HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belgium

$687+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BRU
Aug 31 — Sep 71
Sun 8/31
Sun 9/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Belgium 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 Idaho to Belgium

Keep the following information in mind while searching for Idaho to Belgium flight deals. Data was last updated August 26, 2025.

Round-trip from

$687
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$1,073
From Idaho to Belgium
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($330 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($80 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 26, 2025.

This United Airlines deal was found by Cheapflights users on 8/24. 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.
Thu 12/412:16 pmBOI - BRU
2 stops16h 59mUnited Airlines
Mon 12/810:00 amBRU - BOI
2 stops44h 45mUnited Airlines
Deal found 8/24$687
This Gurufare deal was found by Cheapflights users on 8/26. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2110:48 amBOI - BRU
2 stops18h 52mLufthansa
Sat 9/275:30 pmBRU - BOI
2 stops33h 17mLufthansa
Deal found 8/26$1,240
This Air Canada deal was found by Cheapflights users on 8/24. 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.
Mon 9/15:00 amBOI - BRU
2 stops18h 50mMultiple Airlines
Wed 1/77:00 amBRU - BOI
3 stops23h 57mMultiple Airlines
Deal found 8/24$1,248
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/17:00 amBOI - BRU
2 stops18h 00mUnited Airlines
Wed 1/710:10 amBRU - BOI
2 stops21h 38mUnited Airlines
Deal found 8/24$1,399

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 August 26, 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

Thu 12/4

8:15 am-1:15 pm

2 stops21h 00m

Brussels Bruxelles-National

Mon 12/8

10:00 am-12:17 pm

2 stops34h 17m

$687

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 9/21

10:48 am-1:40 pm

2 stops18h 52m

Brussels Bruxelles-National

Sat 9/27

5:30 pm-6:47 pm

2 stops33h 17m

$1,240

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Sun 9/21

11:00 am-7:50 pm

3 stops24h 50m

Brussels Bruxelles-National

Sat 9/27

10:20 am-11:00 pm

2 stops20h 40m

$1,537

BoiseBrussels

BOI - BRU

BOIBRU

Boise Air Term. Gowen Fld

Thu 9/25

8:31 pm-12:50 pm

2 stops32h 19m

Brussels Bruxelles-National

Mon 10/6

1:50 pm-11:05 pm

2 stops17h 15m

$5,347

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/23

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 21h. Fly via United Airlines to get the fastest option. There are 5002 mi between Idaho and Belgium.

  • 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.

  • What is the cheapest month to book a flight from Idaho to Belgium?

    Currently, November is the cheapest month in which you can book a flight from Idaho to Belgium (average of $614). Flying from Idaho to Belgium in June is currently the most expensive (average of $1,077). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 Idaho to Belgium

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
John F Kennedy Intl to Gatwick flights
Newark to Charles de Gaulle flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
LaGuardia to Heathrow flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Istanbul flights
Newark to London City flights
John F Kennedy Intl to Lisbon flights
John F Kennedy Intl to Stansted flights
Newark to Orly flights
Boston to Heathrow flights
John F Kennedy Intl to Luton flights
Dulles Intl to Heathrow flights
LaGuardia to Gatwick flights
Los Angeles to Heathrow flights
Newark to Lisbon flights
John F Kennedy Intl to Malpensa flights
John F Kennedy Intl to Orly flights
LaGuardia to Charles de Gaulle flights
Newark to Malpensa flights
Newark to Stansted flights
Miami to Madrid flights
Newark to Madrid flights
Newark to Athens flights
Newark to Barcelona-El Prat flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
John F Kennedy Intl to Madrid flights
Boston to Charles de Gaulle flights
Los Angeles to Charles de Gaulle flights
O'Hare Intl to Charles de Gaulle flights
Baltimore to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Newark to Luton flights
Dallas/Fort Worth to Heathrow flights
Boston to Lisbon flights
John F Kennedy Intl to Dublin flights
Newark to Dublin flights
Seattle to Heathrow flights
Boston to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Barcelona-El Prat flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Frederic Chopin flights
John F Kennedy Intl to Athens flights

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 August 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$903Average$2,063FlexibilityNo 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.