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$327+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPH
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This KLM deal was found by Cheapflights users on 11/5. 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.
Tue 11/186:05 amGEG - DUB
1 stop17h 40mKLM
Tue 11/259:45 amDUB - GEG
1 stop18h 18mKLM
Deal found 11/5$433
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:25 amGEG - DUB
2 stops22h 20mDelta
Wed 12/1010:45 amDUB - GEG
2 stops20h 04mDelta
Deal found 11/4$457
This KLM deal was found by Cheapflights users on 11/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:05 amGEG - DUB
1 stop17h 40mKLM
Thu 11/209:45 amDUB - GEG
1 stop18h 18mKLM
Deal found 11/6$458
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/55:25 amGEG - DUB
2 stops20h 55mUnited Airlines
Fri 12/129:00 amDUB - GEG
2 stops41h 44mUnited Airlines
Deal found 11/5$460
This Air Canada deal was found by Cheapflights users on 11/5. 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 12/55:25 amGEG - DUB
3 stops17h 45mMultiple Airlines
Fri 12/129:00 amDUB - GEG
2 stops35h 45mMultiple Airlines
Deal found 11/5$466
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:20 amBOI - MAD
2 stops18h 40mDelta
Thu 12/1110:00 amMAD - BOI
2 stops22h 42mDelta
Deal found 11/4$468
This Delta deal was found by Cheapflights users on 11/5. 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.
Sun 11/95:35 amBOI - BCN
2 stops18h 25mDelta
Mon 11/2410:15 amBCN - BOI
2 stops22h 20mDelta
Deal found 11/5$475
This Delta deal was found by Cheapflights users on 11/5. 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 11/1811:42 amBOI - MAD
2 stops15h 48mDelta
Tue 12/96:00 amMAD - BOI
2 stops26h 09mDelta
Deal found 11/5$480
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Thu 12/41:50 pmBOI - FCO
2 stops35h 35mUnited Airlines
Tue 12/91:10 pmFCO - BOI
2 stops40h 15mUnited Airlines
Deal found 11/6$489
This Finnair deal was found by Cheapflights users on 11/5. 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 stops17h 50mMultiple Airlines
Mon 12/812:55 amMAD - BOI
1 stop19h 32mMultiple Airlines
Deal found 11/5$492
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:40 amBOI - FCO
2 stops39h 45mMultiple Airlines
Tue 12/97:00 amFCO - BOI
2 stops20h 43mMultiple Airlines
Deal found 11/5$495
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 12/212:16 pmBOI - FCO
1 stop35h 29mUnited Airlines
Tue 12/91:10 pmFCO - BOI
2 stops55h 07mUnited Airlines
Deal found 11/4$500

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 November 6, 2025.

Round-trip from

$433
(KLM)

One-way from

$327
(Travelocity)

Popular in

December

Cheapest in

October

Average price

$1,294
From Idaho to Europe
Search Deals
One-way flight from Idaho to Europe
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 November 6, 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

SpokaneDublin

GEG - DUB

GEGDUB

Spokane

Tue 11/18

6:05 am-7:45 am

1 stop17h 40m

Dublin

Tue 11/25

9:45 am-8:03 pm

1 stop18h 18m

$433

SpokaneDublin

GEG - DUB

GEGDUB

Spokane

Wed 12/3

9:25 am-3:45 pm

2 stops22h 20m

Dublin

Wed 12/10

10:45 am-10:49 pm

2 stops20h 04m

$457

SpokaneDublin

GEG - DUB

GEGDUB

Spokane

Fri 12/5

5:25 am-10:20 am

2 stops20h 55m

Dublin

Fri 12/12

9:00 am-6:44 pm

2 stops41h 44m

$460

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Thu 12/4

5:20 am-8:00 am

2 stops18h 40m

Madrid Barajas

Thu 12/11

10:00 am-12:42 am

2 stops22h 42m

$468

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

6:15 pm-8:00 am

2 stops29h 45m

Barcelona-El Prat

Mon 2/2

10:15 am-9:57 am

2 stops31h 42m

$474

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/9

1:49 pm-8:40 am

1 stop34h 51m

Barcelona-El Prat

Mon 11/24

10:55 am-10:27 pm

1 stop19h 32m

$475

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/9

5:35 am-8:00 am

2 stops18h 25m

Barcelona-El Prat

Mon 11/24

10:15 am-12:35 am

2 stops22h 20m

$475

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 11/18

11:42 am-11:30 am

2 stops15h 48m

Madrid Barajas

Tue 12/9

6:00 am-12:09 am

2 stops26h 09m

$480

SpokaneRome

GEG - FCO

GEGFCO

Spokane

Sun 2/1

5:00 am-9:25 am

2 stops19h 25m

Rome Fiumicino

Sat 2/14

11:15 am-9:52 pm

2 stops43h 37m

$483

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Mon 2/2

10:40 am-7:25 pm

1 stop16h 45m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

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, February is the cheapest month in which you can book a flight from Idaho to Europe (average of $482). Flying from Idaho to Europe in June is currently the most expensive (average of $776). 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 November 6, 2025.

It’s typically best to fly out from Idaho to Europe in the afternoon. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Idaho to Europe?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Europe. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Idaho to Europe flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 $433, KLM can have you in Europe from Idaho in 17h 40m. The distance between Idaho and Europe is about 4379 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 $335 on United Airlines. Other airlines that offer cheap prices include Lufthansa from $373 and Air Canada from $414 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, February is the cheapest month in which you can book a flight from Idaho to Europe (average of $482). Flying from Idaho to Europe in June is currently the most expensive (average of $776). 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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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$493Average$895FlexibilityNo cancel feeOn-time69%
DeltaCheapest$550Average$932FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$577Average$853FlexibilityNo cancel feeOn-time75%
IberiaCheapest$586Average$801FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$602Average$1,003FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$602Average$1,019FlexibilityNo cancel feeOn-time67%
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$642Average$1,003FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$695Average$881FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$722Average$987FlexibilityNo cancel feeOn-time77%

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