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 12m on average. On the other hand, flying from Moline to Bozeman takes 5h 44m 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 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.

$256 Cheap Flights from Illinois to West Yellowstone in 2026

Find the cheapest flights from Illinois to West Yellowstone

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 12:28 pm

ORD

WYS

5h 43m

1 stop

1:09 pm - 9:52 pm

WYS

ORD

7h 43m

1 stop

$304Delta

Sat, Sep 12 - Sat, Sep 19

8:00 am - 12:27 pm

STL

WYS

5h 27m

1 stop

1:09 pm - 6:55 pm

WYS

STL

4h 46m

1 stop

$304Delta

Thu, Aug 20 - Fri, Aug 28

5:55 am - 1:20 pm

ORD

WYS

8h 25m

1 stop

4:44 pm - 10:46 pm

WYS

ORD

5h 02m

1 stop

$313United Airlines

Fri, Aug 14 - Fri, Aug 21

7:45 am - 12:26 pm

ORD

WYS

5h 41m

1 stop

1:10 pm - 9:29 pm

WYS

ORD

7h 19m

1 stop

$329Delta

Tue, Jul 14 - Tue, Jul 21

8:00 am - 12:27 pm

STL

WYS

5h 27m

1 stop

1:09 pm - 6:55 pm

WYS

STL

4h 46m

1 stop

$329Delta

Thu, Aug 20 - Fri, Aug 28

8:00 am - 12:27 pm

STL

WYS

5h 27m

1 stop

1:09 pm - 11:58 pm

WYS

STL

9h 49m

2 stops

$413Delta

Thu, Aug 20 - Fri, Aug 28

5:55 am - 1:20 pm

ORD

WYS

8h 25m

1 stop

5:45 pm - 11:59 pm

WYS

ORD

5h 14m

1 stop

$419United Airlines

Sun, Sep 6 - Sat, Sep 12

7:48 am - 12:27 pm

ORD

WYS

5h 39m

1 stop

1:09 pm - 11:57 pm

WYS

ORD

9h 48m

2 stops

$424Delta

Thu, Aug 20 - Fri, Aug 28

7:45 am - 12:28 pm

ORD

WYS

5h 43m

1 stop

11:29 am - 3:51 pm

WYS

ORD

27h 22m

2 stops

$432Delta

Sat, Sep 12 - Fri, Sep 18

8:00 am - 12:27 pm

STL

WYS

5h 27m

1 stop

1:09 pm - 11:58 pm

WYS

STL

9h 49m

2 stops

$434Delta

Thu, Aug 20 - Fri, Aug 28

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Delta flights from Illinois to West Yellowstone

Our best Delta deals on Illinois to West Yellowstone flight tickets

Delta

Aug 20

STL8:00 amLambert-St Louis

5h 27m

1 stop

WYS12:27 pmWest Yellowstone

Aug 28

WYS1:09 pmWest Yellowstone

4h 46m

1 stop

STL6:55 pmLambert-St Louis

$304

Delta

Jul 14

ORD7:45 amChicago O'Hare Intl

5h 41m

1 stop

WYS12:26 pmWest Yellowstone

Jul 21

WYS1:10 pmWest Yellowstone

7h 19m

1 stop

ORD9:29 pmChicago O'Hare Intl

$329

Delta

Aug 20

STL8:00 amLambert-St Louis

5h 27m

1 stop

WYS12:27 pmWest Yellowstone

Aug 28

WYS1:09 pmWest Yellowstone

9h 49m

2 stops

STL11:58 pmLambert-St Louis

$413

United Airlines flights from Illinois to West Yellowstone

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

United Airlines

Aug 14

ORD5:55 amChicago O'Hare Intl

8h 25m

1 stop

WYS1:20 pmWest Yellowstone

Aug 21

WYS4:44 pmWest Yellowstone

5h 02m

1 stop

ORD10:46 pmChicago O'Hare Intl

$313

United Airlines

Sep 6

ORD5:55 amChicago O'Hare Intl

8h 25m

1 stop

WYS1:20 pmWest Yellowstone

Sep 12

WYS5:45 pmWest Yellowstone

5h 14m

1 stop

ORD11:59 pmChicago O'Hare Intl

$419

United Airlines

Sep 5

ORD10:55 amChicago O'Hare Intl

6h 11m

1 stop

WYS4:06 pmWest Yellowstone

Sep 12

WYS5:45 pmWest Yellowstone

5h 14m

1 stop

ORD11:59 pmChicago O'Hare Intl

$450

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 9/12

7:45 am-12:28 pm

1 stop5h 43m

West Yellowstone

Sat 9/19

1:09 pm-9:52 pm

1 stop7h 43m

$304

Quickest round-trip

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Thu 8/20

8:00 am-12:27 pm

1 stop5h 27m

West Yellowstone

Fri 8/28

1:09 pm-6:55 pm

1 stop4h 46m

$304

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 8/14

5:55 am-1:20 pm

1 stop8h 25m

West Yellowstone

Fri 8/21

4:44 pm-10:46 pm

1 stop5h 02m

$313

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 7/14

7:45 am-12:26 pm

1 stop5h 41m

West Yellowstone

Tue 7/21

1:10 pm-9:29 pm

1 stop7h 19m

$329

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Thu 8/20

8:00 am-12:27 pm

1 stop5h 27m

West Yellowstone

Fri 8/28

1:09 pm-6:55 pm

1 stop4h 46m

$329

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Thu 8/20

8:00 am-12:27 pm

1 stop5h 27m

West Yellowstone

Fri 8/28

1:09 pm-11:58 pm

2 stops9h 49m

$413

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sun 9/6

5:55 am-1:20 pm

1 stop8h 25m

West Yellowstone

Sat 9/12

5:45 pm-11:59 pm

1 stop5h 14m

$419

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Thu 8/20

7:48 am-12:27 pm

1 stop5h 39m

West Yellowstone

Fri 8/28

1:09 pm-11:57 pm

2 stops9h 48m

$424

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 9/12

7:45 am-12:28 pm

1 stop5h 43m

West Yellowstone

Fri 9/18

11:29 am-3:51 pm

2 stops27h 22m

$432

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Thu 8/20

8:00 am-12:27 pm

1 stop5h 27m

West Yellowstone

Fri 8/28

1:09 pm-11:58 pm

2 stops9h 49m

$434

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 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?

Delta and United Airlines are the most popular carriers 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 56% 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 26m
Direct flights	None

The fastest flight from Illinois to West Yellowstone takes 5h 26m

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

Search flight deals

Frequently asked questions about flying from Illinois to West Yellowstone

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 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.

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.