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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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LAS
22 Jan — 29 Jan1
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 40 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap 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 23 December 2025.

Mon 29/1209:00ORD - LAS
1 stop7h 50mUnited Airlines
Tue 30/1200:59LAS - ORD
1 stop8h 03mUnited Airlines
Deal found 20/12£270
Wed 31/1212:55ORD - LAS
Nonstop4h 08mUnited Airlines
Wed 31/1200:59LAS - ORD
1 stop8h 03mUnited Airlines
Deal found 21/12£275
Wed 31/1220:18ORD - LAS
Nonstop4h 14mUnited Airlines
Fri 9/123:30LAS - ORD
Nonstop3h 36mUnited Airlines
Deal found 21/12£305
Mon 29/1220:18ORD - LAS
Nonstop4h 14mUnited Airlines
Wed 31/1200:59LAS - ORD
1 stop8h 03mUnited Airlines
Deal found 21/12£313
Thu 25/1208:39ORD - LAS
1 stop9h 05mAlaska Airlines
Wed 7/114:51LAS - ORD
1 stop6h 46mAlaska Airlines
Deal found 21/12£316
Wed 24/1207:30ORD - LAS
1 stop15h 15mSpirit Airlines
Fri 26/1215:47LAS - ORD
1 stop12h 18mSpirit Airlines
Deal found 21/12£317
Sun 28/1207:15ORD - LAS
Nonstop4h 05mSouthwest
Wed 7/116:55LAS - ORD
Nonstop3h 40mSouthwest
Deal found 21/12£322
Wed 31/1220:18ORD - LAS
Nonstop4h 14mUnited Airlines
Mon 5/120:20LAS - ORD
1 stop6h 17mUnited Airlines
Deal found 21/12£325
Wed 31/1216:25ORD - LAS
1 stop8h 40mSouthwest
Wed 7/116:55LAS - ORD
Nonstop3h 40mSouthwest
Deal found 21/12£330
Tue 23/1213:34ORD - LAS
1 stop12h 14mSpirit Airlines
Thu 25/1215:47LAS - ORD
1 stop12h 18mSpirit Airlines
Deal found 21/12£342

Find 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 23 December 2025.

Round-trip from

£98

One-way from

£49

Popular in

December

Cheapest in

January

Average price

£236

Good one-way deal

£141 or less
United Airlines
  • United Airlines
  • 17/1-20/1
  • Nonstop
  • 7h 46m total
  • Chicago to Las Vegas
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United Airlines
  • United Airlines
  • 17/1
  • Nonstop
  • 4h 10m 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).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a one-way flight from Chicago (CHI) to Las Vegas Harry Reid Intl.
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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 23 December 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

Wed 14/1

07:35-09:49

Nonstop4h 14m

Las Vegas Harry Reid Intl

Mon 19/1

00:30-06:08

Nonstop3h 38m

£115

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 25/1

19:45-21:59

Nonstop4h 14m

Las Vegas Harry Reid Intl

Tue 27/1

11:01-16:47

Nonstop3h 46m

£118

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 9/2

16:25-22:20

1 stop7h 55m

Las Vegas Harry Reid Intl

Sat 14/2

17:00-22:35

Nonstop3h 35m

£144

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 25/1

15:44-23:28

1 stop9h 44m

Las Vegas Harry Reid Intl

Thu 29/1

06:00-14:29

1 stop6h 29m

£148

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 11/1

09:00-15:35

1 stop8h 35m

Las Vegas Harry Reid Intl

Sat 17/1

06:00-14:29

1 stop6h 29m

£152

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 8/2

09:00-14:11

1 stop7h 11m

Las Vegas Harry Reid Intl

Fri 13/2

06:00-14:58

1 stop6h 58m

£161

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 22/1

07:35-09:49

Nonstop4h 14m

Las Vegas Harry Reid Intl

Sat 31/1

00:30-06:09

Nonstop3h 39m

£176

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 29/1

07:35-09:49

Nonstop4h 14m

Las Vegas Harry Reid Intl

Sat 31/1

12:31-18:15

Nonstop3h 44m

£176

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 23/1

21:05-23:19

Nonstop4h 14m

Las Vegas Harry Reid Intl

Sun 25/1

00:30-06:08

Nonstop3h 38m

£176

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 7/2

19:45-21:59

Nonstop4h 14m

Las Vegas Harry Reid Intl

Mon 9/2

17:14-22:58

Nonstop3h 44m

£176

Flights are sorted by cheapest return flights first.

Deals found on 22/12

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 19 December 2025.

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.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Las Vegas (average of £57). 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 23 December 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 80% 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 23 December 2025.

The most flights from CHI to LAS are scheduled on a Friday (51 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

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

How often are flights from Chicago to Las Vegas delayed?

About 15% of weekly flights between Chicago and Las Vegas have experienced delays in the past year, with the average delay time being 147 minutes.

What is the most punctual flight time for Chicago to Las Vegas flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Las Vegas flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.

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 34 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 0 airlines have 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 4h 14m. There are 1510 mi between Chicago and Las Vegas. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Consider Brussels Airlines (83%), Qatar Airways (83%) or Turkish Airlines (83%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Las Vegas.

  • What are the cheapest flights from Chicago to Las Vegas?

    While on average a flight from Chicago to Las Vegas is generally £153, our data shows the cheapest flight currently is £67. When looking at the most popular route, (Chicago O'Hare Intl - Las Vegas Harry Reid Intl), you can expect to pay £406 for that flight.

  • 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, January is the cheapest month in which you can book a flight from Chicago to Las Vegas (average of £57). 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
Furnace Creek
Henderson
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

Fly with Cheapflights

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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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