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$335+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
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 December 8, 2025.

This Delta deal was found by Cheapflights users on 12/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:35 amBOI - DUB
1 stop19h 10mDelta
Sat 12/139:45 amDUB - BOI
1 stop21h 24mDelta
Deal found 12/6$484
This Cheapflightsfares deal was found by Cheapflights users on 12/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amGEG - FCO
2 stops22h 25mLufthansa
Wed 1/147:05 amFCO - GEG
2 stops21h 11mLufthansa
Deal found 12/7$673
This KLM deal was found by Cheapflights users on 12/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:55 pmBOI - FCO
1 stop36h 35mKLM
Mon 1/128:25 pmFCO - BOI
2 stops27h 52mKLM
Deal found 12/8$698
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/315:05 amGEG - FCO
2 stops18h 25mUnited Airlines
Wed 1/147:05 amFCO - GEG
3 stops23h 17mUnited Airlines
Deal found 12/7$709
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/86:35 amBOI - LIS
2 stops20h 40mUnited Airlines
Tue 12/165:00 amLIS - BOI
2 stops35h 59mUnited Airlines
Deal found 12/7$732
This Delta deal was found by Cheapflights users on 12/7. 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 12/301:00 pmBOI - CDG
2 stops22h 55mDelta
Fri 1/91:15 pmCDG - BOI
1 stop17h 03mDelta
Deal found 12/7$739
This Delta deal was found by Cheapflights users on 12/7. 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.
Mon 12/295:50 amBOI - CDG
2 stops18h 20mDelta
Fri 1/91:15 pmCDG - BOI
1 stop17h 03mDelta
Deal found 12/7$747
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/3112:20 pmBOI - CDG
1 stop13h 35mUnited Airlines
Mon 1/126:15 amCDG - BOI
2 stops23h 37mUnited Airlines
Deal found 12/7$756
This Delta deal was found by Cheapflights users on 12/7. 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.
Fri 12/2611:47 pmBOI - CDG
1 stop22h 23mDelta
Fri 1/91:15 pmCDG - BOI
2 stops31h 45mDelta
Deal found 12/7$758
This Delta deal was found by Cheapflights users on 12/7. 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.
Mon 12/2911:47 pmBOI - FCO
2 stops24h 08mDelta
Tue 1/136:10 amFCO - BOI
2 stops22h 02mDelta
Deal found 12/7$762
This Delta deal was found by Cheapflights users on 12/7. 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 12/301:00 pmBOI - CDG
2 stops18h 20mDelta
Mon 1/122:20 pmCDG - BOI
2 stops33h 57mDelta
Deal found 12/7$769
This Air France deal was found by Cheapflights users on 12/6. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:35 amBOI - LIS
2 stops19h 25mMultiple Airlines
Wed 1/143:30 pmLIS - BOI
2 stops31h 47mMultiple Airlines
Deal found 12/6$776

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 December 8, 2025.

Round-trip from

$462
(Air Canada)

One-way from

$335
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$1,499
From Idaho to Europe
Search Deals
One-way flight from Idaho to Europe
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 8, 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

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Wed 1/14

10:15 am-7:10 am

2 stops37h 55m

Dublin

Wed 1/21

9:00 am-1:35 pm

2 stops35h 35m

$462

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Mon 1/12

2:37 pm-7:10 am

2 stops33h 33m

Dublin

Sun 1/18

9:00 am-10:57 pm

2 stops44h 57m

$462

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 1/11

6:10 am-9:35 am

2 stops19h 25m

Barcelona-El Prat

Sat 1/24

1:35 pm-10:06 am

2 stops28h 31m

$468

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Wed 1/21

12:19 pm-8:10 am

1 stop12h 51m

Dublin

Wed 1/28

9:00 am-7:51 pm

2 stops17h 51m

$470

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Mon 1/12

12:19 pm-8:10 am

1 stop12h 51m

Dublin

Sun 1/18

9:00 am-10:57 pm

2 stops20h 57m

$475

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 1/21

1:58 pm-4:30 pm

2 stops18h 32m

Barcelona-El Prat

Wed 1/28

10:40 am-7:25 pm

1 stop16h 45m

$480

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

4:02 pm-4:30 pm

2 stops16h 28m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$480

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 1/21

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Wed 1/28

10:40 am-7:25 pm

1 stop16h 45m

$484

BoiseDublin

BOI - DUB

BOIDUB

Boise Air Term. Gowen Fld

Fri 2/6

8:15 am-8:10 am

1 stop16h 55m

Dublin

Tue 2/10

10:40 am-10:57 pm

1 stop19h 17m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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, March is the cheapest month in which you can book a flight from Idaho to Europe (average of $480). 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 December 8, 2025.

It’s typically best to fly out from Idaho to Europe in the afternoon. Doing so could potentially save you 3% on the flight price compared to flying at noon, 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 afternoons 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 $485, United Airlines can have you in Europe from Idaho in 18h 54m. 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 $328 on United Airlines. Other airlines that offer cheap prices include Iberia from $360 and Delta from $457 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, March is the cheapest month in which you can book a flight from Idaho to Europe (average of $480). 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

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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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$493Average$901FlexibilityNo cancel feeOn-time69%
IberiaCheapest$513Average$764FlexibilityNo cancel feeOn-time77%
KLMCheapest$577Average$848FlexibilityNo cancel feeOn-time75%
DeltaCheapest$590Average$933FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$602Average$998FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$602Average$1,023FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$604Average$901FlexibilityNo cancel feeOn-time72%
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$642Average$1,085FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$722Average$987FlexibilityNo cancel feeOn-time77%

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