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$273+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPH
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 15, 2025.

Round-trip from

$536
(Billigflug)

One-way from

$273
(Kiwi.com)

Popular in

December

Cheapest in

October
From Idaho to Europe
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One-way flight from Idaho to Europe
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Highest demand for flights based on searches. 7% potential increase in price ($88 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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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 15, 2025.

This Air Canada deal was found by Cheapflights users on 9/13. 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.
Sun 9/215:00 amBOI - BCN
2 stops18h 50mAir Canada
Tue 10/712:10 pmBCN - BOI
2 stops39h 05mAir Canada
Deal found 9/13$530
This Air Canada deal was found by Cheapflights users on 9/13. 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 9/227:09 pmBOI - MAD
2 stops27h 31mAir Canada
Tue 10/712:45 pmMAD - BOI
2 stops36h 13mAir Canada
Deal found 9/13$534
This Air Canada deal was found by Cheapflights users on 9/13. 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 9/225:39 pmBOI - BCN
2 stops30h 11mAir Canada
Tue 10/712:10 pmBCN - BOI
2 stops43h 34mAir Canada
Deal found 9/13$535
This Air Canada deal was found by Cheapflights users on 9/13. 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.
Tue 9/235:00 amBOI - BCN
2 stops20h 20mAir Canada
Tue 10/712:10 pmBCN - BOI
2 stops43h 34mAir Canada
Deal found 9/13$536
This Billigflug deal was found by Cheapflights users on 9/12. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:20 amBOI - LIS
2 stops21h 00mMultiple Airlines
Tue 11/45:00 amLIS - BOI
2 stops25h 28mMultiple Airlines
Deal found 9/12$536
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 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 9/11$539
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:00 amBOI - BCN
2 stops42h 20mAir Canada
Fri 10/241:15 pmBCN - BOI
2 stops41h 15mAir Canada
Deal found 9/14$543
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/239:52 amBOI - BCN
1 stop20h 08mUnited Airlines
Tue 10/74:00 pmBCN - BOI
1 stop15h 44mUnited Airlines
Deal found 9/13$553
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/245:00 amBOI - BCN
2 stops19h 20mUnited Airlines
Thu 10/911:15 amBCN - BOI
2 stops30h 27mUnited Airlines
Deal found 9/13$557
This Iberia deal was found by Cheapflights users on 9/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amBOI - MAD
1 stop15h 15mIberia
Tue 12/912:40 pmMAD - BOI
1 stop17h 45mIberia
Deal found 9/12$557
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/227:09 pmBOI - BCN
1 stop34h 51mUnited Airlines
Tue 10/74:00 pmBCN - BOI
1 stop15h 44mUnited Airlines
Deal found 9/13$558
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/215:00 amBOI - BCN
2 stops20h 20mUnited Airlines
Tue 10/74:00 pmBCN - BOI
1 stop15h 44mUnited Airlines
Deal found 9/13$559

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 15, 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

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 10/28

6:20 am-9:20 am

2 stops21h 00m

Lisbon Humberto Delgado

Tue 11/4

5:00 am-11:28 pm

2 stops25h 28m

$536

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

7:05 am-10:36 pm

2 stops22h 31m

$539

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/12

7:00 am-9:20 am

2 stops42h 20m

Barcelona-El Prat

Fri 10/24

1:15 pm-10:30 pm

2 stops41h 15m

$543

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 9/24

7:45 am-2:00 pm

1 stop22h 15m

Barcelona-El Prat

Tue 10/7

11:15 am-11:44 pm

2 stops20h 29m

$557

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 1/25

5:40 am-8:00 am

2 stops18h 20m

Barcelona-El Prat

Tue 2/3

10:15 am-12:21 am

2 stops22h 06m

$557

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 1/25

7:32 am-1:20 pm

2 stops21h 48m

Barcelona-El Prat

Tue 2/3

10:40 am-9:18 pm

1 stop18h 38m

$557

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

6:37 am-8:50 am

2 stops18h 13m

Madrid Barajas

Mon 12/8

12:55 am-12:20 pm

2 stops19h 25m

$562

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

5:35 am-8:00 am

2 stops18h 25m

Madrid Barajas

Tue 12/9

10:00 am-12:43 am

2 stops22h 43m

$562

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

7:00 am-8:50 am

2 stops17h 50m

Madrid Barajas

Tue 12/9

12:40 pm-10:25 pm

1 stop17h 45m

$562

SpokaneRome

GEG - FCO

GEGFCO

Spokane

Sat 11/15

12:45 pm-7:45 am

2 stops34h 00m

Rome Fiumicino

Thu 11/27

11:15 am-8:45 pm

2 stops42h 30m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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 15, 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, Scandinavian Airlines can have you in Europe from Idaho in 22h 15m. The distance between Idaho and Europe is about 5431 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 $391 on Scandinavian Airlines. Other airlines that offer cheap prices include American Airlines from $449 and United Airlines from $459 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$577Average$860FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$579Average$925FlexibilityNo cancel feeOn-time69%
IberiaCheapest$586Average$807FlexibilityNo cancel feeOn-time77%
DeltaCheapest$590Average$1,016FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$591Average$1,002FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$602Average$1,181FlexibilityNo cancel feeOn-time67%
FinnairCheapest$637Average$972FlexibilityNo 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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