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$504+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BRU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/257:11 am
BOI
-
BRU
2 stops41h 44m
United Airlines
Sun 3/110:00 am
BRU
-
BOI
2 stops58h 33m
United Airlines
Deal found 1/28$504
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/155:20 am
BOI
-
BRU
2 stops20h 50m
Delta
Mon 2/232:45 pm
BRU
-
BOI
2 stops35h 04m
Delta
Deal found 1/26$690
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/143:01 pm
BOI
-
BRU
2 stops35h 09m
Delta
Mon 2/232:45 pm
BRU
-
BOI
2 stops33h 30m
Delta
Deal found 1/26$696
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/135:20 am
BOI
-
BRU
2 stops24h 55m
Delta
Wed 2/186:15 am
BRU
-
BOI
2 stops24h 50m
Delta
Deal found 1/27$711
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 2/132:40 pm
BOI
-
BRU
2 stops14h 35m
United Airlines
Fri 2/2010:10 am
BRU
-
BOI
1 stop20h 46m
United Airlines
Deal found 1/26$716
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 2/1312:16 pm
BOI
-
BRU
2 stops16h 59m
United Airlines
Wed 2/1810:10 am
BRU
-
BOI
1 stop16h 37m
United Airlines
Deal found 1/27$717

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 January 29, 2026.

Round-trip from

$504
(United Airlines)

Popular in

January

Cheapest in

October

Average price

$2,552
From Boise Air Term. Gowen Fld to Brussels
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($744 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($121 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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

Wed 2/25

7:11 am-8:55 am

2 stops41h 44m

Brussels Bruxelles-National

Sun 3/1

10:00 am-12:33 pm

2 stops58h 33m

$504

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Tue 2/17

5:20 am-10:10 am

2 stops20h 50m

Brussels Bruxelles-National

Mon 2/23

2:45 pm-6:22 pm

2 stops35h 37m

$690

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 2/15

5:20 am-10:10 am

2 stops20h 50m

Brussels Bruxelles-National

Mon 2/23

2:45 pm-5:49 pm

2 stops35h 04m

$690

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sat 2/14

3:01 pm-10:10 am

2 stops35h 09m

Brussels Bruxelles-National

Mon 2/23

2:45 pm-4:15 pm

2 stops33h 30m

$696

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Fri 2/13

12:16 pm-1:15 pm

2 stops16h 59m

Brussels Bruxelles-National

Wed 2/18

10:10 am-6:47 pm

1 stop16h 37m

$717

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 2/15

12:16 pm-8:55 am

1 stop12h 39m

Brussels Bruxelles-National

Sun 2/22

10:10 am-10:56 pm

1 stop20h 46m

$720

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Fri 2/13

6:25 am-1:15 pm

2 stops22h 50m

Brussels Bruxelles-National

Fri 2/20

10:10 am-11:48 pm

2 stops21h 38m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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
No data available for this route at this time. Please check back soon.

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 January 29, 2026.
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
9,215 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 41h 44m. There are 5002 mi between Boise and Brussels.

  • 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 56% 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

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$637Average$1,204FlexibilityNo cancel feeOn-time69%

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