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Wyoming

$78+ Cheap flights from Illinois to Wyoming

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — JAC
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Wyoming

Keep the following information in mind while searching for Illinois to Wyoming flight deals. Data was last updated July 31, 2025.

Round-trip from

$92
(Mytrip)

One-way from

$78
(FlightHub)

Popular in

February

Cheapest in

April

Average price

$505

Good round-trip deal

$349 or less

Good one-way deal

$273 or less
From Illinois to Wyoming
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One-way flight from Illinois to Wyoming
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Highest demand for flights based on searches. 5% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Wyoming.
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Price to beat on a one-way flight from Illinois to Wyoming.
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Find flight deals from Illinois to Wyoming

Cheapest flights from Illinois to Wyoming
Explore the most affordable flight options available from Illinois to Wyoming. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/83:18 pmPIA - DEN
Nonstop2h 16mAllegiant Air
Fri 9/195:24 pmDEN - PIA
Nonstop2h 00mAllegiant Air
Deal found 7/30$92
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/167:29 pmSTL - DEN
Nonstop2h 29mFrontier
Wed 8/206:00 amDEN - STL
Nonstop2h 11mFrontier
Deal found 7/30$100
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Sat 9/138:25 amORD - DEN
Nonstop2h 51mFrontier
Sat 9/135:50 pmDEN - ORD
Nonstop2h 38mFrontier
Deal found 7/29$118
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 8/1812:35 pmMDW - DEN
Nonstop2h 44mFrontier
Fri 8/229:00 pmDEN - MDW
Nonstop2h 24mFrontier
Deal found 7/29$122
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 amMDW - DEN
Nonstop2h 45mSouthwest
Tue 10/147:20 pmDEN - MDW
Nonstop2h 20mSouthwest
Deal found 7/29$157
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 10/49:00 amSTL - DEN
Nonstop2h 20mUnited Airlines
Sat 10/48:45 pmDEN - STL
Nonstop2h 13mUnited Airlines
Deal found 7/31$157
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:00 amORD - SLC
1 stop8h 57mSpirit Airlines
Mon 8/253:02 pmSLC - ORD
1 stop12h 48mSpirit Airlines
Deal found 7/30$193
This CheapOair deal was found by Cheapflights users on 7/29. 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 9/66:00 amORD - SLC
1 stop9h 29mMultiple Airlines
Sun 9/74:30 pmSLC - ORD
1 stop6h 28mMultiple Airlines
Deal found 7/29$195
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:55 pmSTL - SLC
1 stop27h 31mFrontier
Tue 9/168:45 amSLC - STL
1 stop23h 21mFrontier
Deal found 7/30$205
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/97:00 amORD - SLC
1 stop5h 23mFrontier
Tue 8/1912:52 pmSLC - ORD
1 stop7h 50mFrontier
Deal found 7/29$218
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/92:44 pmMDW - SLC
1 stop9h 26mFrontier
Sat 8/168:05 amSLC - MDW
1 stop11h 49mFrontier
Deal found 7/29$218
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/253:40 pmMLI - DEN
1 stop7h 19mUnited Airlines
Sat 8/305:39 pmDEN - MLI
Nonstop2h 14mUnited Airlines
Deal found 7/31$219

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Wyoming 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 July 31, 2025.
Use the filters below to find and compare flights from Illinois to Wyoming that are best for you.

Fly from

Illinois

Fly to

Wyoming

Route

Depart

Return

Price

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 9/8

3:18 pm-4:34 pm

Nonstop2h 16m

Denver Intl

Fri 9/19

5:24 pm-8:24 pm

Nonstop2h 00m

$92

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 8/16

7:29 pm-8:58 pm

Nonstop2h 29m

Denver Intl

Wed 8/20

6:00 am-9:11 am

Nonstop2h 11m

$100

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 9/13

8:25 am-10:16 am

Nonstop2h 51m

Denver Intl

Sat 9/13

5:50 pm-9:28 pm

Nonstop2h 38m

$118

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Mon 8/18

12:35 pm-2:19 pm

Nonstop2h 44m

Denver Intl

Fri 8/22

9:00 pm-12:24 am

Nonstop2h 24m

$122

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Tue 10/7

8:00 am-9:45 am

Nonstop2h 45m

Denver Intl

Tue 10/14

7:20 pm-10:40 pm

Nonstop2h 20m

$157

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 10/4

9:00 am-10:20 am

Nonstop2h 20m

Denver Intl

Sat 10/4

8:45 pm-11:58 pm

Nonstop2h 13m

$157

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 8/23

6:35 pm-8:22 pm

Nonstop2h 47m

Denver Intl

Tue 8/26

7:22 am-10:53 am

Nonstop2h 31m

$161

ChicagoSalt Lake City

ORD - SLC

ORDSLC

Chicago O'Hare Intl

Fri 8/22

6:00 am-1:57 pm

1 stop8h 57m

Salt Lake City

Mon 8/25

3:02 pm-4:50 am

1 stop12h 48m

$193

ChicagoSalt Lake City

ORD - SLC

ORDSLC

Chicago O'Hare Intl

Sat 9/6

6:00 am-2:29 pm

1 stop9h 29m

Salt Lake City

Sun 9/7

4:30 pm-11:58 pm

1 stop6h 28m

$195

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Tue 9/9

7:55 pm-10:26 pm

1 stop27h 31m

Salt Lake City

Tue 9/16

8:45 am-9:06 am

1 stop23h 21m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 57 results
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Best time to book a flight from Illinois to Wyoming

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

Cheapflights Insights

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Wyoming (average of $467). Flying from Illinois to Wyoming in June is currently the most expensive (average of $616). 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 WY?

Find hourly flight availability from Illinois to Wyoming. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

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

Weekly flight availability from Illinois to Wyoming

Explore weekly flight availability from Illinois to Wyoming. 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 July 31, 2025.

The most flights from USIL to USWY are scheduled on a Thursday (6 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

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

Reviews of airlines servicing Wyoming

Get insights into the airlines that provide service to Wyoming. 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 Wyoming. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Illinois to Wyoming. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

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

    $78 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Southwest, with prices starting from $79 and $79, respectively.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Wyoming (average of $467). Flying from Illinois to Wyoming in June is currently the most expensive (average of $616). 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 Illinois to Wyoming

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Wyoming

Discover the top 3 airlines that operate flights from Illinois to Wyoming. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$243Average$447FlexibilityNo cancel feeOn-time69%
DeltaCheapest$293Average$403FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$600FlexibilityNo cancel feeOn-time71%

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