How long does it take to fly to West Yellowstone?

Flight times vary depending on what airport in Illinois you fly out of and what airport in West Yellowstone you fly into. For example, flying from Chicago to Bozeman takes 3h 16m on average. On the other hand, flying from Moline to Bozeman takes 5h 36m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

Prices for flights from Illinois to West Yellowstone Airport are refreshed on a daily basis.

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

There is 1 operator available for flights from Illinois to West Yellowstone Airport as of February 2026.

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

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 West Yellowstone Airport.

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

The travel and health documents required for your trip to West Yellowstone Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at West Yellowstone Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$252 Cheap Flights from Illinois to West Yellowstone in 2026

1 adult

0 bags

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Find the cheapest flights from Illinois to West Yellowstone

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 am - 12:21 pm

ORD

WYS

6h 06m

1 stop

1:09 pm - 9:58 pm

WYS

ORD

7h 49m

1 stop

$252Delta

Sun, Jul 5 - Fri, Jul 17

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$322United Airlines

Tue, Jul 14 - Fri, Jul 24

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$323United Airlines

Mon, Jun 15 - Fri, Jun 19

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

2:02 pm - 11:19 pm

WYS

ORD

8h 17m

1 stop

$332United Airlines

Wed, Jun 24 - Thu, Jul 2

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$379United Airlines

Thu, Jul 16 - Fri, Jul 24

7:15 am - 12:21 pm

ORD

WYS

6h 06m

1 stop

1:09 pm - 9:58 pm

WYS

ORD

7h 49m

1 stop

$394Delta

Sun, Jul 19 - Mon, Jul 27

5:45 pm - 12:21 pm

ORD

WYS

19h 36m

2 stops

1:09 pm - 9:58 pm

WYS

ORD

7h 49m

1 stop

$395Delta

Tue, Jul 7 - Fri, Jul 17

6:00 am - 1:20 pm

ORD

WYS

8h 20m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$403United Airlines

Wed, Jun 24 - Fri, Jul 3

10:35 am - 12:21 pm

ORD

WYS

26h 46m

2 stops

1:09 pm - 9:58 pm

WYS

ORD

7h 49m

1 stop

$414Delta

Sat, Jul 11 - Fri, Jul 17

7:15 am - 12:21 pm

ORD

WYS

6h 06m

1 stop

1:09 pm - 10:04 am

WYS

ORD

19h 55m

2 stops

$429Delta

Sun, Jul 5 - Fri, Jul 17

United Airlines flights from Illinois to West Yellowstone

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

United Airlines

Jun 23

STL9:06 amLambert-St Louis

5h 14m

1 stop

WYS1:20 pmWest Yellowstone

Jun 30

WYS2:02 pmWest Yellowstone

5h 40m

1 stop

STL8:42 pmLambert-St Louis

$670

United Airlines

May 29

STL6:00 amLambert-St Louis

11h 07m

2 stops

WYS4:07 pmWest Yellowstone

Jun 6

WYS5:45 pmWest Yellowstone

5h 13m

1 stop

STL11:58 pmLambert-St Louis

$680

United Airlines

May 29

STL4:50 pmLambert-St Louis

24h 17m

1 stop

WYS4:07 pmWest Yellowstone

Jun 6

WYS5:45 pmWest Yellowstone

5h 13m

1 stop

STL11:58 pmLambert-St Louis

$682

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 7/5

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Fri 7/17

1:09 pm-9:58 pm

1 stop7h 49m

$252

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 7/14

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Fri 7/24

5:45 pm-12:44 am

1 stop5h 59m

$322

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Mon 6/15

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Fri 6/19

5:45 pm-12:44 am

1 stop5h 59m

$323

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 6/24

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Thu 7/2

2:02 pm-11:19 pm

1 stop8h 17m

$332

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Thu 7/16

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Fri 7/24

5:45 pm-12:44 am

1 stop5h 59m

$379

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 7/19

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Mon 7/27

1:09 pm-9:58 pm

1 stop7h 49m

$394

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 7/7

5:45 pm-12:21 pm

2 stops19h 36m

West Yellowstone

Fri 7/17

1:09 pm-9:58 pm

1 stop7h 49m

$395

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Wed 6/24

6:00 am-1:20 pm

1 stop8h 20m

West Yellowstone

Fri 7/3

5:45 pm-12:44 am

1 stop5h 59m

$403

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 7/11

10:35 am-12:21 pm

2 stops26h 46m

West Yellowstone

Fri 7/17

1:09 pm-9:58 pm

1 stop7h 49m

$414

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 7/5

7:15 am-12:21 pm

1 stop6h 06m

West Yellowstone

Fri 7/17

1:09 pm-10:04 am

2 stops19h 55m

$429

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois 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

Airlines

Other information

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

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

What airlines fly to West Yellowstone?

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to West Yellowstone from Illinois according to our data. American Airlines is the first choice among our users, with 53% 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.

Cheap Illinois to West Yellowstone flight deals and tips

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

Fastest flight time	5h 14m
Direct flights	None

The fastest flight from Illinois to West Yellowstone takes 5h 14m

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

Search flight deals

When did momondo last update prices for flights from Illinois to West Yellowstone Airport?
Prices for flights from Illinois to West Yellowstone Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to West Yellowstone Airport?
There is 1 operator available for flights from Illinois to West Yellowstone Airport as of February 2026.
How old do you have to be to fly from Illinois to West Yellowstone Airport?
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 West Yellowstone Airport.
What documentation or ID do you need to fly to West Yellowstone Airport?
The travel and health documents required for your trip to West Yellowstone Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at West Yellowstone Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to West Yellowstone

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $410	Free Cancellation	Rating 7.4 9,283 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 Illinois to West Yellowstone?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to West Yellowstone from Illinois.

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

Flights from Illinois to West Yellowstone with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Illinois to West Yellowstone flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Illinois to West Yellowstone flights. All you need is a valid email address and we will do the rest; it is that quick and easy.