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Cheap flights from Chicago to Las Vegas from £46

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LAS
23 marras — 30 marras1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Chicago to Las Vegas Harry Reid Intl are usually found in January or February, booked 30 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap flight deals from Chicago to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 lokakuu 2025.

Round-trip from

£103

One-way from

£46

Popular in

March

Cheapest in

January

Average price

£201
United Airlines
  • United Airlines
  • 29/1-1/2
  • Nonstop
  • 7h 50m total
  • Chicago to Las Vegas
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United Airlines
  • United Airlines
  • 15/12
  • Nonstop
  • 4h 09m total
  • Chicago to Las Vegas
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£0 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Chicago to Las Vegas

Enter your travel dates to find the best prices.

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 24 lokakuu 2025.

ti 2/1219:44ORD - LAS
Nonstop4h 14mUnited Airlines
to 4/1223:59LAS - ORD
Nonstop3h 34mUnited Airlines
Deal found 22/10£105
su 16/1110:35ORD - LAS
Nonstop4h 07mUnited Airlines
ke 19/1107:15LAS - ORD
Nonstop3h 42mUnited Airlines
Deal found 22/10£106
ma 8/1212:59ORD - LAS
Nonstop4h 16mFrontier
to 11/1200:59LAS - ORD
1 stop21h 13mFrontier
Deal found 22/10£108
pe 12/1220:02ORD - LAS
Nonstop4h 12mUnited Airlines
su 14/1217:03LAS - ORD
Nonstop3h 42mUnited Airlines
Deal found 23/10£109
ke 19/1107:15ORD - LAS
Nonstop4h 05mSouthwest
pe 21/1116:55LAS - ORD
Nonstop3h 40mSouthwest
Deal found 21/10£112
ke 10/1219:44ORD - LAS
Nonstop4h 14mUnited Airlines
ma 15/1223:59LAS - ORD
Nonstop3h 34mUnited Airlines
Deal found 23/10£115
to 4/1207:30ORD - LAS
Nonstop4h 09mUnited Airlines
ti 9/1223:59LAS - ORD
Nonstop3h 34mUnited Airlines
Deal found 21/10£115
su 7/1212:59ORD - LAS
Nonstop4h 16mFrontier
su 14/1207:00LAS - ORD
2 stops15h 12mFrontier
Deal found 23/10£118
ti 23/1207:15ORD - LAS
Nonstop4h 05mSouthwest
ti 27/109:45LAS - ORD
Nonstop3h 40mSouthwest
Deal found 23/10£119
ma 8/1212:59ORD - LAS
Nonstop4h 16mMultiple Airlines
pe 12/1223:45LAS - ORD
2 stops16h 51mMultiple Airlines
Deal found 22/10£120
la 13/1215:05ORD - LAS
1 stop20h 39mAlaska Airlines
ke 17/1210:25LAS - ORD
1 stop11h 25mAlaska Airlines
Deal found 23/10£127
la 6/1215:05ORD - LAS
1 stop9h 22mAlaska Airlines
ke 10/1214:57LAS - ORD
1 stop6h 53mAlaska Airlines
Deal found 22/10£129

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chicago to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 lokakuu 2025.
Use the filters below to find and compare flights from Chicago to Las Vegas that are best for you.

Fly from

Chicago

Fly to

Las Vegas

Route

Depart

Return

Price

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

la 14/2

19:45-22:02

Nonstop4h 17m

Las Vegas Harry Reid Intl

ti 17/2

17:22-22:59

Nonstop3h 37m

£120

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

to 5/2

15:25-23:28

1 stop10h 03m

Las Vegas Harry Reid Intl

ti 10/2

10:31-23:37

1 stop11h 06m

£133

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

su 11/1

07:00-10:45

1 stop5h 45m

Las Vegas Harry Reid Intl

ke 14/1

00:30-06:08

Nonstop3h 38m

£134

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

ke 11/2

09:30-11:49

Nonstop4h 19m

Las Vegas Harry Reid Intl

la 21/2

16:40-23:59

1 stop5h 19m

£134

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

ke 18/2

14:05-23:51

2 stops11h 46m

Las Vegas Harry Reid Intl

la 21/2

08:00-23:10

1 stop13h 10m

£137

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

ti 23/12

20:58-15:44

1 stop20h 46m

Las Vegas Harry Reid Intl

ti 27/1

14:51-23:37

1 stop6h 46m

£138

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

to 29/1

15:25-23:28

1 stop10h 03m

Las Vegas Harry Reid Intl

la 31/1

15:22-23:37

1 stop6h 15m

£138

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

pe 12/12

15:05-09:44

1 stop20h 39m

Las Vegas Harry Reid Intl

ti 16/12

14:57-23:50

1 stop6h 53m

£139

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

la 28/2

07:30-20:41

1 stop15h 11m

Las Vegas Harry Reid Intl

ke 4/3

10:59-23:44

1 stop10h 45m

£143

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

ke 4/2

09:00-21:38

2 stops14h 38m

Las Vegas Harry Reid Intl

su 8/2

08:00-23:55

1 stop13h 55m

£144

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 23 results
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Best time to book a flight from Chicago to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Chicago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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 17 October 2025.

The best time to book flights from Chicago to Las Vegas is 30 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.

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

Currently, November is the cheapest month in which you can book a flight from Chicago to Las Vegas (average of £58). Flying from Chicago to Las Vegas in June is currently the most expensive (average of £93). 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.

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 24 lokakuu 2025.

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 at midday, which can drop the price by up to 71% versus a flight in the morning.

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 24 lokakuu 2025.

The most flights from CHI to LAS are scheduled on a Thursday (58 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost for a return flight from Chicago to Las Vegas?

What’s the top stopover airport for flights from Chicago to Las Vegas?

Share of one-stop return flights from Chicago to Las Vegas chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Minneapolis (MSP) – chosen by Cheapflights users on 67% of one-stop itineraries from Chicago to Las Vegas on Cheapflights.

What’s the cheapest stopover airport for flights from Chicago to Las Vegas?

Average return fare for one-stop flights from Chicago to Las Vegas, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

San Diego (SAN) is the most affordable one-stop option, with an average return flight price of £171.

What’s the fastest stopover option from Chicago to Las Vegas?

Shortest average travel time for one-stop one-way flights from Chicago to Las Vegas, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via San Diego (SAN) have the shortest average one-way travel time for one-stop routes: 7h 51m.

Which airport typically offers the quickest stopover for flights from Chicago to Las Vegas?

Average stopover duration for one-stop one-way flights from Chicago to Las Vegas, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Diego (SAN) offer the fastest connection on this route, with an average stopover time of 1h 29m.

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?

    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 32 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.

  • How long is the flight from Chicago to Las Vegas?

    Departing from Chicago to Las Vegas will take you 9h 06m. There are 1510 mi between Chicago and Las Vegas.

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

    Flying on Spirit Airlines is currently your cheapest option to Las Vegas, with prices starting at £33. Spirit Airlines is priced at 83% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapet airlines for a one-way flight from Chicago to Las Vegas are United Airlines (£46), Alaska Airlines (£67), and Southwest (£68).

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

    Consider Spirit Airlines (90%), Turkish Airlines (90%) or Air Canada (87%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Las Vegas.

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

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

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

    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.

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

    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.

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

    Currently, November is the cheapest month in which you can book a flight from Chicago to Las Vegas (average of £58). Flying from Chicago to Las Vegas in June is currently the most expensive (average of £93). 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.

See more FAQs

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Kingman
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Alternative routes for Chicago to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
St. Louis to Las Vegas flights

Top airline flying from Chicago to Las Vegas

Discover the top airline that operate flights from Chicago to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 lokakuu 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest£33Average£168FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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.

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

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.

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

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

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

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.

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