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$63+ Cheap flights from Wyoming 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
JAC — ORD
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap flight deals from Wyoming to Illinois

Keep the following information in mind while searching for Wyoming to Illinois flight deals. Data was last updated septiembre 15, 2025.

Round-trip from

$96
(Cheapflightsfares)

One-way from

$63
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$289

Good round-trip deal

$368 or less

Good one-way deal

$305 or less
From Wyoming to Illinois
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One-way flight from Wyoming to Illinois
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Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Wyoming to Illinois.
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Price to beat on a one-way flight from Wyoming to Illinois.
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Find flight deals from Wyoming to Illinois

Cheapest flights from Wyoming to Illinois
Explore the most affordable flight options available from Wyoming to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
vie. 12/56:50 amDEN - STL
Nonstop2h 12mFrontier
lun. 12/87:43 pmSTL - DEN
Nonstop2h 32mFrontier
Deal found 9/13$96
This Priceline deal was found by Cheapflights users on 9/14. 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.
mié. 11/126:00 amDEN - STL
Nonstop2h 07mFrontier
vie. 11/147:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 9/14$100
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
mié. 10/86:00 amDEN - STL
Nonstop2h 07mFrontier
dom. 10/127:52 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 9/14$101
This Frontier deal was found by Cheapflights users on 9/13. 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.
jue. 10/26:00 amDEN - STL
Nonstop2h 06mFrontier
dom. 10/57:55 pmSTL - DEN
Nonstop2h 25mFrontier
Deal found 9/13$105
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
vie. 10/246:41 pmDEN - PIA
Nonstop1h 51mAllegiant Air
lun. 10/279:59 amPIA - DEN
Nonstop2h 16mAllegiant Air
Deal found 9/13$108
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
mié. 10/2912:59 amDEN - STL
1 stop8h 13mFrontier
lun. 11/37:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 9/13$108
This Priceline deal was found by Cheapflights users on 9/14. 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.
mié. 11/1212:59 amDEN - STL
1 stop8h 13mFrontier
dom. 11/167:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 9/14$109
This Priceline deal was found by Cheapflights users on 9/14. 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.
sáb. 10/118:00 amDEN - STL
1 stop6h 56mFrontier
mar. 10/147:52 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 9/14$112
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/236:00 amDEN - STL
Nonstop2h 07mFrontier
lun. 10/279:59 pmSTL - DEN
1 stop23h 06mFrontier
Deal found 9/15$113
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
lun. 9/296:00 amDEN - STL
Nonstop2h 06mFrontier
lun. 10/62:38 pmSTL - DEN
1 stop22h 43mFrontier
Deal found 9/13$114
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
jue. 10/3012:16 amDEN - STL
1 stop12h 01mFrontier
dom. 11/27:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 9/14$115
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/109:19 pmDEN - ORD
Nonstop2h 40mFrontier
vie. 10/176:42 pmORD - DEN
1 stop6h 30mFrontier
Deal found 9/13$116

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wyoming 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 septiembre 15, 2025.
Use the filters below to find and compare flights from Wyoming to Illinois that are best for you.

Fly from

Wyoming

Fly to

Illinois

Route

Depart

Return

Price

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

jue. 10/16

6:00 am-9:07 am

Nonstop2h 07m

Lambert-St Louis

lun. 10/20

7:52 pm-9:20 pm

Nonstop2h 28m

$101

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

mié. 11/12

10:29 pm-1:57 pm

1 stop14h 28m

Lambert-St Louis

sáb. 11/15

7:45 pm-9:13 pm

Nonstop2h 28m

$113

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

lun. 10/13

6:00 am-9:07 am

Nonstop2h 07m

Lambert-St Louis

jue. 10/16

10:17 am-8:55 pm

1 stop11h 38m

$121

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

vie. 10/10

8:45 pm-11:58 pm

Nonstop2h 13m

Lambert-St Louis

dom. 10/12

5:15 am-6:53 am

Nonstop2h 38m

$131

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

vie. 12/26

7:13 pm-10:22 pm

Nonstop2h 09m

Lambert-St Louis

sáb. 1/3

2:45 pm-4:21 pm

Nonstop2h 36m

$131

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

vie. 10/24

2:23 pm-10:14 pm

1 stop6h 51m

Lambert-St Louis

lun. 10/27

10:18 am-8:04 pm

1 stop10h 46m

$144

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

jue. 10/16

10:05 pm-9:07 am

1 stop10h 02m

Lambert-St Louis

lun. 10/20

7:52 pm-10:19 pm

1 stop27h 27m

$145

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

mié. 11/12

10:15 am-1:20 pm

Nonstop2h 05m

Lambert-St Louis

sáb. 11/15

12:20 pm-5:50 pm

2 stops6h 30m

$146

DenverChicago

DEN - MDW

DENMDW

Denver Intl

mar. 11/4

10:15 am-5:15 pm

1 stop6h 00m

Chicago Midway

jue. 11/6

9:40 pm-11:15 pm

Nonstop2h 35m

$152

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

sáb. 10/25

12:10 pm-5:10 pm

1 stop4h 00m

Lambert-St Louis

dom. 10/26

5:35 am-7:00 am

Nonstop2h 25m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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Best time to book a flight from Wyoming to Illinois

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

Cheapflights Insights

Everything you need to know about your flight from Wyoming to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Wyoming to Illinois (average of $245). Flying from Wyoming to Illinois in March is currently the most expensive (average of $321). 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 WY to IL?

Find hourly flight availability from Wyoming 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 septiembre 15, 2025.

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

Weekly flight availability from Wyoming to Illinois

Explore weekly flight availability from Wyoming 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 septiembre 15, 2025.

The most flights from USWY to USIL are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from Wyoming to Illinois?

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 septiembre 15, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Wyoming to Illinois. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Wyoming to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Wyoming to Illinois?

    There are many flights that can get you from Wyoming to Illinois in 2h 07m. Fly via Frontier, United Airlines, or Southwest to get the fastest option. Wyoming and Illinois are separated by a distance of 767 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $66. Users have also found prices from $79 and $114 on Southwest and Frontier, respectively.

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

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

  • How can I find direct flights from Wyoming to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Wyoming to Illinois 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 Wyoming to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Wyoming to Illinois (average of $245). Flying from Wyoming to Illinois in March is currently the most expensive (average of $321). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Wyoming to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Wyoming to Illinois

Discover the top 2 airlines that operate flights from Wyoming 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$229Average$404FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$297Average$461FlexibilityNo cancel feeOn-time69%

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