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$356+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPH
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap 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 July 26, 2026.

This Travelocity deal was found by Cheapflights users on 7/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/182:06 pm
BOI
-
KEF
1 stop13h 19m
Alaska Airlines
Thu 11/55:00 pm
KEF
-
BOI
1 stop12h 20m
Alaska Airlines
Deal found 7/21$381
This Travelocity deal was found by Cheapflights users on 7/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:15 pm
BOI
-
KEF
1 stop14h 10m
Alaska Airlines
Tue 10/67:45 pm
KEF
-
BOI
1 stop20h 11m
Alaska Airlines
Deal found 7/21$456
This Priceline deal was found by Cheapflights users on 7/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:17 pm
BOI
-
KEF
1 stop10h 43m
Alaska Airlines
Fri 9/114:50 pm
KEF
-
BOI
1 stop11h 48m
Alaska Airlines
Deal found 7/26$564
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:00 am
BOI
-
KEF
1 stop17h 00m
Alaska Airlines
Tue 9/810:40 am
KEF
-
BOI
1 stop19h 04m
Alaska Airlines
Deal found 7/22$649
This CheapOair deal was found by Cheapflights users on 7/22. 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.
Tue 11/245:00 am
BOI
-
DUB
2 stops43h 10m
Air Canada
Thu 12/109:00 am
DUB
-
BOI
2 stops43h 16m
Air Canada
Deal found 7/22$731
This United Airlines deal was found by Cheapflights users on 7/25. 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 11/25:00 am
BOI
-
MAD
2 stops19h 00m
United Airlines
Tue 11/101:25 pm
MAD
-
BOI
2 stops30h 05m
United Airlines
Deal found 7/25$738
This United Airlines deal was found by Cheapflights users on 7/21. 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 11/26:15 am
BOI
-
LHR
1 stop22h 00m
United Airlines
Wed 11/46:50 am
LHR
-
BOI
2 stops23h 16m
United Airlines
Deal found 7/21$746
This Expedia deal was found by Cheapflights users on 7/22. 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.
Wed 10/211:38 pm
GEG
-
FCO
2 stops19h 12m
Lufthansa
Wed 11/186:35 pm
FCO
-
GEG
2 stops35h 30m
Lufthansa
Deal found 7/22$747
This Priceline deal was found by Cheapflights users on 7/22. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:48 pm
BOI
-
KEF
1 stop31h 12m
Alaska Airlines
Mon 8/3112:45 pm
KEF
-
BOI
1 stop16h 59m
Alaska Airlines
Deal found 7/22$748
This Expedia deal was found by Cheapflights users on 7/21. 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.
Tue 11/177:00 am
BOI
-
DUB
1 stop17h 15m
Iberia
Tue 11/241:00 pm
DUB
-
BOI
1 stop16h 46m
Iberia
Deal found 7/21$750
This Air France deal was found by Cheapflights users on 7/21. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:40 am
BOI
-
DUB
2 stops20h 05m
Multiple Airlines
Tue 11/245:45 am
DUB
-
BOI
2 stops18h 04m
Multiple Airlines
Deal found 7/21$751
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:27 pm
BOI
-
MAD
2 stops16h 08m
American Airlines
Mon 11/912:55 am
MAD
-
BOI
1 stop20h 50m
American Airlines
Deal found 7/26$752

Find flight deals from Idaho to Europe

Keep the following information in mind while searching for Idaho to Europe flight deals. Data was last updated July 26, 2026.

Round-trip from

$381
(Travelocity)

One-way from

$356
(FlightHub)
From Idaho to Europe
Search Deals
One-way flight from Idaho to Europe
Search Deals

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 July 26, 2026.
Use the filters below to find and compare flights from Idaho to Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Mon 8/24

10:00 am-9:00 am

1 stop17h 00m

Reykjavik Keflavik Intl

Tue 9/8

10:40 am-11:44 pm

1 stop19h 04m

$649

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Mon 11/2

5:00 am-8:00 am

2 stops19h 00m

Madrid Barajas

Tue 11/10

1:25 pm-11:30 am

2 stops30h 05m

$738

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Tue 10/6

12:26 pm-11:10 am

2 stops15h 44m

Dublin

Tue 10/20

9:50 am-11:28 am

2 stops32h 38m

$763

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Mon 1/11

5:00 am-9:10 am

2 stops20h 10m

London Heathrow

Wed 1/13

9:00 am-11:38 pm

2 stops22h 38m

$765

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Wed 11/18

6:30 am-10:00 am

2 stops20h 30m

Reykjavik Keflavik Intl

Thu 11/26

12:00 pm-6:03 pm

2 stops37h 03m

$772

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Mon 10/19

10:30 am-9:45 am

2 stops16h 15m

Dublin

Sun 11/1

9:00 am-9:30 pm

2 stops43h 30m

$778

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Tue 8/25

12:24 pm-9:45 am

1 stop14h 21m

Dublin

Tue 9/8

9:20 am-3:31 pm

2 stops37h 11m

$783

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Tue 8/18

5:44 pm-9:45 am

2 stops33h 01m

Dublin

Tue 8/25

9:50 am-10:40 pm

2 stops43h 50m

$787

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Sun 10/18

3:00 pm-4:40 pm

2 stops18h 40m

Dublin

Tue 10/27

9:55 am-11:59 pm

1 stop20h 04m

$789

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Sun 10/18

3:00 pm-4:40 pm

2 stops18h 40m

Dublin

Tue 10/27

6:00 am-6:33 pm

2 stops18h 33m

$793

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $756). Flying from Idaho to Europe in June is currently the most expensive (average of $1,315). 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.

How far ahead should I book a flight from Idaho to Europe?

To ensure you get the cheapest price possible for a flight from Idaho to Europe, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $649, Alaska Airlines can have you in Europe from Idaho in 17h. The distance between Idaho and Europe is about 3672 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 $276 on American Airlines. Other airlines that offer cheap prices include United Airlines from $280 and Iberia from $360 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 $756). Flying from Idaho to Europe in June is currently the most expensive (average of $1,315). 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 7 airlines flying from Idaho to Europe

Discover the top 7 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 July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$467Average$891FlexibilityNo cancel feeOn-time69%
IberiaCheapest$483Average$939FlexibilityNo cancel feeOn-time77%
KLMCheapest$510Average$943FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$541Average$998FlexibilityNo cancel feeOn-time71%
DeltaCheapest$546Average$969FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$587Average$795FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$856Average$869FlexibilityNo cancel feeOn-time67%

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