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$67+ Cheap flights from O'Hare Intl (ORD) to Las Vegas (LAS)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAS
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Las Vegas Harry Reid Intl are usually found in October or August, booked 27 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from O'Hare Intl to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 August 21, 2025.

Round-trip from

$121
(Cheapflightsfares)

One-way from

$67
(FlightHub)

Popular in

December

Cheapest in

October

Average price

$226

Good round-trip deal

$162 or less

Good one-way deal

$95 or less
From Chicago O'Hare Intl to Las Vegas Harry Reid Intl
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One-way flight from Chicago O'Hare Intl to Las Vegas Harry Reid Intl
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Las Vegas Harry Reid Intl.
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Find flight deals from O'Hare Intl to Las Vegas

Cheapest flights from O'Hare Intl to Las Vegas
Explore the most affordable flight options available from O'Hare Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:54 pmORD - LAS
Nonstop4h 11mFrontier
Fri 9/122:57 pmLAS - ORD
Nonstop4h 02mFrontier
Deal found 8/20$121
This Priceline deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:54 pmORD - LAS
Nonstop4h 05mFrontier
Fri 10/2412:55 amLAS - ORD
1 stop8h 10mFrontier
Deal found 8/20$122
This Cheapflightsfares deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:27 amORD - LAS
1 stop13h 26mSpirit Airlines
Sat 9/133:50 pmLAS - ORD
Nonstop3h 42mSpirit Airlines
Deal found 8/21$123
This Cheapflightsfares deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1011:15 amORD - LAS
Nonstop4h 01mSpirit Airlines
Thu 9/186:15 amLAS - ORD
Nonstop3h 36mSpirit Airlines
Deal found 8/21$124
This Booking.com deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:54 pmORD - LAS
Nonstop4h 11mFrontier
Sat 9/612:59 amLAS - ORD
1 stop6h 38mFrontier
Deal found 8/21$125
This Priceline deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/51:03 pmORD - LAS
Nonstop4h 19mMultiple Airlines
Sat 10/1111:49 pmLAS - ORD
Nonstop3h 46mMultiple Airlines
Deal found 8/20$127
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/319:45 pmORD - LAS
Nonstop4h 09mMultiple Airlines
Fri 9/511:19 amLAS - ORD
Nonstop3h 40mMultiple Airlines
Deal found 8/20$128
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/129:54 pmORD - LAS
Nonstop4h 05mMultiple Airlines
Sat 10/1811:39 pmLAS - ORD
Nonstop3h 46mMultiple Airlines
Deal found 8/20$129
This Cheapflightsfares deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:20 pmORD - LAS
1 stop7h 16mFrontier
Fri 11/143:45 pmLAS - ORD
Nonstop3h 58mFrontier
Deal found 8/20$131

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 2,558,603 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Las Vegas that are best for you.

Fly from

O'Hare Intl

Fly to

Las Vegas

Route

Depart

Return

Price

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/22

3:22 pm-11:27 pm

1 stop10h 05m

Las Vegas Harry Reid Intl

Fri 10/24

2:54 pm-8:54 pm

Nonstop4h 00m

$132

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 10/7

6:15 am-8:15 am

Nonstop4h 00m

Las Vegas Harry Reid Intl

Wed 10/8

6:00 pm-11:40 pm

Nonstop3h 40m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 11/24

7:30 am-9:39 am

Nonstop4h 09m

Las Vegas Harry Reid Intl

Thu 11/27

11:59 pm-5:33 am

Nonstop3h 34m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/29

6:15 am-8:15 am

Nonstop4h 00m

Las Vegas Harry Reid Intl

Wed 11/5

4:55 pm-10:35 pm

Nonstop3h 40m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 12/6

4:15 pm-6:24 pm

Nonstop4h 09m

Las Vegas Harry Reid Intl

Sat 12/13

7:15 am-12:58 pm

Nonstop3h 43m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 11/4

7:15 am-9:20 am

Nonstop4h 05m

Las Vegas Harry Reid Intl

Sat 11/8

8:25 am-2:05 pm

Nonstop3h 40m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/22

4:15 pm-6:13 pm

Nonstop3h 58m

Las Vegas Harry Reid Intl

Sat 10/25

2:32 pm-8:20 pm

Nonstop3h 48m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 11/9

7:15 am-9:20 am

Nonstop4h 05m

Las Vegas Harry Reid Intl

Thu 11/13

9:40 am-3:25 pm

Nonstop3h 45m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 10/28

7:30 am-9:39 am

Nonstop4h 09m

Las Vegas Harry Reid Intl

Sat 11/1

11:59 pm-5:33 am

Nonstop3h 34m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 9/20

3:10 pm-5:05 pm

Nonstop3h 55m

Las Vegas Harry Reid Intl

Fri 9/26

8:40 am-2:25 pm

Nonstop3h 45m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 21 results
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The best insider tips for Chicago O'Hare Intl Airport to Las Vegas flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Las Vegas trip
Airlines
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom and larger tray tables.


Spirit's Saver$ Club offers rotating deals and discounts on luggage and seats.

Read more about Spirit Airlinesby Daniel Scheffler
United Airlines

United's Economy Plus offers extra legroom seats towards the front of the economy cabin.


United's Polaris Lounges offer showers, napping areas, and dining for premium passengers.

Read more about United Airlinesby Harriet Baskas
Frontier

Frontier's UpFront Plus seats offer a guaranteed empty middle seat for extra comfort.


Frontier offers Zone 1 boarding with a carry-on bag or special fare bundle purchase.

Read more about Frontierby Marisa Garcia
Airports
ORD

For a quick snack before your flight, grab Garrett Popcorn near gate B8, a Chicago favorite.

Read more about ORDby Ramsey Qubein
LAS

For a smooth arrival at LAS, wait to request your rideshare until near the parking garage to avoid long waits.

Read more about LASby Ramsey Qubein
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and LAS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from O'Hare Intl to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from O'Hare Intl with our price prediction graph.
Estimated round-trip 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 O'Hare Intl Airport to Las Vegas

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Las Vegas. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Las Vegas, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Las Vegas (average of $198). Flying from Chicago O'Hare Intl Airport to Las Vegas in March is currently the most expensive (average of $269). 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 ORD to LAS?

Find hourly flight availability from O'Hare Intl 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 August 21, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from Chicago O'Hare Intl Airport to Las Vegas by exploring options for tickets in the evening.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Las Vegas. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Las Vegas flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated August 21, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Las Vegas, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,930 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,035 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,207 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl?

    Most people fly into Las Vegas Harry Reid Intl (LAS) if they book a flight to Las Vegas from Chicago O'Hare Intl. On average, Harry Reid Intl has 33 inbound flights from Chicago O'Hare Intl per day from 8 airlines. Las Vegas Harry Reid Intl is conveniently located just 6.2 mi from Las Vegas’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Las Vegas?

    A quick flight from Chicago O'Hare Intl Airport to Las Vegas can take about 4h. Southwest provides one of the quickest options available for as low as $159. The distance from Chicago O'Hare Intl Airport to Las Vegas is about 1510 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Las Vegas round-trip?

    Frontier, at $69, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Las Vegas.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Users have found that Frontier is 73% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Las Vegas?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to Las Vegas on time: Spirit Airlines (87%), Air Canada (80%), Turkish Airlines (80%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Las Vegas?

    On average you can expect to pay $660 for a flight from Chicago O'Hare Intl Airport to Las Vegas. The cheapest flight overall is $64 while the most popular route, (Chicago O'Hare Intl - Las Vegas Harry Reid Intl) is currently priced at $89.

  • Can I find deals for flights from O'Hare Intl to Las Vegas that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Las Vegas?

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

  • Can I find deals for business class flights from O'Hare Intl to Las Vegas?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl Airport to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Las Vegas (average of $198). Flying from Chicago O'Hare Intl Airport to Las Vegas in March is currently the most expensive (average of $269). 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

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
North Las Vegas
Sunrise Manor
Winchester
Kingman
Primm
Mount Charleston
Mesquite
Needles
Boulder City

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for O'Hare Intl to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
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O'Hare Intl to Twin Falls flights
Midway to Twin Falls flights

Top 8 airlines flying from O'Hare Intl to Las Vegas

Discover the top 8 airlines that operate flights from O'Hare Intl 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 2,558,603 searches. Data last updated August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$69Average$182FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$80Average$173FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$159Average$322FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$160Average$317FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$176Average$382FlexibilityNo cancel feeOn-time69%
DeltaCheapest$182Average$364FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$203Average$315FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$225Average$278FlexibilityNo cancel feeOn-time75%

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