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West Yellowstone

$209+ Cheap flights from Illinois to West Yellowstone (WYS)

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — WYS
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
1 adult, Economy
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Cheap flight deals from Illinois to West Yellowstone

Keep the following information in mind while searching for Illinois to West Yellowstone flight deals. Data was last updated April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$324
(United Airlines)

One-way from

$209
(United Airlines)
Provider with most accurate pricing for Chicago (CHI)-West Yellowstone flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-West Yellowstone flights.
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From Illinois to West Yellowstone
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One-way flight from Illinois to West Yellowstone
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Find flight deals from Illinois to West Yellowstone

Cheapest flights from Illinois to West Yellowstone
Explore the most affordable flight options available from Illinois to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2025.

This United Airlines deal was found by Cheapflights users on 4/2. 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 5/107:10 amORD - WYS
1 stop7h 02mUnited Airlines
Sat 5/171:51 pmWYS - ORD
1 stop8h 16mUnited Airlines
Deal found 4/2$324
This United Airlines deal was found by Cheapflights users on 3/31. 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 7/265:15 amSTL - WYS
1 stop5h 22mUnited Airlines
Wed 7/302:02 pmWYS - STL
1 stop25h 29mUnited Airlines
Deal found 3/31$811
This Delta deal was found by Cheapflights users on 4/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:00 amMDW - WYS
2 stops9h 37mDelta
Tue 5/2711:30 amWYS - MDW
2 stops8h 57mDelta
Deal found 4/2$1,259
This Delta deal was found by Cheapflights users on 4/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/307:30 amORD - WYS
1 stop8h 07mDelta
Sat 6/712:53 pmWYS - ORD
1 stop7h 47mDelta
Deal found 4/2$1,390

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to West Yellowstone 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 April 3, 2025.
Use the filters below to find and compare flights from Illinois to West Yellowstone that are best for you.

Fly from

Illinois

Fly to

West Yellowstone

Route

Depart

Return

Price

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 5/10

7:10 am-1:12 pm

1 stop7h 02m

West Yellowstone

Sat 5/17

1:51 pm-11:07 pm

1 stop8h 16m

$324

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 7/26

5:15 am-9:37 am

1 stop5h 22m

West Yellowstone

Wed 7/30

2:02 pm-4:31 pm

1 stop25h 29m

$811

ChicagoWest Yellowstone

MDW - WYS

MDWWYS

Chicago Midway

Thu 5/22

6:00 am-2:37 pm

2 stops9h 37m

West Yellowstone

Tue 5/27

11:30 am-9:27 pm

2 stops8h 57m

$1,259

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 5/30

7:30 am-2:37 pm

1 stop8h 07m

West Yellowstone

Sat 6/7

12:53 pm-9:40 pm

1 stop7h 47m

$1,390

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 5/13

5:05 am-1:12 pm

1 stop9h 07m

$209

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Mon 6/9

5:20 am-1:18 pm

1 stop8h 58m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Best time to book a flight from Illinois to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone 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 West Yellowstone

Rainfall in West Yellowstone by month

Plan your trip to West Yellowstone by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in West Yellowstone ranges from 1.2 - 2.0 inches per month. January is typically the wettest month, when rainfall can reach 2.0 in. April is typically the driest time to visit West Yellowstone when rainfall is around 1.2 in.

Temperature in West Yellowstone by month

Plan your trip to West Yellowstone by taking into account the average temperature totals by month.

If weather is an important factor for your trip to West Yellowstone, 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 60.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing West Yellowstone

Get insights into the airlines that provide service to West Yellowstone. 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 West Yellowstone. Reviews last updated April 3, 2025.
Delta
8.0
Very good
7,897 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,619 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What airport do you fly into for flights to West Yellowstone from Illinois?

    Most people fly into West Yellowstone (WYS) if they book a flight to West Yellowstone from Illinois. Yellowstone is conveniently located just 1.9 mi from West Yellowstone’s city center.

  • What are the most popular routes from Illinois to West Yellowstone?

    When deciding which route to take from Illinois to West Yellowstone consider Chicago O'Hare Intl - West Yellowstone, Lambert-St Louis - West Yellowstone or Chicago Midway - West Yellowstone as they are the most popular.

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

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

  • How can I find direct flights from Illinois to West Yellowstone?

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

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

    Yes. Cheapflights offers flight deals from Illinois to West Yellowstone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Illinois?

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Top airline flying from Illinois to West Yellowstone

Discover the top airline that operate flights from Illinois to West Yellowstone. 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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$290Average$603FlexibilityNo cancel feeOn-timeN/A

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