CHI - LAS

$122 Find Cheap Flights from Chicago to Las Vegas - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Las Vegas departing on 7/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$229
Typical prices: $252-$311
Allegiant Air
Sun 7/19Thu 7/23
RFD - LAS • Non-stop
Cheapest one-way
$122
Typical prices: $118-$166
Allegiant Air
Thu 7/30
RFD - LAS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Frontier Economy Bundle adds a carry-on and seat choice for budget value.
United Economy Plus adds legroom; book seat selection early when available.
Expert advice
Expert advice
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Expert advice
Expert advice
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Nonstop flights
You can fly direct with American Airlines, Frontier and others. Average duration is 3h 54m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest • 35% average savings
Most popular
Insights
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Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
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Top layover airports
Cheapest • Avg $181 (round-trip)
Shortest trip • 5h 50m (one-way)
Insights
Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Chicago to Las Vegas (CHI-LAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Las Vegas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Las Vegas

Sun, Jul 19 - Thu, Jul 23
Allegiant Air Logo
1:14 pm - 2:53 pm
RFD
-
LAS
3h 39mnonstop
Allegiant Air Logo
7:00 am - 12:24 pm
LAS
-
RFD
3h 24mnonstop
$229Allegiant Air
Sat, Aug 15 - Mon, Aug 17
Multiple Airlines Logo
7:29 am - 9:37 am
ORD
-
LAS
4h 08mnonstop
Multiple Airlines Logo
2:38 pm - 11:36 pm
LAS
-
ORD
6h 58m
1 stop
$229Multiple Airlines
Tue, Aug 11 - Fri, Aug 14
Southwest Logo
10:10 am - 1:25 pm
MDW
-
LAS
5h 15m
1 stop
Southwest Logo
10:00 am - 5:00 pm
LAS
-
MDW
5h 00m
1 stop
$229Southwest
Tue, Aug 25 - Fri, Sep 4
Frontier Logo
8:45 am - 3:05 pm
ORD
-
LAS
8h 20m
1 stop
Frontier Logo
12:56 pm - 7:02 pm
LAS
-
ORD
4h 06mnonstop
$230Frontier
Sun, Jul 19 - Thu, Jul 23
Allegiant Air Logo
1:14 pm - 2:53 pm
RFD
-
LAS
3h 39mnonstop
Allegiant Air Logo
7:00 am - 12:24 pm
LAS
-
RFD
3h 24mnonstop
$230Allegiant Air
Sun, Sep 6 - Wed, Sep 9
Southwest Logo
3:25 pm - 5:10 pm
MDW
-
LAS
3h 45mnonstop
Southwest Logo
7:55 am - 1:30 pm
LAS
-
MDW
3h 35mnonstop
$231Southwest
Sat, Aug 8 - Sat, Aug 15
Frontier Logo
7:29 am - 9:37 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
1:43 pm - 6:17 am
LAS
-
ORD
14h 34m
1 stop
$231Frontier
Thu, Sep 10 - Sun, Sep 13
Allegiant Air Logo
9:29 pm - 11:08 pm
RFD
-
LAS
3h 39mnonstop
Allegiant Air Logo
3:15 pm - 8:39 pm
LAS
-
RFD
3h 24mnonstop
$231Allegiant Air
Sat, Aug 8 - Sat, Aug 15
Delta Logo
6:00 am - 10:33 am
ORD
-
LAS
6h 33m
1 stop
Delta Logo
6:20 am - 3:30 pm
LAS
-
ORD
7h 10m
1 stop
$237Delta
Thu, Aug 13 - Wed, Aug 19
Delta Logo
12:46 pm - 7:46 pm
MDW
-
LAS
9h 00m
1 stop
Delta Logo
1:20 pm - 10:36 pm
LAS
-
MDW
7h 16m
1 stop
$237Delta
Booking Insights

KAYAK's insights & trends for Chicago to Las Vegas flights

Get data-powered insights and trends into flights from Chicago to Las Vegas to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago to Las Vegas?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Las Vegas departing in July.

What is the cheapest Chicago to Las Vegas flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Chicago to Las Vegas costs $134 on the route between Chicago Greater Rockford Airport (RFD) and Las Vegas (LAS). Over the past month, this route was, on average, 35% cheaper than other Chicago-Las Vegas routes. The most popular route is between Chicago O'Hare Intl Airport (ORD) and Las Vegas (LAS).

What’s the cheapest day of the week to fly from Chicago to Las Vegas?

The average price of all round-trip flights from Chicago to Las Vegas clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Las Vegas on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Chicago to Las Vegas. For your return ticket, we recommend flying on a Friday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Las Vegas, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Las Vegas is January, where tickets cost $223 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $383 and $365 respectively.

Can I save money by flying with a layover from Chicago to Las Vegas?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $331, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Las Vegas, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Las Vegas, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Expert advice

Expert advice for your flight from Chicago to Las Vegas

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Frontier, ORD and MDW

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and LAS

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonJanuary
Cheapest flight$122
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Chicago Greater Rockford to Las Vegas

When to book flights from Chicago to Las Vegas

Are your dates flexible? Find out the best times to travel from Chicago to Las Vegas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Chicago to Las Vegas: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Chicago to Las Vegas 
Verified travelerFlew with United Airlines
ORD
-
LAS
Mar 2025
If you can select your seats in advance please do
Verified travelerFlew with Spirit Airlines
ORD
-
LAS
Sep 2024
Make sure you get your seats booked at time of booking or at the least when you check in and make sure you check in at the earliest to have preferred seating.

FAQs for booking flights from Chicago to Las Vegas

  • Does McCarran International Airport have a military lounge?

    There are currently two USO Military Lounges at McCarran International Airport, which are located in Terminals 1 and 3. These lounges offer complimentary access to all active military members and their families, and they provide guests with drinks, snacks, high-speed WiFi and television access.

  • Where can I take a shower at Harry Reid International Airport (LAS)?

    If you would like to freshen up and take a shower after your flight lands at Harry Reid International Airport (LAS), you can pay a visit to the ZEROlevel Fitness center that is located in Terminal 1. This gym has showers, saunas, secure lockers, fitness equipment and massages, making it a convenient place to refuel after a long day of traveling.

  • What dining options are there at Chicago O’Hare International Airport (ORD)?

    Moe's Southwest Grill is a casual American-style restaurant located near Concourse C of Terminal 1, while Fresh Attractions offers healthy to-go food and is located near Concourse H of Terminal 6. Sammy's Beach Bar & Grill serves tropical-inspired foods and quirky cocktails with a chill vibe. It is located at Terminal 1 A, B and C Gates.

  • How far is Harry Reid International Airport (LAS) from downtown Las Vegas?

    Harry Reid International Airport (LAS) is located approximately 7 miles from downtown Las Vegas, making it a 20-minute drive when there is no additional traffic. If you opt to use public transportation to travel between these two destinations, such as the local bus, the trip will take upwards of 1 hour.

  • Is there public transportation from Las Vegas Harry Reid International Airport (LAS) to downtown Las Vegas?

    Downtown Las Vegas and Las Vegas Harry Reid International Airport (LAS) are about 6.6 miles apart. The northbound Centennial Express (CX) line offers the most convenient means of transportation between these two points, covering the distance in 22min.

  • Which is the best arrival airport if I want to visit the Caesar's Palace?

    Harry Reid International Airport (LAS) is the main airport serving Las Vegas. Caesar's Palace lies about 3.6 miles from LAS, and the best way to reach this massive complex in the middle of the Strip is via rental car, which takes 19min. Lyft rides provide another option to this locale.

  • Are there car rentals from Harry Reid International Airport (LAS) to downtown Las Vegas?

    If you’re looking to rent a car after arriving at Harry Reid International Airport (LAS), you’ll have several options to choose from. After arrival, you’ll find your car at the McCarran Rent-A-Car Center, about three miles from LAS, just off interstates 15 and 215. Consider booking your car in advance for a hassle-free encounter at the collection garage.

  • Are there any services for passengers with limited mobility at the Las Vegas Airport upon their arrival?

    LAS provides special services to passengers with disabilities and mobility limitations. However, it may be helpful to make early arrangements with your airline to enjoy these services. There are wheelchairs to help when moving around the airport, and those with social and communication challenges are attended to, too.

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

    In the last 5 days, the lowest price for a flight from Chicago to Las Vegas was $122 for a one-way ticket and $229 for a round-trip.

  • Do I need a passport to fly between Chicago and Las Vegas?

    A passport is not required to fly from Chicago to Las Vegas.

  • Which airports will I be using when flying from Chicago to Las Vegas?

    Chicago is served by 3 major airports and there is only 1 main airport in Las Vegas. You will leave Chicago from one of these airports: Chicago Midway, Chicago O'Hare Intl, or Chicago Greater Rockford. You will be arriving at Las Vegas Harry Reid Intl.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Las Vegas?

    American Airlines, and JetBlue offer inflight Wi-Fi service on the Chicago to Las Vegas flight route.

  • Which aircraft models fly most regularly from Chicago to Las Vegas?

    The Airbus A321neo is the aircraft model that flies most regularly on the Chicago to Las Vegas flight route.

  • Which airline alliances offer flights from Chicago to Las Vegas?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Las Vegas, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Chicago to Las Vegas?

    There are nonstop flights from Chicago to Las Vegas on a daily basis.

  • Which is the best airline for flights from Chicago to Las Vegas, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Las Vegas are Southwest and Alaska Airlines. With an average price for the route of $366 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $348 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Chicago to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Las Vegas

  • Looking for a cheap flight? 25% of our users found flights on this route for $159 or less one-way and $275 or less round-trip.
  • Need to quickly charge your phone or laptop before leaving Harry Reid International Airport (LAS) to head to your final destination? Look for one of the ChargeCarte Rapid Charger centers that are located throughout the airport’s different terminals. These charging centers only cost a small fee and will allow you to charge your electronics up to two times faster than normal outlets.
  • There are several public transportation options that link downtown Chicago and Midway International Airport (MDW). The Orange Line train service provides frequent services between the two destinations every day, with a journey time of between 20-25min.
  • Those departing from Chicago Midway International Airport (MDW) can spare time and explore the facility's three concourses: A, B and C. If you're on a shopping spree, you'll be glad to know that there are over 20 retail shops spread at various concourses. For instance, stop at Concourse A and pick up goods at Chicago Sports.
  • There are several fabulous hotels near major airports in Chicago known for their excellent courtesy shuttles to and from the airport. If you’ll be departing from O'Hare International Airport (ORD), consider booking a room at the cozy Residence Inn By Marriott O'Hare or the majestic Hampton Inn Chicago – O'Hare. A night at any of those facilities is handy if you have an early morning departure.
  • Planning on booking flights from Chicago to Las Vegas? There are two primary airports that you can depart from: O’Hare International Airport and Chicago Midway International Airport. While Chicago O’Hare International Airport (ORD) is slightly removed from the city, it does offer a high concentration of direct flights between these two destinations. Chicago Midway International Airport (MDW) is known for being a smaller option but is located only 10 miles from the city center.
  • If you’re planning to fly with United Airlines from Chicago to Los Angeles, bear in mind that the airline’s hub is situated at Harry Reid International Airport (LAS). Passengers commuting with this carrier get access to lounges with amenities to make their experience productive and enjoyable. The lounges feature free Wi-Fi and complimentary snacks.
  • If you would like your flight from Chicago to Las Vegas to be direct, there are several different airlines that you can choose from. While Frontier Airlines offers particularly budget-friendly tickets, Southwest is known for allowing customers to check up to two bags for free.
  • Harry Reid International Airport (LAS) is equipped with Mamava nursing suites for nursing moms to enjoy their privacy when breastfeeding or pumping. They are located at Terminal 1 A, B, and C gates, and also at D Gates. There is also one in Terminal 3 E Gates.
  • Hoping to let your kids unwind after a long flight from Chicago to Las Vegas? Take them to the kids' play area that is located near Gate D of Harry Reid International Airport (LAS). This aviation-themed play area features a variety of games and activities that are an easy way for kids to burn off some energy after a long trip.
  • If you’re interested in learning more about the Las Vegas region, stop by the Aviation Museum that is located in Terminal 2 of Harry Reid International Airport (LAS). This museum features a variety of artifacts and exhibits related to Southern Nevada’s aviation history and is open 7 days a week.

Prefer to fly direct from Chicago to Las Vegas?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Las Vegas Harry Reid Intl.
Find which airlines fly direct from Chicago to Las Vegas Harry Reid Intl Airport, which days they fly and book direct flights.

Direct departures

Chicago to Las Vegas Harry Reid Intl

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Wednesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Thursday

Allegiant Air,American Airlines,Frontier, +2 more

Allegiant Air,American Airlines, +3 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

Allegiant Air,American Airlines,Frontier, +2 more

Allegiant Air,American Airlines, +3 more

See more direct flights

Direct returns

Las Vegas Harry Reid Intl to Chicago

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Wednesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Thursday

Allegiant Air,American Airlines,Frontier, +2 more

Allegiant Air,American Airlines, +3 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

Allegiant Air,American Airlines,Frontier, +2 more

Allegiant Air,American Airlines, +3 more

See more direct flights

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

Other airlines flying from Chicago to Las Vegas

Flights from the other most popular airlines that fly from Chicago to Las Vegas according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.