Yellowstone National Park

$459+ Cheap flights from Illinois to Yellowstone National Park

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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — WYS
Jan 20 — Jan 271
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Cheap flight deals from Illinois to Yellowstone National Park

Best flights from Illinois to Yellowstone National Park
Discover carefully curated flight deals from Illinois to Yellowstone National Park that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2025.

This United Airlines deal was found by Cheapflights users on 12/19. 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.
Wed 6/179:45 pmORD - WYS
1 stop16h 35mUnited Airlines
Wed 6/242:02 pmWYS - ORD
1 stop18h 41mUnited Airlines
Deal found 12/19$547
This United Airlines deal was found by Cheapflights users on 12/20. 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 6/15:15 amORD - WYS
1 stop9h 05mUnited Airlines
Mon 6/82:02 pmWYS - ORD
1 stop7h 23mUnited Airlines
Deal found 12/20$565
This Delta deal was found by Cheapflights users on 12/19. 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.
Wed 6/176:00 amORD - WYS
2 stops7h 21mDelta
Wed 6/241:09 pmWYS - ORD
2 stops9h 46mDelta
Deal found 12/19$1,139
This United Airlines deal was found by Cheapflights users on 12/18. 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 5/188:24 pmORD - WYS
2 stops17h 56mUnited Airlines
Fri 5/225:45 pmWYS - ORD
2 stops13h 14mUnited Airlines
Deal found 12/18$694

Find flight deals from Illinois to Yellowstone National Park

Keep the following information in mind while searching for Illinois to Yellowstone National Park flight deals. Data was last updated December 21, 2025.

Round-trip from

$547
(United Airlines)

One-way from

$459
(United Airlines)
From Illinois to Yellowstone National Park
One-way flight from Illinois to Yellowstone National Park

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Yellowstone National Park 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 December 21, 2025.
Use the filters below to find and compare flights from Illinois to Yellowstone National Park that are best for you.

Fly from

Illinois

Fly to

Yellowstone National Park

Route

Depart

Return

Price

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 6/17

9:45 pm-1:20 pm

1 stop16h 35m

West Yellowstone

Wed 6/24

2:02 pm-9:43 am

1 stop18h 41m

$547

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Mon 6/1

5:15 am-1:20 pm

1 stop9h 05m

West Yellowstone

Mon 6/8

2:02 pm-10:25 pm

1 stop7h 23m

$565

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Mon 5/18

8:24 pm-1:20 pm

2 stops17h 56m

West Yellowstone

Fri 5/22

5:45 pm-7:59 am

2 stops13h 14m

$694

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 6/17

6:00 am-12:21 pm

2 stops7h 21m

West Yellowstone

Wed 6/24

1:09 pm-11:55 pm

2 stops9h 46m

$1,139

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 5/17

7:15 am-1:20 pm

1 stop7h 05m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Best time to book a flight from Illinois to Yellowstone National Park

Have a flexible travel schedule? Discover the best time to fly to Yellowstone National Park 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 Yellowstone National Park
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Yellowstone National Park. 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 Yellowstone National Park?

    United Airlines can get you from Illinois to Yellowstone National Park in just under 16h 35m. Your travel time can differ by up to . The distance from Illinois to Yellowstone National Park is about 1177 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Yellowstone National Park 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

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Alternative routes for Illinois to Yellowstone National Park

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Illinois to Yellowstone National Park

Discover the top airline that operate flights from Illinois to Yellowstone National Park. 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$410Average$710FlexibilityNo cancel feeOn-time69%

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