When did momondo last update prices for flights from Chicago to West Yellowstone Airport?

Prices for flights from Chicago to West Yellowstone Airport refresh daily.

How many operators does momondo search for flights from Chicago to West Yellowstone Airport?

As of March 2026, there is 1 operator available to choose from for flights from Chicago to West Yellowstone Airport.

How old do you have to be to fly from Chicago to West Yellowstone Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to West Yellowstone Airport.

What documentation or ID do you need to fly to West Yellowstone Airport?

The necessary travel and health documents for your West Yellowstone Airport 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.

$298 Cheap Flights from Chicago to West Yellowstone in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chicago to West Yellowstone

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

5:45 pm - 11:59 pm

WYS

ORD

5h 14m

1 stop

$298United Airlines

Sun, Aug 23 - Sat, Aug 29

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$369United Airlines

Tue, Jul 7 - Sat, Jul 11

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

2:19 pm - 10:49 pm

WYS

ORD

7h 30m

1 stop

$401United Airlines

Fri, Jun 5 - Tue, Jun 9

7:00 am - 1:20 pm

ORD

WYS

7h 20m

1 stop

2:02 pm - 9:42 pm

WYS

ORD

6h 40m

1 stop

$423United Airlines

Wed, Aug 12 - Wed, Aug 19

7:15 am - 12:21 pm

ORD

WYS

6h 06m

1 stop

11:29 am - 11:57 pm

WYS

ORD

11h 28m

2 stops

$428Delta

Sun, Aug 23 - Sat, Aug 29

10:55 pm - 4:37 pm

ORD

WYS

18h 42m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$469United Airlines

Fri, May 22 - Sun, May 31

7:00 am - 1:20 pm

ORD

WYS

7h 20m

1 stop

2:02 pm - 9:12 pm

WYS

ORD

6h 10m

1 stop

$486United Airlines

Sat, Aug 22 - Wed, Aug 26

7:00 am - 1:20 pm

ORD

WYS

7h 20m

1 stop

2:02 pm - 9:42 pm

WYS

ORD

6h 40m

1 stop

$495United Airlines

Sat, Aug 22 - Wed, Aug 26

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

2:02 pm - 9:12 pm

WYS

ORD

6h 10m

1 stop

$504United Airlines

Sat, Aug 22 - Wed, Aug 26

10:55 pm - 4:37 pm

ORD

WYS

18h 42m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$521United Airlines

Fri, May 22 - Sun, May 31

United Airlines flights from Chicago to West Yellowstone

Our best United Airlines deals on Chicago to West Yellowstone flight tickets

United Airlines

Aug 23

ORD6:00 amChicago O'Hare Intl

8h 20m

1 stop

WYS1:20 pmWest Yellowstone

Aug 29

WYS5:45 pmWest Yellowstone

5h 14m

1 stop

ORD11:59 pmChicago O'Hare Intl

$298

United Airlines

Jul 7

ORD6:00 amChicago O'Hare Intl

8h 32m

1 stop

WYS1:32 pmWest Yellowstone

Jul 11

WYS5:45 pmWest Yellowstone

5h 59m

1 stop

ORD12:44 amChicago O'Hare Intl

$369

United Airlines

Jun 5

ORD6:00 amChicago O'Hare Intl

8h 32m

1 stop

WYS1:32 pmWest Yellowstone

Jun 9

WYS2:19 pmWest Yellowstone

7h 30m

1 stop

ORD10:49 pmChicago O'Hare Intl

$401

Delta flights from Chicago to West Yellowstone

Our best Delta deals on Chicago to West Yellowstone flight tickets

Delta

Aug 23

ORD7:15 amChicago O'Hare Intl

6h 06m

1 stop

WYS12:21 pmWest Yellowstone

Aug 29

WYS11:29 amWest Yellowstone

11h 28m

2 stops

ORD11:57 pmChicago O'Hare Intl

$428

Delta

Aug 23

ORD6:00 amChicago O'Hare Intl

7h 21m

2 stops

WYS12:21 pmWest Yellowstone

Aug 29

WYS11:29 amWest Yellowstone

11h 28m

2 stops

ORD11:57 pmChicago O'Hare Intl

$559

Delta

Jul 7

ORD6:00 amChicago O'Hare Intl

7h 21m

2 stops

WYS12:21 pmWest Yellowstone

Jul 11

WYS11:29 amWest Yellowstone

7h 55m

2 stops

ORD8:24 pmChicago O'Hare Intl

$1,189

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 8/23

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Sat 8/29

5:45 pm-11:59 pm

1 stop5h 14m

$298

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 7/7

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Sat 7/11

5:45 pm-12:44 am

1 stop5h 59m

$369

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 6/5

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Tue 6/9

2:19 pm-10:49 pm

1 stop7h 30m

$401

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-9:42 pm

1 stop6h 40m

$423

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 8/23

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Sat 8/29

11:29 am-11:57 pm

2 stops11h 28m

$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

$469

Quickest round-trip

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 8/22

7:00 am-1:20 pm

1 stop7h 20m

West Yellowstone

Wed 8/26

2:02 pm-9:12 pm

1 stop6h 10m

$486

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 8/22

7:00 am-1:20 pm

1 stop7h 20m

West Yellowstone

Wed 8/26

2:02 pm-9:42 pm

1 stop6h 40m

$495

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 8/22

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Wed 8/26

2:02 pm-9:12 pm

1 stop6h 10m

$504

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

$521

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago to West Yellowstone

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

What is the cheapest airline that flies from Chicago to West Yellowstone?

United Airlines is the most popular carrier operating from Chicago to West Yellowstone

What airlines fly to West Yellowstone?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to West Yellowstone from Chicago according to our data. American Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to West Yellowstone. Keep in mind that there are 5 different airlines that fly to West Yellowstone on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago to West Yellowstone

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to West Yellowstone according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to West Yellowstone (CHI to WYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to West Yellowstone

Fastest flight time	7h 20m
Direct flights	None

The fastest flight from Chicago to West Yellowstone takes 7h 20m

There are no direct flights from Chicago to West Yellowstone. There are no popular flight routes from Chicago to West Yellowstone.

Search flight deals

How far is Chicago to West Yellowstone by plane?
A flight from Chicago to West Yellowstone will travel around 1191.6 mi. A reasonable flight in good conditions will take 7h 20m.
When did momondo last update prices for flights from Chicago to West Yellowstone Airport?
Prices for flights from Chicago to West Yellowstone Airport refresh daily.
How many operators does momondo search for flights from Chicago to West Yellowstone Airport?
As of March 2026, there is 1 operator available to choose from for flights from Chicago to West Yellowstone Airport.
How old do you have to be to fly from Chicago to West Yellowstone Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to West Yellowstone Airport.
What documentation or ID do you need to fly to West Yellowstone Airport?
The necessary travel and health documents for your West Yellowstone Airport 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 airline from Chicago to West Yellowstone?
momondo data reveals that the most frequently booked airline on the route from Chicago to West Yellowstone is United Airlines, representing 100% of all bookings.

Best airlines flying from Chicago to West Yellowstone

Compare and see reviews for airlines that fly from Chicago to West Yellowstone with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $410	Free Cancellation	Rating 7.4 9,423 reviews		Search United Airlines flights

Yellowstone National Park

Island Park

Gardiner

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to West Yellowstone?

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 Chicago to West Yellowstone for you.

Can I find flights from Chicago to West Yellowstone with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to West Yellowstone from Chicago with this policy.

How can momondo help me find flights from Chicago to West Yellowstone?

Once you have performed a search for Chicago to West Yellowstone flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to West Yellowstone from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.