing within the next 3 days.

Question 13

What is the cheapest month to fly from Chicago to Las Vegas?

Accepted Answer

Our data shows that August tends to be the cheapest month to fly to Las Vegas from Chicago. Users have commonly found prices around £185 for the month, but tickets can be as low as £54. Due to multiple factors, prepare for potentially higher prices in March.

Question 14

What is the cheapest time of day to fly from CHI to LAS?

Accepted Answer

When flying from Chicago to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 13% versus a flight at midday.

Question 15

What airport do you fly into for flights to Las Vegas from Chicago?

Accepted Answer

Las Vegas Harry Reid Intl (LAS) is the airport you will fly into if you book a flight from Chicago to Las Vegas. You should not have trouble finding flights to Harry Reid Intl from Chicago; the airport handles an average of 40 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Las Vegas airport from Chicago. It is only a 6.2 mi journey from Harry Reid Intl (LAS) to Las Vegas’s city center.

Question 16

Can I find deals for flights from Chicago to Las Vegas that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Chicago to Las Vegas flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 17

How can I find direct flights from Chicago to Las Vegas?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Las Vegas.

Question 18

Can I find deals for business class flights from Chicago to Las Vegas?

Accepted Answer

Yes. Cheapflights offers flight deals from Chicago to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 19

How does Cheapflights help users find flights from Chicago to Las Vegas?

Accepted Answer

Deals for Chicago to Las Vegas flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 20

Why should you use Cheapflights to find cheap flight tickets from Chicago to Las Vegas?

Accepted Answer

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chicago to Las Vegas.

Question 21

Can Cheapflights find flights from Chicago to Las Vegas with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from Chicago to Las Vegas with no change fees.

Question 22

Can Cheapflights notify me if prices for flights from Chicago to Las Vegas become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Las Vegas from Chicago today and book when prices fit your budget.

Round-trip from	£98
One-way from	£49
Popular in	March
Cheapest in	August
Average price	£187
Good one-way deal	£72 or less

Cheap flights from Chicago to Las Vegas from £49

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Chicago to Las Vegas Harry Reid Intl are usually found in August or September, booked 40 days in advance, depart on a Friday or Tuesday and return on a Monday

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Cheapest flights from Chicago to Las VegasExplore the most affordable flight options available from Chicago to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 July 2025.

Explore the most affordable flight options available from Chicago to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 July 2025.

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Best time to book a flight from Chicago to Las Vegas

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Everything you need to know about your flight from Chicago to Las Vegas

How far ahead should I book a flight from Chicago to Las Vegas?

Use this chart to determine the optimal time to book a return flight from Chicago to Las Vegas. Price data was last updated on 27 June 2025.

What is the cheapest month to book a flight from Chicago to Las Vegas?

What is the cheapest time of day to fly from CHI to LAS?

Find hourly flight availability from Chicago to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 July 2025.

Weekly flight availability from Chicago to Las Vegas

Explore weekly flight availability from Chicago to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 8 July 2025.

Reviews of airlines servicing Las Vegas

See what other customers who have flown with Alaska Airlines, Southwest, andDelta from Chicago to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Las Vegas from Chicago?

What are the cheapest airlines flying from Chicago to Las Vegas round-trip?

What are the cheapest airlines to fly from Chicago to Las Vegas one-way?

What are the most reliable airlines from Chicago to Las Vegas?

What are the cheapest flights from Chicago to Las Vegas?

Can I find deals for flights from Chicago to Las Vegas that include hotel bookings?

How can I find direct flights from Chicago to Las Vegas?

Can I find deals for business class flights from Chicago to Las Vegas?

What is the cheapest month to book a flight from Chicago to Las Vegas?

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Can Cheapflights notify me if prices for flights from Chicago to Las Vegas become cheaper?

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Cheapest flights from Chicago to Las Vegas
Explore the most affordable flight options available from Chicago to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 July 2025.