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$50+ Cheap flights from Illinois 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAS
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Illinois to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 November 20, 2024.

Find flight deals from Illinois to Las Vegas

Cheapest flights from Illinois to Las Vegas
Explore the most affordable flight options available from Illinois to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Sat 12/79:10 pmORD - LAS
Nonstop4h 10mSpirit Airlines
Sat 12/1411:58 pmLAS - ORD
Nonstop3h 32mSpirit Airlines
Deal found 11/19$106
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/812:43 pmMDW - LAS
Nonstop4h 24mFrontier
Thu 12/126:11 amLAS - MDW
Nonstop3h 37mFrontier
Deal found 11/19$106
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Mon 12/98:25 pmORD - LAS
Nonstop4h 24mMultiple Airlines
Thu 12/128:51 amLAS - ORD
Nonstop3h 35mMultiple Airlines
Deal found 11/19$107
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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.
Sun 12/86:36 pmORD - LAS
Nonstop4h 24mFrontier
Fri 12/131:06 pmLAS - ORD
1 stop9h 39mFrontier
Deal found 11/19$111
This Gotogate deal was found by Cheapflights users on 11/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/159:34 pmMLI - LAS
Nonstop3h 40mAllegiant Air
Thu 12/194:01 pmLAS - MLI
Nonstop3h 15mAllegiant Air
Deal found 11/19$114
This Frontier deal was found by Cheapflights users on 11/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:46 pmSTL - LAS
1 stop7h 16mFrontier
Tue 12/109:53 pmLAS - STL
1 stop8h 20mFrontier
Deal found 11/19$128
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1512:45 pmRFD - LAS
Nonstop3h 52mAllegiant Air
Thu 12/196:25 amLAS - RFD
Nonstop3h 25mAllegiant Air
Deal found 11/19$154
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:46 pmSTL - LAS
1 stop7h 08mMultiple Airlines
Mon 12/1610:27 pmLAS - STL
1 stop14h 54mMultiple Airlines
Deal found 11/20$155
This Southwest deal was found by Cheapflights users on 11/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:35 pmMDW - LAS
Nonstop4h 00mSouthwest
Thu 12/126:50 pmLAS - MDW
Nonstop3h 25mSouthwest
Deal found 11/19$170
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/68:39 pmPIA - LAS
Nonstop3h 46mAllegiant Air
Fri 12/132:34 pmLAS - PIA
Nonstop3h 15mAllegiant Air
Deal found 11/19$192
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:26 pmORD - LAS
Nonstop4h 06mAmerican Airlines
Tue 12/1011:36 pmLAS - ORD
Nonstop3h 43mAmerican Airlines
Deal found 11/19$194
This eDestinos deal was found by Cheapflights users on 11/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/77:15 amMDW - LAS
2 stops25h 24mMultiple Airlines
Mon 12/910:54 amLAS - MDW
2 stops35h 19mMultiple Airlines
Deal found 11/19$204

Find flights from Illinois to Las Vegas within your budget

Customize your flight search to find flights from Illinois 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 1/6

10:59 am-3:29 pm

1 stop30h 30m

Las Vegas Harry Reid Intl

Thu 1/9

1:43 pm-11:49 pm

1 stop8h 06m

$106

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Sun 12/8

12:43 pm-3:07 pm

Nonstop4h 24m

Las Vegas Harry Reid Intl

Thu 12/12

6:11 am-11:48 am

Nonstop3h 37m

$106

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 12/9

8:25 pm-10:49 pm

Nonstop4h 24m

Las Vegas Harry Reid Intl

Thu 12/12

8:51 am-2:26 pm

Nonstop3h 35m

$107

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 1/11

10:47 pm-12:54 am

Nonstop4h 07m

Las Vegas Harry Reid Intl

Wed 1/22

11:50 pm-5:30 am

Nonstop3h 40m

$112

MolineLas Vegas

MLI - LAS

MLILAS

Moline Quad-City

Sun 12/15

9:34 pm-11:14 pm

Nonstop3h 40m

Las Vegas Harry Reid Intl

Thu 12/19

4:01 pm-9:16 pm

Nonstop3h 15m

$114

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 1/6

6:49 pm-8:07 am

1 stop15h 18m

Las Vegas Harry Reid Intl

Thu 1/9

9:53 pm-9:06 am

1 stop9h 13m

$126

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

Sun 12/15

12:45 pm-2:37 pm

Nonstop3h 52m

Las Vegas Harry Reid Intl

Thu 12/19

6:25 am-11:50 am

Nonstop3h 25m

$154

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Tue 12/10

8:35 pm-10:35 pm

Nonstop4h 00m

Las Vegas Harry Reid Intl

Thu 12/12

6:50 pm-12:15 am

Nonstop3h 25m

$170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 12/6

6:46 pm-8:41 pm

1 stop27h 55m

Las Vegas Harry Reid Intl

Mon 12/9

10:27 pm-3:21 pm

1 stop14h 54m

$179

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Fri 12/6

8:39 pm-10:25 pm

Nonstop3h 46m

Las Vegas Harry Reid Intl

Fri 12/13

2:34 pm-7:49 pm

Nonstop3h 15m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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Best time to book a flight from Illinois to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Illinois 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.

Travel insights for flights from Illinois to Las Vegas

Get recent, data-driven insights about flights from Illinois to Las Vegas including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Las Vegas (average of $198). Flying from Illinois to Las Vegas in May is currently the most expensive (average of $256). 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 IL to LAS?

Find hourly flight availability from Illinois 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 November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Las Vegas as you normally would.

Weekly flight availability from Illinois to Las Vegas

Explore weekly flight availability from Illinois 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 November 20, 2024.

The most flights from USIL to LAS are scheduled on a Wednesday (32 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 November 20, 2024.
Read reviews from past customers who have flown Spirit Airlines, Frontier and Allegiant Air from Illinois to Las Vegas. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

WestJet
7.3
Good
2,811 reviews
Southwest
8.1
Very good
5,014 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Illinois to Las Vegas.

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

    The cheapest airlines for a one-way flight from Illinois to Las Vegas are Spirit Airlines ($50), Frontier ($50), and Southwest ($85).

  • What are the most popular routes from Illinois to Las Vegas?

    While some choose either Chicago Midway - Las Vegas Harry Reid Intl or Lambert-St Louis - Las Vegas Harry Reid Intl, Chicago O'Hare Intl - Las Vegas Harry Reid Intl is the most popular route from Illinois to Las Vegas.

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

    The top 3 most reliable airlines when flying from Illinois to Las Vegas are Southwest (96%), United Airlines (90%) and Aer Lingus (87%).

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

    Looking at all options, your cheapest flight can be booked for $49. While the most popular route (Chicago O'Hare Intl - Las Vegas Harry Reid Intl) can be booked for $81 on average our data indicates $741 when flying from Illinois to Las Vegas.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Las Vegas (average of $198). Flying from Illinois to Las Vegas in May is currently the most expensive (average of $256). 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.

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Alternative routes for Illinois to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Illinois to Las Vegas

Discover the top 9 airlines that operate flights from Illinois 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$185FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$70Average$199FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$116Average$234FlexibilityNo cancel feeOn-time88%
Sun Country AirCheapest$118Average$300FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$178Average$474FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$194Average$471FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$343FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$404FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$240Average$303FlexibilityNo cancel feeOn-time75%
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