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$589+ Cheap flights from Boise (BOI) to Belgium

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BRU
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap flight deals from Boise to Belgium

Cheapest flights from Boise to Belgium
Explore the most affordable flight options available from Boise to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. 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.
Tue 12/18:20 am
BOI
-
BRU
2 stops20h 55m
United Airlines
Thu 12/310:10 am
BRU
-
BOI
2 stops21h 49m
United Airlines
Deal found 3/8$589
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Mon 11/306:20 am
BOI
-
BRU
2 stops22h 55m
United Airlines
Fri 12/1110:00 am
BRU
-
BOI
2 stops31h 43m
United Airlines
Deal found 3/10$638
This Finnair deal was found by Cheapflights users on 3/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:00 am
BOI
-
BRU
2 stops28h 20m
Multiple Airlines
Tue 4/287:05 pm
BRU
-
BOI
2 stops35h 49m
Multiple Airlines
Deal found 3/12$676
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Mon 11/306:20 am
BOI
-
BRU
2 stops22h 55m
United Airlines
Sat 12/1210:10 am
BRU
-
BOI
2 stops21h 49m
United Airlines
Deal found 3/10$689
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Tue 4/212:37 pm
BOI
-
BRU
2 stops14h 38m
United Airlines
Tue 4/2810:15 am
BRU
-
BOI
1 stop20h 47m
United Airlines
Deal found 3/12$695
This Delta deal was found by Cheapflights users on 3/11. 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 11/2911:30 pm
BOI
-
BRU
1 stop25h 30m
Delta
Sat 12/1211:00 am
BRU
-
BOI
2 stops31h 19m
Delta
Deal found 3/11$698
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:14 pm
BOI
-
BRU
2 stops17h 56m
American Airlines
Tue 4/1412:05 pm
BRU
-
BOI
2 stops32h 46m
American Airlines
Deal found 3/9$700
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/291:40 pm
BOI
-
BRU
2 stops19h 00m
Multiple Airlines
Sat 12/129:55 am
BRU
-
BOI
2 stops21h 00m
Multiple Airlines
Deal found 3/11$703
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:00 am
BOI
-
BRU
2 stops20h 10m
Multiple Airlines
Sat 12/129:55 am
BRU
-
BOI
2 stops21h 00m
Multiple Airlines
Deal found 3/10$704

Find flight deals from Boise to Belgium

Keep the following information in mind while searching for Boise to Belgium flight deals. Data was last updated March 13, 2026.

Round-trip from

$676
(Finnair)

Popular in

January

Cheapest in

October

Average price

$681
From Boise Air Term. Gowen Fld to Belgium
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($498 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($149 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Belgium 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 March 13, 2026.
Use the filters below to find and compare flights from Boise to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Tue 4/21

6:00 am-6:20 pm

2 stops28h 20m

Brussels Bruxelles-National

Tue 4/28

7:05 pm-10:54 pm

2 stops35h 49m

$676

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Tue 4/21

2:37 pm-1:15 pm

2 stops14h 38m

Brussels Bruxelles-National

Tue 4/28

10:15 am-11:02 pm

1 stop20h 47m

$695

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Thu 4/9

2:37 pm-1:15 pm

2 stops14h 38m

Brussels Bruxelles-National

Thu 4/16

9:40 am-7:53 pm

2 stops42h 13m

$730

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 4/26

5:29 pm-8:00 pm

2 stops18h 31m

Brussels Bruxelles-National

Sun 5/3

10:15 am-10:50 pm

1 stop20h 35m

$745
Quickest round-trip

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sat 4/25

2:37 pm-1:15 pm

2 stops14h 38m

Brussels Bruxelles-National

Sat 5/2

10:15 am-7:33 pm

1 stop17h 18m

$795

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Thu 5/14

12:30 pm-8:00 pm

2 stops23h 30m

Brussels Bruxelles-National

Sat 5/23

9:55 am-11:55 pm

2 stops46h 00m

$843

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Thu 5/14

8:34 am-1:15 pm

3 stops20h 41m

Brussels Bruxelles-National

Sat 5/23

9:40 am-9:35 pm

2 stops19h 55m

$1,162

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 4/5

10:35 am-7:55 pm

2 stops25h 20m

Brussels Bruxelles-National

Thu 4/16

8:40 am-9:22 pm

2 stops20h 42m

$4,314

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Sorted by cheapest first

Best time to book a flight from Boise to Belgium

Have a flexible travel schedule? Discover the best time to fly to Belgium 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 Belgium
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Belgium

Get insights into the airlines that provide service to Belgium. 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 Belgium. Reviews last updated March 13, 2026.
Peruse reviews from past customers who have flown with United Airlines from Boise to Belgium to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,418 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

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
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

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 Belgium. 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 Belgium?

    Located just 3.3 mi from the city center, Boise Air Term. Gowen Fld (BOI) is the airport most travelers will use when flying to Belgium from Boise.

  • How long is the flight from Boise to Belgium?

    There are many flights that can get you from Boise to Belgium in 14h 38m. Fly via United Airlines or American Airlines to get the fastest option. Airlines will cover a distance of 5002 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Belgium 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.

Top airline flying from Boise to Belgium

Discover the top airline that operate flights from Boise to Belgium. 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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$637Average$886FlexibilityNo cancel feeOn-time69%

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