A highway interchange with multiple overpasses, a parking garage, and a large building with a distinctive roof.

Cheap Flights from Chicago (ORD) to Las Vegas (LAS)

View AU$196 flight on Tue, 26 Jan 2027Opens in a new window

Popular airlines from Chicago O'Hare International Airport (ORD) to Harry Reid Intl. Airport (LAS)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Chicago (ORD) to Las Vegas (LAS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, 17 Aug - Thu, 20 Aug
ORD
Chicago
LAS
Las Vegas
AU$386 Return, found 6 days ago
AU$386
Return
found 6 days ago
Select Alaska Airlines flight, departing Mon, 17 Aug from Chicago to Las Vegas, returning Thu, 20 Aug, priced at AU$386 found 6 days ago
Alaska Airlines
Wed, 26 Aug - Wed, 2 Sept
ORD
Chicago
LAS
Las Vegas
AU$391 Return, found 4 days ago
AU$391
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 26 Aug from Chicago to Las Vegas, returning Wed, 2 Sept, priced at AU$391 found 4 days ago
Alaska Airlines
Wed, 16 Sept - Fri, 18 Sept
ORD
Chicago
LAS
Las Vegas
AU$392 Return, found 1 day ago
AU$392
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 16 Sept from Chicago to Las Vegas, returning Fri, 18 Sept, priced at AU$392 found 1 day ago
Delta
Mon, 17 Aug - Thu, 20 Aug
ORD
Chicago
LAS
Las Vegas
AU$396 Return, found 6 days ago
AU$396
Return
found 6 days ago
Select Delta flight, departing Mon, 17 Aug from Chicago to Las Vegas, returning Thu, 20 Aug, priced at AU$396 found 6 days ago
United
Mon, 17 Aug - Thu, 20 Aug
ORD
Chicago
LAS
Las Vegas
AU$398 Return, found 6 days ago
AU$398
Return
found 6 days ago
Select United flight, departing Mon, 17 Aug from Chicago to Las Vegas, returning Thu, 20 Aug, priced at AU$398 found 6 days ago
American Airlines
Sat, 26 Sept - Sat, 3 Oct
ORD
Chicago
LAS
Las Vegas
AU$405 Return, found 4 hours ago
AU$405
Return
found 4 hours ago
Select American Airlines flight, departing Sat, 26 Sept from Chicago to Las Vegas, returning Sat, 3 Oct, priced at AU$405 found 4 hours ago
American Airlines
Sat, 29 Aug - Sat, 5 Sept
ORD
Chicago
LAS
Las Vegas
AU$406 Return, found 1 day ago
AU$406
Return
found 1 day ago
Select American Airlines flight, departing Sat, 29 Aug from Chicago to Las Vegas, returning Sat, 5 Sept, priced at AU$406 found 1 day ago
American Airlines
Sat, 15 Aug - Mon, 17 Aug
ORD
Chicago
LAS
Las Vegas
AU$408 Return, found 11 hours ago
AU$408
Return
found 11 hours ago
Select American Airlines flight, departing Sat, 15 Aug from Chicago to Las Vegas, returning Mon, 17 Aug, priced at AU$408 found 11 hours ago
Alaska Airlines
Mon, 17 Aug - Thu, 20 Aug
ORD
Chicago
LAS
Las Vegas
AU$410 Return, found 6 days ago
AU$410
Return
found 6 days ago
Select Alaska Airlines flight, departing Mon, 17 Aug from Chicago to Las Vegas, returning Thu, 20 Aug, priced at AU$410 found 6 days ago
Alaska Airlines
Mon, 17 Aug - Thu, 20 Aug
ORD
Chicago
LAS
Las Vegas
AU$411 Return, found 6 days ago
AU$411
Return
found 6 days ago
Select Alaska Airlines flight, departing Mon, 17 Aug from Chicago to Las Vegas, returning Thu, 20 Aug, priced at AU$411 found 6 days ago

Find the cheapest month to fly from Chicago (ORD) to Las Vegas (LAS)

September is typically the cheapest month to fly

From AU$131 - AU$445 per traveller.

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) cost?
You can find cheap one-way flights from AU$196 and cheap return flights from AU$386 ORD to LAS with Expedia. One-way flights typically cost between AU$418 and AU$1,379 and return flights often range between AU$477 and AU$1,486. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when ORD to LAS ticket fares go up or down.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
August is typically the cheapest month to fly from Chicago O'Hare International Airport (ORD) to Harry Reid International Airport (LAS), with average return fares around AU$362. August often sees lower prices as it's just after the peak summer travel season, leading to reduced demand. February and September are also good months to find deals on this route.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
There are 5 airlines offering direct flights from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.). Here are the top carriers:
  • United operates 72 direct flights from ORD to LAS every week.
  • American Airlines operates 43 direct flights from ORD to LAS every week.
  • Southwest Airlines operates 17 direct flights from ORD to LAS every week.
  • Frontier Airlines operates 9 direct flights from ORD to LAS every week.
  • Spirit Airlines operates 7 direct flights from ORD to LAS every week.
How do I find cheap flights from Chicago, IL (ORD) to Las Vegas, NV (LAS)?
To find a cheap flight from Chicago, IL (ORD) to Las Vegas, NV (LAS), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. United offers the most daily flights from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD) to Las Vegas, NV (LAS)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
You'll find approximately 20 nonstop flights per day from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.). For even more choices, look at flights that include layovers, as there are around 190 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The earliest flight from Chicago O'Hare International Airport (ORD) to Las Vegas Harry Reid International Airport (LAS) typically departs around 12:00 AM local time, operated by American Airlines. This is a seasonal service active in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
You'll find the most flights from Chicago O'Hare International Airport (ORD) to Harry Reid International Airport (LAS) on a Thursday, with around 129 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Thursdays offer notably more flight options compared to other days of the week, making it a great day to consider for your trip.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Alaska Airlines and United, offer flights during this window. Many travelers prefer these times because you can arrive in Las Vegas early, giving you more time to enjoy your destination.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
A non-stop flight from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) typically takes around 4 hours 18 minutes. This route covers a distance of approximately 2,432 kilometers. If you opt for a flight with one stop, your journey will usually take longer, around 8 hours. Flights with two or more stops generally take about 8 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
You can fly business class or first class between ORD and LAS. Airlines that offer business class service on this route include:

  • Frontier Airlines
  • Delta

First class cabins are available on:

  • Spirit Airlines
  • Alaska Airlines
  • United
  • Delta
  • American Airlines

How do I earn miles on a Chicago, IL (ORD) to Las Vegas, NV (LAS) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD) to Las Vegas, NV (LAS) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Las Vegas, NV (LAS) from Chicago, IL (ORD)?
If you're planning to travel to Las Vegas from O'Hare Intl. (ORD), you can fly directly into Harry Reid International Airport (LAS). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), or Love Field (DAL) before reaching Las Vegas. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD) to Las Vegas, NV (LAS) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD) to Las Vegas, NV (LAS) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD) to Las Vegas, NV (LAS) flight and hotel package?
Securing a Chicago, IL (ORD) to Las Vegas, NV (LAS) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD) to Las Vegas, NV (LAS)?
If you booked your Chicago, IL (ORD) to Las Vegas, NV (LAS) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$386
Distance
2417 km
Average flight time
1 hour 58 mins

Book with confidence

Your quick guide to flights from Chicago to Las Vegas

Pick up great flights from Chicago to Las Vegas

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Chicago to Las Vegas. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Chicago to Las Vegas that take around hours.

Find cheap flights from Chicago to Las Vegas

From the great flight deals with prices currently ranging from AU$386 to AU$411, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Chicago to Las Vegas around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Las Vegas is normally in August.

Reasons to book your flight from Chicago to Las Vegas with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Chicago to Las Vegas across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Las Vegas right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Chicago to Las Vegas

Explore a world of travel with Expedia

*Available to Expedia members.