Cheap Flights from Boulder (WBU) to West Yellowstone (WYS)

Popular airlines from Boulder, CO (WBU-Boulder Municipal) to West Yellowstone, MT (WYS-Yellowstone)

Frequently asked questions

How much does a flight from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS) cost?
Snag a cheap one-way flight or cheap return flight from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS)?
Flying in can help you save, as it's the cheapest month for flights between WBU and WYS. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from WBU to WYS. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS)?
There aren't any daily nonstop flights available from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from WBU to WYS?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS)?
To arrive at Yellowstone Airport (WYS) without delays, choose a flight that leaves from Boulder, CO (WBU-Boulder Municipal) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS) last-minute?
Waiting until just before your trip to book your flight from WBU to WYS often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for the best chance of getting a bargain.
Is it cheaper to book a WBU to WYS flight and hotel package?
You can save money by securing a WBU to WYS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Boulder, CO (WBU-Boulder Municipal) to Yellowstone Airport (WYS)?
If you reserved your WBU to WYS flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Boulder Municipal
Destination airport
Yellowstone
Distance
439 mi

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Boulder to West Yellowstone Flights

The cheapest times to fly from Boulder to West Yellowstone

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boulder to West Yellowstone are during the month of . You can find some of the cheapest flights from Boulder to West Yellowstone with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boulder to West Yellowstone

Sunday is one of the best days to book for cheap flights from Boulder to West Yellowstone: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boulder to West Yellowstone

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boulder to West Yellowstone in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boulder to West Yellowstone flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boulder to West Yellowstone airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boulder to West Yellowstone Flights

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*Available to One Key members.