How long is the flight from St. Louis to West Yellowstone?

For as low as $408, United Airlines can have you in West Yellowstone from St. Louis in 5h 17m. The distance between St. Louis and West Yellowstone is about 1141 mi.

What is the cheapest airline to fly from St. Louis to West Yellowstone round-trip?

United Airlines, at $440, was found to be the cheapest airline from St. Louis to West Yellowstone..

In terms of precipitation, rainfall in West Yellowstone ranges from 1.2 - 2.0 inches per month. January is typically the wettest month, when rainfall can reach 2.0 in. April is typically the driest time to visit West Yellowstone when rainfall is around 1.2 in.

If weather is an important factor for your trip to West Yellowstone, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 15.8 F).

What is the cheapest time of day to fly from STL to WYS?

When flying from St. Louis to West Yellowstone, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on St. Louis-West Yellowstone flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-West Yellowstone flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-West Yellowstone flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-West Yellowstone flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-West Yellowstone flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to West Yellowstone that include hotel bookings?

Yes. In addition to deals on St. Louis to West Yellowstone flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to West Yellowstone?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to West Yellowstone.

Can I find deals for business class flights from St. Louis to West Yellowstone?

Yes. Cheapflights offers flight deals from St. Louis to West Yellowstone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$408+ Flights from St. Louis to West Yellowstone

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Cheap flight deals from St. Louis to West Yellowstone

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$408 (United Airlines)

Provider with most accurate pricing for Lambert-St Louis-West Yellowstone flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-West Yellowstone flights.

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From Lambert-St Louis to West Yellowstone

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Find flight deals from St. Louis to West Yellowstone

Best flights from St. Louis to West Yellowstone
Discover carefully curated flight deals from St. Louis to West Yellowstone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2025.

Sat 5/165:20 amSTL - WYS

1 stop5h 17mUnited Airlines

Sat 5/2310:15 amWYS - STL

1 stop5h 11mUnited Airlines

Deal found 11/20

$408

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/16

5:20 am-9:37 am

1 stop5h 17m

West Yellowstone

Sat 5/23

10:15 am-4:26 pm

1 stop5h 11m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Compare providers for flights from St. Louis to West Yellowstone

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to West Yellowstone in November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-West Yellowstone flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-West Yellowstone flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-West Yellowstone flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-West Yellowstone flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-West Yellowstone flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to West Yellowstone

What is the cheapest month to book a flight from St. Louis to West Yellowstone?

Currently, May is the cheapest month in which you can book a flight from St. Louis to West Yellowstone (average of $199). Flying from St. Louis to West Yellowstone in February is currently the most expensive (average of $319). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing West Yellowstone

See what other customers who have flown with United Airlines from St. Louis to West Yellowstone have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,029 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,029 reviews

United Airlines

7.4

Good

9,029 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from St. Louis to West Yellowstone?
For as low as $408, United Airlines can have you in West Yellowstone from St. Louis in 5h 17m. The distance between St. Louis and West Yellowstone is about 1141 mi.
What is the cheapest airline to fly from St. Louis to West Yellowstone round-trip?
United Airlines, at $440, was found to be the cheapest airline from St. Louis to West Yellowstone..
Can I find deals for flights from St. Louis to West Yellowstone that include hotel bookings?
Yes. In addition to deals on St. Louis to West Yellowstone flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to West Yellowstone?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to West Yellowstone.
Can I find deals for business class flights from St. Louis to West Yellowstone?
Yes. Cheapflights offers flight deals from St. Louis to West Yellowstone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to West Yellowstone?
Currently, May is the cheapest month in which you can book a flight from St. Louis to West Yellowstone (average of $199). Flying from St. Louis to West Yellowstone in February is currently the most expensive (average of $319). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from St. Louis to West Yellowstone

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$440	Average$725	FlexibilityNo cancel fee	On-time69%

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$408+ Cheap flights from St. Louis to West Yellowstone (STL - WYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to West Yellowstone with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to West Yellowstone

Most accurate provider

Most trusted provider

Round-trip from

Find flight deals from St. Louis to West Yellowstone

Best flights from St. Louis to West YellowstoneDiscover carefully curated flight deals from St. Louis to West Yellowstone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2025.

Discover carefully curated flight deals from St. Louis to West Yellowstone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from St. Louis to West Yellowstone

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to West Yellowstone in November.

Best time to book a flight from St. Louis to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to West Yellowstone

What is the cheapest month to book a flight from St. Louis to West Yellowstone?

Reviews of airlines servicing West Yellowstone

See what other customers who have flown with United Airlines from St. Louis to West Yellowstone have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to West Yellowstone. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from St. Louis to West Yellowstone?

What is the cheapest airline to fly from St. Louis to West Yellowstone round-trip?

Can I find deals for flights from St. Louis to West Yellowstone that include hotel bookings?

How can I find direct flights from St. Louis to West Yellowstone?

Can I find deals for business class flights from St. Louis to West Yellowstone?

What is the cheapest month to book a flight from St. Louis to West Yellowstone?

Traveling to a place near West Yellowstone?

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Alternative routes for St. Louis to West Yellowstone

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Top airline flying from St. Louis to West Yellowstone

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Travel Smart

Best flights from St. Louis to West Yellowstone
Discover carefully curated flight deals from St. Louis to West Yellowstone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2025.