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 10m on average. On the other hand, flying from Moline to Bozeman takes 5h 48m 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.

$304 Cheap Flights from Illinois to West Yellowstone in 2026

1 adult

0 bags

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 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 - 12:25 pm

ORD

WYS

5h 40m

1 stop

1:10 pm - 9:57 pm

WYS

ORD

7h 47m

1 stop

$304Delta

Sat, Jun 6 - Thu, Jun 11

7:45 am - 12:28 pm

ORD

WYS

5h 43m

1 stop

1:10 pm - 11:59 pm

WYS

ORD

9h 49m

2 stops

$314Delta

Sat, Jun 13 - Tue, Jun 23

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$329United Airlines

Fri, Jun 5 - Fri, Jun 12

7:45 am - 12:25 pm

ORD

WYS

5h 40m

1 stop

1:10 pm - 9:57 pm

WYS

ORD

7h 47m

1 stop

$334Delta

Sat, Jun 6 - Thu, Jun 11

7:05 am - 1:32 pm

ORD

WYS

7h 27m

1 stop

2:19 pm - 9:54 pm

WYS

ORD

6h 35m

1 stop

$354United Airlines

Fri, May 29 - Tue, Jun 2

7:00 am - 12:25 pm

STL

WYS

6h 25m

1 stop

1:10 pm - 7:03 pm

WYS

STL

4h 53m

1 stop

$354Delta

Sat, May 30 - Wed, Jun 3

9:06 am - 1:32 pm

STL

WYS

5h 26m

1 stop

5:45 pm - 11:57 pm

WYS

STL

5h 12m

1 stop

$358United Airlines

Sat, May 30 - Sat, Jun 6

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

2:19 pm - 10:49 pm

WYS

ORD

7h 30m

1 stop

$368United Airlines

Sat, Jun 13 - Tue, Jun 16

7:45 am - 12:28 pm

ORD

WYS

5h 43m

1 stop

1:10 pm - 11:59 pm

WYS

ORD

9h 49m

2 stops

$374Delta

Tue, Jun 16 - Tue, Jun 23

6:00 am - 4:37 pm

STL

WYS

11h 37m

2 stops

5:45 pm - 11:57 pm

WYS

STL

5h 12m

1 stop

$389United Airlines

Sat, May 30 - Sat, Jun 6

United Airlines flights from Illinois to West Yellowstone

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

United Airlines

May 29

ORD7:05 amChicago O'Hare Intl

7h 27m

1 stop

WYS1:32 pmWest Yellowstone

Jun 2

WYS2:19 pmWest Yellowstone

6h 35m

1 stop

ORD9:54 pmChicago O'Hare Intl

$354

United Airlines

May 30

STL9:06 amLambert-St Louis

5h 26m

1 stop

WYS1:32 pmWest Yellowstone

Jun 6

WYS5:45 pmWest Yellowstone

5h 12m

1 stop

STL11:57 pmLambert-St Louis

$358

United Airlines

Jun 13

ORD6:00 amChicago O'Hare Intl

8h 32m

1 stop

WYS1:32 pmWest Yellowstone

Jun 16

WYS2:19 pmWest Yellowstone

7h 30m

1 stop

ORD10:49 pmChicago O'Hare Intl

$368

Delta flights from Illinois to West Yellowstone

Our best Delta deals on Illinois to West Yellowstone flight tickets

Delta

Jun 6

ORD7:45 amChicago O'Hare Intl

5h 40m

1 stop

WYS12:25 pmWest Yellowstone

Jun 11

WYS1:10 pmWest Yellowstone

7h 47m

1 stop

ORD9:57 pmChicago O'Hare Intl

$304

Delta

Jun 13

ORD7:45 amChicago O'Hare Intl

5h 43m

1 stop

WYS12:28 pmWest Yellowstone

Jun 23

WYS1:10 pmWest Yellowstone

9h 49m

2 stops

ORD11:59 pmChicago O'Hare Intl

$314

Delta

Jun 6

ORD7:45 amChicago O'Hare Intl

5h 40m

1 stop

WYS12:25 pmWest Yellowstone

Jun 11

WYS1:10 pmWest Yellowstone

7h 47m

1 stop

ORD9:57 pmChicago O'Hare Intl

$334

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/6

7:45 am-12:25 pm

1 stop5h 40m

West Yellowstone

Thu 6/11

1:10 pm-9:57 pm

1 stop7h 47m

$304

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/13

7:45 am-12:28 pm

1 stop5h 43m

West Yellowstone

Tue 6/23

1:10 pm-11:59 pm

2 stops9h 49m

$314

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 6/5

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Fri 6/12

5:45 pm-12:44 am

1 stop5h 59m

$329

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Sat 6/6

7:45 am-12:25 pm

1 stop5h 40m

West Yellowstone

Thu 6/11

1:10 pm-9:57 pm

1 stop7h 47m

$334

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Fri 5/29

7:05 am-1:32 pm

1 stop7h 27m

West Yellowstone

Tue 6/2

2:19 pm-9:54 pm

1 stop6h 35m

$354

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

7:00 am-12:25 pm

1 stop6h 25m

West Yellowstone

Wed 6/3

1:10 pm-7:03 pm

1 stop4h 53m

$354

Quickest round-trip

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

9:06 am-1:32 pm

1 stop5h 26m

West Yellowstone

Sat 6/6

5:45 pm-11:57 pm

1 stop5h 12m

$358

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

$368

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 6/16

7:45 am-12:28 pm

1 stop5h 43m

West Yellowstone

Tue 6/23

1:10 pm-11:59 pm

2 stops9h 49m

$374

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

6:00 am-4:37 pm

2 stops11h 37m

West Yellowstone

Sat 6/6

5:45 pm-11:57 pm

1 stop5h 12m

$389

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?

United Airlines and Delta 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 59% 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 40m
Direct flights	None

The fastest flight from Illinois to West Yellowstone takes 5h 40m

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.