$71+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Las Vegas with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Las Vegas
Keep the following information in mind while searching for Illinois to Las Vegas flight deals. Data was last updated June 12, 2025.
Round-trip from | $110 (Cheapflightsfares) |
|---|---|
One-way from | $71 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $277 |
Good round-trip deal | $125 or less |
Good one-way deal | $79 or less |
Find flight deals from Illinois to Las Vegas
Cheapest flights from Illinois to Las VegasExplore 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 June 12, 2025.
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 June 12, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
This FlightHub deal was found by Cheapflights users on 6/12. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
This Booking.com deal was found by Cheapflights users on 6/11. 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.
This Southwest deal was found by Cheapflights users on 6/11. 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.
This American Airlines deal was found by Cheapflights users on 6/11. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Illinois to Las Vegas that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
MolineLas Vegas
MLI - LAS
MLILAS
Moline Quad-City
Sun 7/13
12:46 pm-2:08 pm
Nonstop3h 22m
Las Vegas Harry Reid Intl
Thu 7/17
6:35 am-11:46 am
Nonstop3h 11m
PeoriaLas Vegas
PIA - LAS
PIALAS
Greater Peoria
Wed 7/16
8:39 pm-10:09 pm
Nonstop3h 30m
Las Vegas Harry Reid Intl
Wed 7/23
2:29 pm-7:49 pm
Nonstop3h 20m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Wed 6/25
9:15 pm-11:19 pm
Nonstop4h 04m
Las Vegas Harry Reid Intl
Sat 6/28
5:15 am-10:50 am
Nonstop3h 35m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Sun 7/27
9:56 pm-12:05 am
Nonstop4h 09m
Las Vegas Harry Reid Intl
Thu 7/31
8:35 am-2:13 pm
Nonstop3h 38m
ChicagoLas Vegas
MDW - LAS
MDWLAS
Chicago Midway
Fri 6/27
6:25 am-8:24 am
Nonstop3h 59m
Las Vegas Harry Reid Intl
Mon 6/30
9:19 am-2:56 pm
Nonstop3h 37m
ChicagoLas Vegas
RFD - LAS
RFDLAS
Chicago Greater Rockford
Sun 7/27
12:44 pm-2:16 pm
Nonstop3h 32m
Las Vegas Harry Reid Intl
Sun 8/3
6:30 am-11:54 am
Nonstop3h 24m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Sun 7/20
6:59 pm-9:03 pm
Nonstop4h 04m
Las Vegas Harry Reid Intl
Fri 7/25
7:07 am-12:59 pm
Nonstop3h 52m
ChicagoLas Vegas
MDW - LAS
MDWLAS
Chicago Midway
Tue 7/29
11:05 am-1:00 pm
Nonstop3h 55m
Las Vegas Harry Reid Intl
Thu 7/31
12:35 pm-6:10 pm
Nonstop3h 35m
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Fri 7/4
9:56 pm-12:10 am
Nonstop4h 14m
Las Vegas Harry Reid Intl
Sun 7/13
3:00 pm-9:06 pm
Nonstop4h 06m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Wed 7/23
11:24 am-11:37 pm
1 stop14h 13m
Las Vegas Harry Reid Intl
Sat 7/26
12:20 am-9:52 am
1 stop7h 32m
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.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Las Vegas
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 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 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 June 12, 2025.
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 June 12, 2025.
The most flights from USIL to LAS are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 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 June 12, 2025.
Read reviews from past customers who have flown Breeze Airways, Alaska Airlines and Southwest from Illinois to Las Vegas. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Dena,Dec 2024
LAS - BDL
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Dena,Dec 2024
LAS - BDL
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Dena,Dec 2024
LAS - BDL
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Dena,Dec 2024
LAS - BDL
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Dena,Dec 2024
LAS - BDL
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Dena,Dec 2024
LAS - BDL
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.
Traveling to a place near Illinois?
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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.
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 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$49 | Average$183 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$70 | Average$233 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$108 | Average$369 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$110 | Average$232 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$149 | Average$449 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$159 | Average$443 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$193 | Average$310 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$198 | Average$356 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$225 | Average$278 | FlexibilityNo cancel fee | On-time75% |