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$42+ 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
JAC — ORD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$101
(Kiwi.com)

One-way from

$42
(Mytrip)

Popular in

November

Cheapest in

September

Average price

$425

Good round-trip deal

$413 or less

Good one-way deal

$275 or less
Provider with most accurate pricing for Jackson Hole-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Jackson Hole-Chicago (CHI) flights.
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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. 24% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Wed 11/126:00 amDEN - STL
Nonstop2h 07mFrontier
Sat 11/157:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 10/29$101
This Gotogate deal was found by Cheapflights users on 10/28. 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.
Sat 12/67:05 amDEN - STL
Nonstop2h 09mFrontier
Mon 12/83:30 pmSTL - DEN
1 stop29h 43mFrontier
Deal found 10/28$103
This CheapOair deal was found by Cheapflights users on 10/29. 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.
Sat 12/137:05 amDEN - STL
Nonstop2h 09mFrontier
Sat 1/37:43 pmSTL - DEN
Nonstop2h 32mFrontier
Deal found 10/29$107
This Priceline deal was found by Cheapflights users on 10/29. 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.
Thu 11/138:40 amDEN - STL
1 stop7h 47mFrontier
Mon 11/179:07 pmSTL - DEN
1 stop7h 52mFrontier
Deal found 10/29$110
This Frontier deal was found by Cheapflights users on 10/30. 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.
Mon 11/176:00 amDEN - STL
Nonstop2h 07mFrontier
Wed 11/197:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 10/30$111
This Frontier deal was found by Cheapflights users on 10/28. 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.
Tue 11/116:00 amDEN - STL
Nonstop2h 07mFrontier
Sun 11/167:45 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 10/28$112
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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.
Mon 11/1012:59 amDEN - ORD
1 stop9h 15mFrontier
Tue 11/186:05 pmORD - DEN
Nonstop2h 54mFrontier
Deal found 10/29$115
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Wed 12/107:05 amDEN - STL
Nonstop2h 09mFrontier
Sun 12/141:16 pmSTL - DEN
1 stop15h 42mFrontier
Deal found 10/28$115
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Wed 11/1212:05 pmDEN - ORD
Nonstop2h 34mFrontier
Wed 11/196:05 pmORD - DEN
Nonstop2h 54mFrontier
Deal found 10/30$116
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Fri 12/57:05 amDEN - STL
Nonstop2h 09mFrontier
Mon 12/812:07 pmSTL - DEN
1 stop7h 01mFrontier
Deal found 10/28$116
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Wed 12/312:59 amDEN - ORD
1 stop15h 28mFrontier
Sun 12/77:00 amORD - DEN
Nonstop2h 56mFrontier
Deal found 10/30$117
This Priceline deal was found by Cheapflights users on 10/29. 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.
Thu 12/41:42 pmDEN - MDW
1 stop7h 30mFrontier
Mon 12/812:18 pmMDW - DEN
Nonstop2h 44mFrontier
Deal found 10/29$117

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 October 30, 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

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 12/3

12:59 am-5:27 pm

1 stop15h 28m

Chicago O'Hare Intl

Mon 12/8

3:23 pm-10:59 pm

1 stop8h 36m

$129

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 11/14

9:28 am-8:12 pm

1 stop9h 44m

Lambert-St Louis

Mon 11/17

7:45 pm-12:06 am

1 stop5h 21m

$143

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 11/21

8:45 pm-12:10 am

Nonstop2h 25m

Chicago O'Hare Intl

Mon 11/24

7:00 am-9:00 am

Nonstop3h 00m

$145

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Mon 12/29

5:54 pm-8:51 pm

Nonstop1h 57m

Greater Peoria

Mon 1/5

3:38 pm-5:04 pm

Nonstop2h 26m

$155

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 12/3

12:59 am-3:47 pm

2 stops13h 48m

Chicago O'Hare Intl

Mon 12/8

3:23 pm-10:59 pm

1 stop8h 36m

$163

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Thu 12/11

12:59 am-9:47 am

1 stop7h 48m

Lambert-St Louis

Sun 12/14

1:16 pm-3:58 am

1 stop15h 42m

$176

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 12/12

9:16 pm-11:54 am

2 stops13h 38m

Chicago O'Hare Intl

Mon 12/15

3:23 pm-10:59 pm

1 stop8h 36m

$179

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Fri 12/5

10:22 am-10:12 pm

2 stops10h 50m

Chicago Midway

Sun 12/7

12:18 pm-9:27 am

1 stop22h 09m

$179

DenverChicago

DEN - MDW

DENMDW

Denver Intl

Mon 12/8

8:05 am-12:35 pm

1 stop3h 30m

Chicago Midway

Mon 12/22

10:30 pm-12:10 am

Nonstop2h 40m

$183

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Fri 12/5

10:22 am-10:24 pm

2 stops11h 02m

Chicago O'Hare Intl

Sun 12/7

9:52 pm-7:41 am

1 stop10h 49m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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, September is the cheapest month in which you can book a flight from Wyoming to Illinois (average of $197). Flying from Wyoming to Illinois in December is currently the most expensive (average of $486). 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 October 30, 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.

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 October 30, 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
8,998 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,035 reviews
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 1h 57m. Fly via Frontier, Allegiant Air, or Southwest to get the fastest option. Wyoming and Illinois are separated by a distance of 790 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 Frontier. According to our data, you can fly for as low as $62. Users have also found prices from $78 and $78 on United Airlines and Southwest, 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, September is the cheapest month in which you can book a flight from Wyoming to Illinois (average of $197). Flying from Wyoming to Illinois in December is currently the most expensive (average of $486). 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

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$191Average$385FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$297Average$434FlexibilityNo cancel feeOn-time69%

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