Cheap Flights from Brussels (BRU) to Boulder (WBU)

Popular airlines from Brussels Airport (BRU) to Boulder, CO (WBU-Boulder Municipal)

Frequently asked questions

How much does a flight from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal) cost?
Lock in a cheap one-way flight or cheap return flight from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal)?
is the cheapest month to fly from BRU to WBU. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BRU to WBU flight.
How many flights per day from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal)?
There aren't any daily nonstop flights from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BRU to WBU?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal)?
To avoid potential delays on the Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal) last-minute?
Booking your ticket from BRU to WBU right before your getaway is generally more expensive. But if there's some wiggle room with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a BRU to WBU flight and hotel package?
You can save money by securing a BRU to WBU 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 it all in one place. After selecting your preferred flights and accommodations, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Brussels - National Airport (BRU) to Boulder, CO (WBU-Boulder Municipal)?
It's usually possible to reschedule or cancel your BRU to WBU flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Brussels - National
Destination airport
Boulder Municipal
Distance
4860 mi

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Brussels to Boulder Flights

The cheapest times to fly from Brussels to Boulder

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 Brussels to Boulder are during the month of . You can find some of the cheapest flights from Brussels to Boulder with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Brussels to Boulder

Sunday is one of the best days to book for cheap flights from Brussels to Boulder: 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 Brussels to Boulder

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 Brussels to Boulder in 2025. 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 Brussels to Boulder 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 Brussels to Boulder 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.

 

Brussels to Boulder Flights

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*Available to One Key members.