HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$447+ Cheap flights from Boise (BOI) to Brussels

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BRU
ene. 8 — ene. 151
jue. 1/8
jue. 1/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Brussels with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boise to Brussels

Cheapest flights from Boise to Brussels
Explore the most affordable flight options available from Boise to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 9, 2025.

This Booking.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/222:40 pmBOI - BRU
2 stops58h 15mMultiple Airlines
jue. 1/1510:00 amBRU - BOI
2 stops58h 39mMultiple Airlines
Deal found 12/7$921
This Icelandair deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1111:45 amBOI - BRU
2 stops16h 10mMultiple Airlines
jue. 1/1512:50 pmBRU - BOI
2 stops19h 09mMultiple Airlines
Deal found 12/8$1,178
This Ovago deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/228:20 amBOI - BRU
1 stop16h 35mLufthansa
jue. 1/1510:30 amBRU - BOI
2 stops20h 27mLufthansa
Deal found 12/7$1,356
This Expedia deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/128:55 amBOI - BRU
2 stops40h 40mMultiple Airlines
jue. 1/1510:15 amBRU - BOI
2 stops33h 33mMultiple Airlines
Deal found 12/8$1,488
This United Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/262:10 pmBOI - BRU
2 stops39h 05mUnited Airlines
sáb. 1/37:00 amBRU - BOI
2 stops22h 26mUnited Airlines
Deal found 12/7$1,760
This Ovago deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/1212:16 pmBOI - BRU
2 stops16h 54mLufthansa
jue. 1/1510:10 amBRU - BOI
1 stop20h 47mLufthansa
Deal found 12/8$1,768
This United Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1112:16 pmBOI - BRU
1 stop12h 39mUnited Airlines
jue. 1/1510:10 amBRU - BOI
1 stop20h 47mUnited Airlines
Deal found 12/8$1,786
This United Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/126:20 amBOI - BRU
2 stops17h 45mUnited Airlines
jue. 1/1510:10 amBRU - BOI
2 stops17h 35mUnited Airlines
Deal found 12/8$1,791

Find flight deals from Boise to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 9, 2025.

Round-trip from

$447
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$1,861
From Boise Air Term. Gowen Fld to Brussels
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($383 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($94 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Brussels that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 9, 2025.
Use the filters below to find and compare flights from Boise to Brussels that are best for you.

Fly from

Boise

Fly to

Brussels

Route

Depart

Return

Price

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

mié. 1/21

12:19 pm-8:55 am

1 stop12h 36m

Brussels Bruxelles-National

mié. 1/28

7:00 am-6:07 pm

2 stops19h 07m

$447

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

vie. 1/23

8:15 am-8:55 am

1 stop16h 40m

Brussels Bruxelles-National

vie. 1/30

10:00 am-7:13 pm

2 stops41h 13m

$463

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

jue. 1/15

12:19 pm-1:15 pm

2 stops16h 56m

Brussels Bruxelles-National

dom. 1/25

10:00 am-10:57 pm

2 stops44h 57m

$484

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

mié. 2/11

8:15 am-1:15 pm

2 stops21h 00m

Brussels Bruxelles-National

dom. 2/15

10:10 am-10:51 pm

1 stop20h 41m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Best time to book a flight from Boise to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Boise 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 Boise to Brussels

How much does it cost to fly round-trip from Boise to Brussels?

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated diciembre 9, 2025.
Get a feel of what it's like to fly with United Airlines from Boise to Brussels by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,089 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,089 reviews
United Airlines
7.4
Good
9,089 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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

  • What airport do you fly from for flights from Boise to Brussels?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly out of if you book a flight from Boise to Brussels. You should not have trouble finding flights to Brussels from Air Term. Gowen Fld; the airport handles an average of 0 outbound flights to Brussels per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Boise airport to Brussels. It is only a 3.3 mi journey to Air Term. Gowen Fld (BOI) from Boise’s city center.

  • How long is the flight from Boise to Brussels?

    Departing from Boise to Brussels will take you 12h 36m. There are 5002 mi between Boise and Brussels. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Boise to Brussels round-trip?

    Flying on United Airlines is currently your cheapest option to Brussels, with prices starting at $637. United Airlines is currently priced 53% below the average price you’ll pay for this route.

  • Can I find deals for flights from Boise to Brussels that include hotel bookings?

    Yes. In addition to deals on Boise to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Brussels.

  • Can I find deals for business class flights from Boise to Brussels?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boise to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Bruxelles-National flights

Top airline flying from Boise to Brussels

Discover the top airline that operate flights from Boise to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$637Average$1,201FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.