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$570+ Cheap flights from Idaho 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BRU
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Idaho to Belgium

Keep the following information in mind while searching for Idaho to Belgium flight deals. Data was last updated October 30, 2025.

Round-trip from

$570
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$637
From Idaho to Belgium
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($532 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/298:17 amBOI - BRU
2 stops20h 58mUnited Airlines
Tue 12/231:50 pmBRU - BOI
2 stops36h 13mUnited Airlines
Deal found 10/29$570
This Expedia deal was found by Cheapflights users on 10/29. 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.
Sat 11/298:17 amBOI - BRU
1 stop16h 38mMultiple Airlines
Tue 12/237:00 amBRU - BOI
2 stops23h 26mMultiple Airlines
Deal found 10/29$856
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sun 12/148:15 amBOI - BRU
2 stops21h 00mUnited Airlines
Sun 12/214:55 pmBRU - BOI
2 stops34h 18mUnited Airlines
Deal found 10/30$940
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/1312:16 pmBOI - BRU
2 stops16h 59mUnited Airlines
Sat 12/2010:00 amBRU - BOI
2 stops20h 59mUnited Airlines
Deal found 10/29$982
This Air Canada deal was found by Cheapflights users on 10/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:12 pmBOI - BRU
2 stops30h 38mAir Canada
Sat 1/310:00 amBRU - BOI
2 stops58h 39mAir Canada
Deal found 10/29$1,279
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/265:12 pmBOI - BRU
2 stops30h 03mUnited Airlines
Sat 1/37:00 amBRU - BOI
2 stops38h 36mUnited Airlines
Deal found 10/30$1,325
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2612:20 pmBOI - BRU
1 stop12h 35mMultiple Airlines
Sat 1/310:00 amBRU - BOI
2 stops58h 39mMultiple Airlines
Deal found 10/30$1,838

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 October 30, 2025.
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

Sat 11/29

8:17 am-1:15 pm

2 stops20h 58m

Brussels Bruxelles-National

Tue 12/23

1:50 pm-6:03 pm

2 stops36h 13m

$570

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Thu 3/26

11:30 pm-8:00 am

1 stop25h 30m

Brussels Bruxelles-National

Mon 3/30

10:45 am-10:50 pm

1 stop20h 05m

$714

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Thu 3/26

6:15 am-7:15 am

2 stops18h 00m

Brussels Bruxelles-National

Mon 3/30

2:25 pm-11:37 am

2 stops29h 12m

$810

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sat 11/29

8:17 am-8:55 am

1 stop16h 38m

Brussels Bruxelles-National

Tue 12/23

7:00 am-10:26 pm

2 stops23h 26m

$856

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 12/14

8:15 am-1:15 pm

2 stops21h 00m

Brussels Bruxelles-National

Sun 12/21

4:55 pm-7:13 pm

2 stops34h 18m

$940

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sat 12/13

12:16 pm-1:15 pm

2 stops16h 59m

Brussels Bruxelles-National

Sat 12/20

10:00 am-10:59 pm

2 stops20h 59m

$982

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sat 4/11

12:55 pm-5:30 pm

2 stops20h 35m

$909

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Fri 4/10

4:30 pm-7:45 am

2 stops55h 15m

$1,012

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 4/12

6:00 pm-6:00 pm

2 stops16h 00m

$1,015

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 4/12

6:00 pm-8:15 am

3 stops54h 15m

$1,102

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 13 results
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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 20h 58m. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$637Average$1,457FlexibilityNo cancel feeOn-time69%

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