$61+ Cheap flights from Las Vegas (LAS) to Illinois
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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Las Vegas to Illinois 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 Las Vegas to Illinois
Keep the following information in mind while searching for Las Vegas to Illinois flight deals. Data was last updated March 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $98 (FlightHub) |
One-way from | $61 (Frontier) |
Popular in | December |
Cheapest in | September |
Average price | $233 |
Good round-trip deal | $205 or less |
Good one-way deal | $77 or less |
Find flight deals from Las Vegas to Illinois
Cheapest flights from Las Vegas to IllinoisExplore the most affordable flight options available from Las Vegas to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.
Explore the most affordable flight options available from Las Vegas to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.
This FlightHub deal was found by Cheapflights users on 3/24. 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 3/23. 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 Frontier deal was found by Cheapflights users on 3/24. 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.
This Frontier deal was found by Cheapflights users on 3/24. 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.
This Booking.com deal was found by Cheapflights users on 3/24. 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 Frontier deal was found by Cheapflights users on 3/24. 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.
This Booking.com deal was found by Cheapflights users on 3/24. 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 Mytrip deal was found by Cheapflights users on 3/24. 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.
This American Airlines deal was found by Cheapflights users on 3/24. 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 Southwest deal was found by Cheapflights users on 3/24. 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 Priceline deal was found by Cheapflights users on 3/25. 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.
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines 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 Las Vegas to Illinois 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 March 25, 2025.
Use the filters below to find and compare flights from Las Vegas to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Thu 5/8
5:15 am-10:55 am
Nonstop3h 40m
Chicago O'Hare Intl
Mon 5/12
9:02 pm-11:07 pm
Nonstop4h 05m
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Sat 4/19
11:22 pm-5:01 am
Nonstop3h 39m
Chicago O'Hare Intl
Mon 4/21
7:41 am-9:43 am
Nonstop4h 02m
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Sat 4/19
11:22 pm-5:01 am
Nonstop3h 39m
Chicago O'Hare Intl
Mon 4/28
8:07 pm-10:39 pm
Nonstop4h 32m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Fri 5/16
9:13 am-2:48 pm
Nonstop3h 35m
Chicago Midway
Sun 5/18
6:15 am-8:18 am
Nonstop4h 03m
Las VegasMoline
LAS - MLI
LASMLI
Las Vegas Harry Reid Intl
Thu 5/1
6:40 am-11:52 am
Nonstop3h 12m
Moline Quad-City
Sun 5/18
2:08 pm-3:41 pm
Nonstop3h 33m
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 4/4
12:22 pm-5:43 pm
Nonstop3h 21m
Lambert-St Louis
Sun 4/6
1:06 pm-2:51 pm
Nonstop3h 45m
Las VegasPeoria
LAS - PIA
LASPIA
Las Vegas Harry Reid Intl
Fri 5/16
6:35 am-11:54 am
Nonstop3h 19m
Greater Peoria
Wed 5/21
8:47 pm-10:26 pm
Nonstop3h 39m
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 4/24
3:19 pm-8:46 pm
Nonstop3h 27m
Chicago Greater Rockford
Sun 4/27
9:36 pm-11:17 pm
Nonstop3h 41m
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Wed 4/23
11:44 pm-5:22 am
Nonstop3h 38m
Chicago O'Hare Intl
Tue 4/29
6:45 pm-8:58 pm
Nonstop4h 13m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Wed 4/23
11:45 pm-5:20 am
Nonstop3h 35m
Chicago Midway
Tue 4/29
8:35 pm-10:35 pm
Nonstop4h 00m
Best time to book a flight from Las Vegas to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Las Vegas with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Las Vegas to Illinois
What is the cheapest month to book a flight from Las Vegas to Illinois?
Currently, August is the cheapest month in which you can book a flight from Las Vegas to Illinois (average of $245). Flying from Las Vegas to Illinois in March is currently the most expensive (average of $323). 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 LAS to IL?
Find hourly flight availability from Las Vegas to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Las Vegas to Illinois as you normally would.
Weekly flight availability from Las Vegas to Illinois
Explore weekly flight availability from Las Vegas to Illinois. 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 March 25, 2025.
The most flights from LAS to USIL are scheduled on a Monday (40 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (29 on average).
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated March 25, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Las Vegas to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Boarding
Crew
Entertainment
Comfort
Reviews
Cheri,Jan 2025
FAT - SEA
Food
Overall
Boarding
Crew
Entertainment
Comfort
Reviews
Cheri,Jan 2025
FAT - SEA
Food
Overall
Boarding
Crew
Entertainment
Comfort
Reviews
Cheri,Jan 2025
FAT - SEA
Food
Overall
Boarding
Crew
Entertainment
Comfort
Reviews
Cheri,Jan 2025
FAT - SEA
Food
Overall
Boarding
Crew
Entertainment
Comfort
Reviews
Cheri,Jan 2025
FAT - SEA
Food
Overall
Boarding
Crew
Entertainment
Comfort
Reviews
Cheri,Jan 2025
FAT - SEA
Related info for your journey
Find useful and relevant information for your journey from Las Vegas to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Las Vegas to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Las Vegas to Illinois
Discover the top 7 airlines that operate flights from Las Vegas to Illinois. 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 March 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$151 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$70 | Average$180 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$118 | Average$473 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$128 | Average$210 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$144 | Average$359 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$155 | Average$409 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$188 | Average$330 | FlexibilityNo cancel fee | On-time63% |