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$54+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — JAC
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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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 October 13, 2025.

This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:45 pmSTL - DEN
Nonstop2h 28mFrontier
Fri 11/146:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/12$76
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:52 pmSTL - DEN
Nonstop2h 28mFrontier
Wed 10/296:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/13$77
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:45 pmSTL - DEN
Nonstop2h 28mFrontier
Tue 11/186:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/12$78
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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.
Sat 10/257:52 pmSTL - DEN
Nonstop2h 28mFrontier
Mon 10/276:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/13$80
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/279:59 pmSTL - DEN
1 stop7h 00mFrontier
Tue 10/286:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/12$83
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:57 pmSTL - DEN
Nonstop2h 34mFrontier
Mon 12/16:50 amDEN - STL
Nonstop2h 12mFrontier
Deal found 10/12$84
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:45 pmSTL - DEN
Nonstop2h 28mFrontier
Mon 11/176:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/11$85
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:45 pmSTL - DEN
Nonstop2h 28mFrontier
Fri 11/146:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/12$86
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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.
Mon 11/37:45 pmSTL - DEN
Nonstop2h 28mFrontier
Fri 11/76:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/12$87
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:07 pmSTL - DEN
1 stop7h 52mFrontier
Wed 11/126:00 amDEN - STL
Nonstop2h 07mFrontier
Deal found 10/12$88
This Frontier deal was found by Cheapflights users on 10/13. 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.
Tue 11/116:05 pmORD - DEN
Nonstop2h 54mFrontier
Mon 11/1712:59 amDEN - ORD
1 stop9h 15mFrontier
Deal found 10/13$91
This Frontier deal was found by Cheapflights users on 10/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:30 pmMDW - DEN
Nonstop2h 46mFrontier
Sun 11/98:05 amDEN - MDW
Nonstop2h 25mFrontier
Deal found 10/11$91

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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$76
(Frontier)

One-way from

$54
(Frontier)

Popular in

February

Cheapest in

April

Average price

$394

Good round-trip deal

$361 or less

Good one-way deal

$220 or less
Provider with most accurate pricing for Chicago (CHI)-Jackson Hole flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Jackson Hole flights.
Search Deals
From Illinois to Wyoming
Search Deals
One-way flight from Illinois to Wyoming
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Wyoming.
Search Deals
Price to beat on a one-way flight from Illinois to Wyoming.
Search Deals

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 October 13, 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

Fri 12/5

3:08 pm-4:34 pm

Nonstop2h 26m

Denver Intl

Fri 12/12

5:24 pm-8:21 pm

Nonstop1h 57m

$127

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 2/19

4:25 pm-10:00 pm

1 stop6h 35m

Denver Intl

Mon 2/23

5:30 am-12:15 pm

1 stop5h 45m

$183

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 11/10

12:09 pm-1:34 pm

Nonstop2h 25m

Denver Intl

Mon 11/17

2:24 pm-5:21 pm

Nonstop1h 57m

$189

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 11/11

1:55 pm-8:38 pm

1 stop7h 43m

Denver Intl

Sat 11/15

11:08 am-4:49 pm

1 stop4h 41m

$197

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Tue 11/11

9:40 am-11:20 am

Nonstop2h 40m

Denver Intl

Sat 11/15

5:10 pm-8:25 pm

Nonstop2h 15m

$197

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 11/12

9:33 am-3:13 pm

1 stop6h 40m

Denver Intl

Fri 11/14

12:50 am-10:23 am

1 stop8h 33m

$197

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 11/22

7:00 pm-8:40 pm

Nonstop2h 40m

Denver Intl

Mon 11/24

8:45 pm-12:05 am

Nonstop2h 20m

$199

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 2/3

11:20 am-5:57 pm

1 stop7h 37m

Denver Intl

Thu 2/5

1:41 pm-4:43 pm

Nonstop2h 02m

$207

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 11/4

5:24 pm-9:49 pm

1 stop5h 25m

Denver Intl

Sat 11/8

6:50 pm-9:54 pm

Nonstop2h 04m

$207

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Mon 3/2

10:00 am-3:07 pm

1 stop6h 07m

Denver Intl

Tue 3/3

12:59 am-9:04 am

1 stop7h 05m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 60 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, October is the cheapest month in which you can book a flight from Illinois to Wyoming (average of $229). Flying from Illinois to Wyoming in February is currently the most expensive (average of $383). 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 October 13, 2025.

When flying from Illinois to Wyoming, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 26% versus a flight in the morning.

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 October 13, 2025.

The most flights from USIL to USWY are scheduled on a Monday (2 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

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 October 13, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Illinois to Wyoming. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,974 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,045 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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.

  • How long is the flight from Illinois to Wyoming?

    There are many flights that can get you from Illinois to Wyoming in 2h 26m. Fly via Allegiant Air, Southwest, or Delta to get the fastest option. The distance from Illinois to Wyoming is about 790 mi. This flight may include one or multiple stops.

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

    $73 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $77 and $83, 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, October is the cheapest month in which you can book a flight from Illinois to Wyoming (average of $229). Flying from Illinois to Wyoming in February is currently the most expensive (average of $383). 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 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$211Average$446FlexibilityNo cancel feeOn-time69%
DeltaCheapest$265Average$398FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$523FlexibilityNo cancel feeOn-time71%

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