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$425+ Cheap flights from Idaho to Belgium

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BRU
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
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Cheap flight deals from Idaho to Belgium

Cheapest flights from Idaho to Belgium
Explore the most affordable flight options available from Idaho to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 7, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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 3/32:40 pm
BOI
-
BRU
2 stops34h 15m
United Airlines
Tue 3/1010:00 am
BRU
-
BOI
2 stops43h 56m
United Airlines
Deal found 2/3$486
This United Airlines deal was found by Cheapflights users on 2/6. 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 3/236:55 pm
BOI
-
BRU
2 stops35h 20m
United Airlines
Mon 3/309:25 am
BRU
-
BOI
2 stops45h 32m
United Airlines
Deal found 2/6$572
This Delta deal was found by Cheapflights users on 2/6. 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.
Mon 3/2311:30 pm
BOI
-
BRU
2 stops25h 05m
Delta
Mon 3/309:45 am
BRU
-
BOI
1 stop20h 40m
Delta
Deal found 2/6$605
This United Airlines deal was found by Cheapflights users on 2/4. 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 2/258:05 am
BOI
-
BRU
2 stops21h 10m
United Airlines
Sun 3/111:55 am
BRU
-
BOI
2 stops19h 53m
United Airlines
Deal found 2/4$691
This Iberia deal was found by Cheapflights users on 2/4. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:38 pm
BOI
-
BRU
2 stops22h 17m
Multiple Airlines
Sat 10/1710:40 am
BRU
-
BOI
2 stops18h 25m
Multiple Airlines
Deal found 2/4$770
This United Airlines deal was found by Cheapflights users on 2/6. 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 6/92:15 pm
BOI
-
BRU
2 stops21h 45m
United Airlines
Thu 7/29:25 am
BRU
-
BOI
2 stops40h 31m
United Airlines
Deal found 2/6$878

Find flight deals from Idaho to Belgium

Keep the following information in mind while searching for Idaho to Belgium flight deals. Data was last updated February 7, 2026.

Round-trip from

$486
(United Airlines)

One-way from

$425
(Delta)

Popular in

January

Cheapest in

October

Average price

$720
From Idaho to Belgium
Search Deals
One-way flight from Idaho to Belgium
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($366 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($121 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 February 7, 2026.
Use the filters below to find and compare flights from Idaho to Belgium that are best for you.

Fly from

Idaho

Fly to

Belgium

Route

Depart

Return

Price

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Tue 3/3

2:40 pm-8:55 am

2 stops34h 15m

Brussels Bruxelles-National

Tue 3/10

10:00 am-10:56 pm

2 stops43h 56m

$486

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Mon 3/23

6:55 pm-1:15 pm

2 stops35h 20m

Brussels Bruxelles-National

Mon 3/30

9:25 am-10:57 pm

2 stops45h 32m

$572

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Mon 3/23

11:30 pm-7:35 am

2 stops25h 05m

Brussels Bruxelles-National

Mon 3/30

9:45 am-10:25 pm

1 stop20h 40m

$605

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Wed 2/25

6:25 am-1:15 pm

2 stops22h 50m

Brussels Bruxelles-National

Sun 3/1

11:55 am-11:48 pm

2 stops19h 53m

$691

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Tue 6/9

10:38 am-2:40 pm

2 stops20h 02m

$425

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Tue 6/9

8:40 am-1:15 pm

3 stops20h 35m

$1,353

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Best time to book a flight from Idaho to Belgium

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

Related info for your journey

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

  • How long is the flight from Idaho to Belgium?

    There are many flights that can get you from Idaho to Belgium in 25h 05m. Fly via United Airlines or Delta to get the fastest option. There are 5002 mi between Idaho and Belgium. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho 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

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Alternative routes for Idaho to Belgium

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Idaho to Belgium

Discover the top airline that operate flights from Idaho 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 February 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$637Average$1,188FlexibilityNo cancel feeOn-time69%

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