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$256+ Cheap flights from Idaho to Spain

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
dic. 26 — ene. 21
vie. 12/26
vie. 1/2
1 adult, Economy
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Find flight deals from Idaho to Spain

Cheapest flights from Idaho to Spain
Explore the most affordable flight options available from Idaho to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 26, 2025.

This Finnair deal was found by Cheapflights users on 11/25. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/136:44 amBOI - MAD
2 stops22h 21mMultiple Airlines
mar. 12/2312:00 pmMAD - BOI
1 stop18h 56mMultiple Airlines
Deal found 11/25$492
This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/57:00 amJAC - MAD
2 stops18h 15mDelta
mar. 12/910:00 amMAD - JAC
2 stops19h 29mDelta
Deal found 11/25$492
This United Airlines deal was found by Cheapflights users on 11/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/107:00 amJAC - MAD
2 stops17h 00mUnited Airlines
jue. 12/181:35 pmMAD - JAC
2 stops33h 49mUnited Airlines
Deal found 11/26$518
This Iberia deal was found by Cheapflights users on 11/25. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/75:17 amGEG - MAD
1 stop19h 08mIberia
dom. 12/147:10 amMAD - GEG
1 stop22h 47mIberia
Deal found 11/25$551
This Finnair deal was found by Cheapflights users on 11/25. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/75:17 amGEG - MAD
1 stop19h 08mMultiple Airlines
dom. 12/1412:10 pmMAD - GEG
2 stops19h 58mMultiple Airlines
Deal found 11/25$555
This Cheapflightsfares deal was found by Cheapflights users on 11/24. 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.
vie. 11/2810:45 amJAC - MAD
2 stops28h 50mLufthansa
jue. 12/46:00 amMAD - JAC
2 stops22h 37mLufthansa
Deal found 11/24$675
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/51:04 pmJAC - MAD
2 stops19h 51mAmerican Airlines
lun. 12/812:55 amMAD - JAC
1 stop19h 19mAmerican Airlines
Deal found 11/25$684
This United Airlines deal was found by Cheapflights users on 11/23. 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.
vie. 12/57:00 amJAC - MAD
2 stops17h 00mUnited Airlines
mar. 12/96:00 amMAD - JAC
2 stops22h 37mUnited Airlines
Deal found 11/23$687
This American Airlines deal was found by Cheapflights users on 11/26. 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.
vie. 11/2810:00 amJAC - MAD
2 stops20h 50mAmerican Airlines
jue. 12/41:00 pmMAD - JAC
2 stops31h 14mAmerican Airlines
Deal found 11/26$689
This United Airlines deal was found by Cheapflights users on 11/25. 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.
jue. 11/277:00 amJAC - MAD
2 stops17h 00mUnited Airlines
vie. 12/511:05 amMAD - JAC
2 stops17h 32mUnited Airlines
Deal found 11/25$692
This Cheapflightsfares deal was found by Cheapflights users on 11/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/66:44 amBOI - MAD
1 stop15h 31mIberia
vie. 3/612:55 amMAD - BOI
1 stop19h 51mIberia
Deal found 11/25$737
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/61:57 pmBOI - MAD
2 stops18h 53mAmerican Airlines
vie. 3/612:55 amMAD - BOI
1 stop19h 51mAmerican Airlines
Deal found 11/25$750

Cheap flight deals from Idaho to Spain

Keep the following information in mind while searching for Idaho to Spain flight deals. Data was last updated noviembre 26, 2025.

Round-trip from

$447
(Rumbo)

One-way from

$256
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$631
From Idaho to Spain
Search Deals
One-way flight from Idaho to Spain
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 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 Spain 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 noviembre 26, 2025.
Use the filters below to find and compare flights from Idaho to Spain that are best for you.

Fly from

Idaho

Fly to

Spain

Route

Depart

Return

Price

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

dom. 1/11

1:20 pm-8:00 am

2 stops33h 40m

Barcelona-El Prat

sáb. 1/24

10:15 am-10:51 pm

2 stops21h 36m

$447

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

lun. 2/16

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

dom. 2/22

10:40 am-10:36 pm

1 stop19h 56m

$459

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

sáb. 1/17

6:00 am-11:55 am

2 stops20h 55m

Madrid Barajas

lun. 2/2

12:55 am-6:49 pm

1 stop26h 54m

$459

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

vie. 2/20

7:00 am-1:05 pm

2 stops22h 05m

Barcelona-El Prat

vie. 2/27

3:05 pm-12:46 pm

2 stops29h 41m

$463

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

vie. 1/9

6:50 am-8:50 am

2 stops17h 00m

Barcelona-El Prat

vie. 1/16

10:40 am-6:49 pm

1 stop17h 09m

$463

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

sáb. 1/17

6:00 am-6:15 am

1 stop15h 15m

Madrid Barajas

lun. 2/2

12:55 am-6:49 pm

1 stop26h 54m

$463

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

jue. 1/8

5:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

jue. 1/15

1:35 pm-11:39 am

2 stops31h 04m

$465

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

vie. 1/30

11:20 am-11:10 am

2 stops15h 50m

Barcelona-El Prat

mar. 2/3

10:15 am-12:30 pm

2 stops34h 15m

$467

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

vie. 2/6

11:25 am-5:05 pm

2 stops20h 40m

Barcelona-El Prat

mar. 2/10

10:15 am-11:50 pm

2 stops22h 35m

$467

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

vie. 1/23

5:15 am-8:00 am

2 stops17h 45m

Madrid Barajas

mar. 1/27

10:00 am-10:52 pm

2 stops21h 52m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

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

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

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

Currently, February is the cheapest month in which you can book a flight from Idaho to Spain (average of $482). Flying from Idaho to Spain in April is currently the most expensive (average of $790). 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 ES?

Find hourly flight availability from Idaho to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 26, 2025.

When flying from Idaho to Spain, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 11% versus a flight in the afternoon.

Related info for your journey

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

    A quick flight from Idaho to Spain can take about 20h 40m. Virgin Atlantic provides one of the quickest options available for as low as $467. There are 5267 mi between Idaho and Spain. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Iberia. According to our data, you can fly for as low as $336. Users have also found prices from $374 and $418 on Air Canada and United Airlines, respectively.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Idaho to Spain (average of $482). Flying from Idaho to Spain in April is currently the most expensive (average of $790). 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 Spain

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 Spain

Discover the top 7 airlines that operate flights from Idaho to Spain. 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 noviembre 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$493Average$787FlexibilityNo cancel feeOn-time69%
IberiaCheapest$513Average$772FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$602Average$917FlexibilityNo cancel feeOn-time71%
DeltaCheapest$617Average$985FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$651Average$865FlexibilityNo cancel feeOn-time67%
KLMCheapest$1,145Average$1,317FlexibilityNo cancel feeOn-time75%

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