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Yellowstone National Park

$242+ Cheap flights from Illinois to Yellowstone National Park

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — WYS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Illinois to Yellowstone National Park

Cheapest flights from Illinois to Yellowstone National Park
Explore the most affordable flight options available from Illinois to Yellowstone National Park. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This Delta deal was found by Cheapflights users on 2/2. 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.
Sun 7/127:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Fri 7/171:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 2/2$242
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 7/137:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Fri 7/171:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 2/2$273
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 9/86:00 am
ORD
-
WYS
1 stop8h 20m
United Airlines
Sat 9/125:45 pm
WYS
-
ORD
1 stop5h 12m
United Airlines
Deal found 2/1$323
This Delta deal was found by Cheapflights users on 2/2. 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.
Sun 7/127:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Thu 7/231:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 2/2$373
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 7/137:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Thu 7/231:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 2/2$384
This Delta deal was found by Cheapflights users on 2/2. 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.
Sat 7/111:35 pm
ORD
-
WYS
2 stops23h 46m
Delta
Fri 7/171:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 2/2$400
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 7/76:00 am
ORD
-
WYS
1 stop8h 20m
United Airlines
Mon 7/132:02 pm
WYS
-
ORD
1 stop7h 42m
United Airlines
Deal found 2/2$403
This United Airlines deal was found by Cheapflights users on 2/3. 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 6/36:00 am
ORD
-
WYS
1 stop8h 20m
United Airlines
Wed 6/172:02 pm
WYS
-
ORD
1 stop7h 42m
United Airlines
Deal found 2/3$404
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Tue 7/77:00 am
ORD
-
WYS
1 stop7h 20m
United Airlines
Fri 7/102:02 pm
WYS
-
ORD
1 stop7h 42m
United Airlines
Deal found 1/31$413
This Delta deal was found by Cheapflights users on 2/2. 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.
Sun 7/127:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Mon 7/201:09 pm
WYS
-
ORD
2 stops22h 00m
Delta
Deal found 2/2$415
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 7/137:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Tue 7/211:09 pm
WYS
-
ORD
2 stops22h 00m
Delta
Deal found 2/2$426
This Delta deal was found by Cheapflights users on 2/4. 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 7/231:00 pm
MDW
-
WYS
2 stops24h 21m
Delta
Mon 7/271:09 pm
WYS
-
MDW
2 stops18h 29m
Delta
Deal found 2/4$557

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 February 5, 2026.

Round-trip from

$242
(Delta)
From Illinois to Yellowstone National Park
Search Deals

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 February 5, 2026.
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

Tue 7/14

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Fri 7/17

1:09 pm-9:58 pm

1 stop7h 49m

$242

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 7/14

7:00 am-1:20 pm

1 stop7h 20m

West Yellowstone

Wed 7/22

2:02 pm-11:19 pm

1 stop8h 17m

$403

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Mon 7/20

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Fri 7/31

5:45 pm-12:44 am

1 stop5h 59m

$403

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 6/3

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Wed 6/17

2:02 pm-10:44 pm

1 stop7h 42m

$404

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 7/5

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Mon 7/13

1:09 pm-12:09 pm

2 stops22h 00m

$426

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 5/22

10:55 pm-4:07 pm

1 stop18h 12m

West Yellowstone

Sun 5/31

5:45 pm-12:44 am

1 stop5h 59m

$434

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 7/19

5:00 am-4:07 pm

1 stop12h 07m

West Yellowstone

Fri 7/31

5:45 pm-12:44 am

1 stop5h 59m

$434

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 7/8

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Mon 7/13

1:09 pm-9:58 pm

1 stop7h 49m

$443

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 7/24

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Mon 7/27

1:09 pm-9:58 pm

1 stop7h 49m

$444

ChicagoWest Yellowstone

MDW - WYS

MDWWYS

Chicago Midway

Thu 7/23

1:00 pm-12:21 pm

2 stops24h 21m

West Yellowstone

Mon 7/27

1:09 pm-8:38 am

2 stops18h 29m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 23 results
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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?

    Delta and United Airlines can get you from Illinois to Yellowstone National Park in just under 6h 06m. Your travel time can differ by up to 1h 14m. The distance from Illinois to Yellowstone National Park is about 1177 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.
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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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$410Average$710FlexibilityNo cancel feeOn-time69%

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