What is the cheapest airline that flies from Illinois to Yellowstone National Park?

United Airlines is the most popular carrier operating from Illinois to Yellowstone National Park

When did momondo last update prices for flights from Illinois to Yellowstone National Park?

Prices for flights from Illinois to Yellowstone National Park are updated daily.

How many operators does momondo search for flights from Illinois to Yellowstone National Park?

The number of operators available for flights from Illinois to Yellowstone National Park is 1 as of March 2026.

How old do you have to be to fly from Illinois to Yellowstone National Park?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Yellowstone National Park.

What documentation or ID do you need to fly to Yellowstone National Park?

The necessary travel and health documents for your Yellowstone National Park trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$332 Cheap Flights from Illinois to Yellowstone National Park in 2026

1 adult

0 bags

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Find the cheapest flights from Illinois to Yellowstone National Park

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$332United Airlines

Sat, Jun 13 - Fri, Jun 19

7:00 am - 1:20 pm

ORD

WYS

7h 20m

1 stop

2:02 pm - 9:12 pm

WYS

ORD

6h 10m

1 stop

$334United Airlines

Wed, Aug 12 - Wed, Aug 19

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

2:19 pm - 11:19 pm

WYS

ORD

8h 00m

1 stop

$383United Airlines

Sat, Jun 13 - Mon, Jun 15

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$389United Airlines

Tue, Jun 16 - Fri, Jun 19

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

2:02 pm - 10:41 pm

WYS

ORD

7h 39m

1 stop

$404United Airlines

Sat, Aug 15 - Sat, Aug 22

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

2:19 pm - 10:49 pm

WYS

ORD

7h 30m

1 stop

$408United Airlines

Sat, Jun 13 - Tue, Jun 16

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

2:19 pm - 11:19 pm

WYS

ORD

8h 00m

1 stop

$428United Airlines

Sun, May 24 - Thu, May 28

10:55 pm - 4:37 pm

ORD

WYS

18h 42m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$439United Airlines

Fri, May 22 - Sun, May 31

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 9:42 am

WYS

ORD

14h 57m

1 stop

$479United Airlines

Sat, Jun 13 - Sat, Jun 20

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

2:19 pm - 10:49 pm

WYS

ORD

7h 30m

1 stop

$484United Airlines

Mon, Jun 1 - Mon, Jun 8

United Airlines flights from Illinois to Yellowstone National Park

Our best United Airlines deals on Illinois to Yellowstone National Park flight tickets

United Airlines

Jun 13

ORD6:00 amChicago O'Hare Intl

8h 32m

1 stop

WYS1:32 pmWest Yellowstone

Jun 19

WYS5:45 pmWest Yellowstone

5h 59m

1 stop

ORD12:44 amChicago O'Hare Intl

$332

United Airlines

Aug 12

ORD7:00 amChicago O'Hare Intl

7h 20m

1 stop

WYS1:20 pmWest Yellowstone

Aug 19

WYS2:02 pmWest Yellowstone

6h 10m

1 stop

ORD9:12 pmChicago O'Hare Intl

$334

United Airlines

Jun 13

ORD6:00 amChicago O'Hare Intl

8h 32m

1 stop

WYS1:32 pmWest Yellowstone

Jun 15

WYS2:19 pmWest Yellowstone

8h 00m

1 stop

ORD11:19 pmChicago O'Hare Intl

$383

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Yellowstone National Park that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/13

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Fri 6/19

5:45 pm-12:44 am

1 stop5h 59m

$332

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 8/12

7:00 am-1:20 pm

1 stop7h 20m

West Yellowstone

Wed 8/19

2:02 pm-9:12 pm

1 stop6h 10m

$334

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/13

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Mon 6/15

2:19 pm-11:19 pm

1 stop8h 00m

$383

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 6/16

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Fri 6/19

5:45 pm-12:44 am

1 stop5h 59m

$389

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 8/15

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Sat 8/22

2:02 pm-10:41 pm

1 stop7h 39m

$404

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/13

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Tue 6/16

2:19 pm-10:49 pm

1 stop7h 30m

$408

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 5/24

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Thu 5/28

2:19 pm-11:19 pm

1 stop8h 00m

$428

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 5/22

10:55 pm-4:37 pm

1 stop18h 42m

West Yellowstone

Sun 5/31

5:45 pm-12:44 am

1 stop5h 59m

$439

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/13

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Sat 6/20

5:45 pm-9:42 am

1 stop14h 57m

$479

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Mon 6/1

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Mon 6/8

2:19 pm-10:49 pm

1 stop7h 30m

$484

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Yellowstone National Park

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Illinois to Yellowstone National Park flights?

No. A direct flight is the cheapest option for a flight between Illinois to Yellowstone National Park.

Cheap Illinois to Yellowstone National Park flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Yellowstone National Park

Fastest flight time	5h 20m
Direct flights	None

The fastest flight from Illinois to Yellowstone National Park takes 5h 20m

There are no direct flights from Illinois to Yellowstone National Park. There are no popular flight routes from Illinois to Yellowstone National Park.

Search flight deals

When did momondo last update prices for flights from Illinois to Yellowstone National Park?
Prices for flights from Illinois to Yellowstone National Park are updated daily.
How many operators does momondo search for flights from Illinois to Yellowstone National Park?
The number of operators available for flights from Illinois to Yellowstone National Park is 1 as of March 2026.
How old do you have to be to fly from Illinois to Yellowstone National Park?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Yellowstone National Park.
What documentation or ID do you need to fly to Yellowstone National Park?
The necessary travel and health documents for your Yellowstone National Park trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Yellowstone National Park?
Based on momondo bookings for flights between Illinois and Yellowstone National Park, the leading plane model is Airbus A321neo, making up 16.96% of the total bookings. Other popular models include Boeing 737-800 with 15.95%, Boeing 737-900 with 7.58%, and Airbus A321-100/200 with 7.52%.

Best airlines flying from Illinois to Yellowstone National Park

Compare and see reviews for airlines that fly from Illinois to Yellowstone National Park with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $410	Free Cancellation	Rating 7.4 9,370 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Yellowstone National Park?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Yellowstone National Park for you.

Can I find flights from Illinois to Yellowstone National Park with flexible booking policies on momondo?

All flight searches from Illinois to Yellowstone National Park on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Yellowstone National Park?

momondo provides multiple filters to help you find the best flight to Yellowstone National Park from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to Yellowstone National Park right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Illinois to Yellowstone National Park flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.