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$244+ Cheap flights from Idaho to Europe

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPH
Oct 10 — Oct 171
Fri 10/10
Fri 10/17
1 adult, Economy
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Cheap flight deals from Idaho to Europe

Keep the following information in mind while searching for Idaho to Europe flight deals. Data was last updated September 10, 2025.

Round-trip from

$509
(lol.travel)

One-way from

$244
(Norse)

Popular in

December

Cheapest in

March

Average price

$1,138
From Idaho to Europe
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One-way flight from Idaho to Europe
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Idaho to Europe

Cheapest flights from Idaho to Europe
Explore the most affordable flight options available from Idaho to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2025.

This lol.travel deal was found by Cheapflights users on 9/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2012:27 pmBOI - BCN
2 stops35h 23mUnited Airlines
Fri 10/312:00 pmBCN - BOI
2 stops38h 47mUnited Airlines
Deal found 9/10$509
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/74:25 pmBOI - KEF
1 stop11h 00mMultiple Airlines
Wed 10/154:50 pmKEF - BOI
1 stop12h 15mMultiple Airlines
Deal found 9/10$520
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/163:54 pmBOI - MAD
2 stops40h 16mScandinavian Airlines
Sat 12/66:35 pmMAD - BOI
2 stops36h 01mScandinavian Airlines
Deal found 9/9$530
This Scandinavian Airlines deal was found by Cheapflights users on 9/8. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:54 pmBOI - LIS
2 stops34h 01mScandinavian Airlines
Wed 12/107:05 amLIS - BOI
2 stops22h 31mScandinavian Airlines
Deal found 9/8$539
This KLM deal was found by Cheapflights users on 9/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:40 pmBOI - BCN
1 stop35h 40mKLM
Fri 10/311:35 amBCN - BOI
1 stop18h 48mKLM
Deal found 9/10$545
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:33 pmBOI - KEF
1 stop11h 32mMultiple Airlines
Wed 11/124:55 pmKEF - BOI
1 stop25h 48mMultiple Airlines
Deal found 9/8$547
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:39 pmBOI - BCN
3 stops31h 41mMultiple Airlines
Fri 10/312:10 pmBCN - BOI
2 stops19h 34mMultiple Airlines
Deal found 9/10$551
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 10/12:44 pmBOI - BCN
1 stop15h 16mUnited Airlines
Tue 10/73:15 pmBCN - BOI
2 stops26h 38mUnited Airlines
Deal found 9/8$557
This Iberia deal was found by Cheapflights users on 9/9. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amBOI - MAD
1 stop18h 25mIberia
Tue 12/912:40 pmMAD - BOI
1 stop17h 45mIberia
Deal found 9/9$557
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:20 amBOI - BCN
2 stops19h 15mMultiple Airlines
Thu 11/271:35 pmBCN - BOI
2 stops31h 55mMultiple Airlines
Deal found 9/10$558
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:35 amBOI - MAD
2 stops19h 40mDelta
Tue 12/910:00 amMAD - BOI
2 stops22h 04mDelta
Deal found 9/8$561
This Finnair deal was found by Cheapflights users on 9/9. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amBOI - MAD
2 stops16h 55mMultiple Airlines
Tue 12/912:40 pmMAD - BOI
1 stop17h 45mMultiple Airlines
Deal found 9/9$562

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Europe 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 September 10, 2025.
Use the filters below to find and compare flights from Idaho to Europe that are best for you.

Fly from

Idaho

Fly to

Europe

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 9/20

12:27 pm-7:50 am

2 stops35h 23m

Barcelona-El Prat

Fri 10/3

12:00 pm-6:47 pm

2 stops38h 47m

$509

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 12/6

3:54 pm-8:55 am

2 stops34h 01m

Lisbon Humberto Delgado

Wed 12/10

4:55 pm-10:36 pm

2 stops36h 41m

$539

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Thu 10/30

12:33 pm-6:05 am

1 stop11h 32m

Reykjavik Keflavik Intl

Wed 11/12

4:55 pm-11:43 am

1 stop25h 48m

$547

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 2/18

7:39 am-9:25 am

1 stop17h 46m

Madrid Barajas

Fri 2/27

1:00 pm-9:09 pm

1 stop16h 09m

$557

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

7:00 am-9:25 am

1 stop18h 25m

Madrid Barajas

Tue 12/9

12:40 pm-10:25 pm

1 stop17h 45m

$557

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 2/18

7:00 am-8:00 am

2 stops17h 00m

Madrid Barajas

Fri 2/27

1:35 pm-11:05 pm

2 stops17h 30m

$557

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

7:00 am-7:55 am

2 stops16h 55m

Madrid Barajas

Mon 12/8

12:55 am-12:20 pm

2 stops19h 25m

$561

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

5:35 am-9:15 am

2 stops19h 40m

Madrid Barajas

Tue 12/9

10:00 am-12:04 am

2 stops22h 04m

$561

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 2/18

1:20 pm-1:35 pm

2 stops16h 15m

Madrid Barajas

Fri 2/27

1:00 pm-9:09 pm

1 stop16h 09m

$561

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

7:00 am-7:40 am

2 stops16h 40m

Madrid Barajas

Tue 12/9

12:40 pm-10:25 pm

1 stop17h 45m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Europe

Have a flexible travel schedule? Discover the best time to fly to Europe 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 Europe

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

Currently, November is the cheapest month in which you can book a flight from Idaho to Europe (average of $523). Flying from Idaho to Europe in June is currently the most expensive (average of $910). 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.

What is the cheapest time of day to fly from ID to EU?

Find hourly flight availability from Idaho to Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Europe as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Europe. 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 Europe?

    For as low as $557, United Airlines can have you in Europe from Idaho in 17h 46m. The distance between Idaho and Europe is about 5275 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Idaho to Europe one-way?

    One-way options have recently been found by users for as low as $330 on United Airlines. Other airlines that offer cheap prices include Delta from $348 and Air Canada from $357 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Europe 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 Europe?

    Currently, November is the cheapest month in which you can book a flight from Idaho to Europe (average of $523). Flying from Idaho to Europe in June is currently the most expensive (average of $910). 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

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Alternative routes for Idaho to Europe

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Idaho to Europe

Discover the top 10 airlines that operate flights from Idaho to Europe. 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 September 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$549Average$1,004FlexibilityNo cancel feeOn-time71%
IberiaCheapest$564Average$776FlexibilityNo cancel feeOn-time77%
KLMCheapest$577Average$863FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$579Average$917FlexibilityNo cancel feeOn-time69%
DeltaCheapest$590Average$1,018FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$602Average$1,181FlexibilityNo cancel feeOn-time67%
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$643Average$1,052FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$695Average$977FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$722Average$987FlexibilityNo cancel feeOn-time77%

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