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$450+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
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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 April 1, 2025.

Round-trip from

$769
(Mytrip)

One-way from

$450
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$885
From Idaho to Spain
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One-way flight from Idaho to Spain
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($352 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 11/85:22 pmBOI - BCN
2 stops30h 58mUnited Airlines
Mon 11/171:55 pmBCN - BOI
2 stops40h 27mUnited Airlines
Deal found 4/1$614
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/214:25 pmJAC - BCN
2 stops55h 55mUnited Airlines
Tue 12/212:15 pmBCN - JAC
2 stops40h 47mUnited Airlines
Deal found 4/1$640
This Air France deal was found by Cheapflights users on 3/30. 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 11/410:38 amBOI - BIO
2 stops16h 52mMultiple Airlines
Thu 11/138:30 amBIO - BOI
2 stops22h 13mMultiple Airlines
Deal found 3/30$644
This Delta deal was found by Cheapflights users on 3/30. 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 11/38:45 amBOI - BIO
2 stops24h 35mDelta
Thu 11/136:50 amBIO - BOI
2 stops25h 09mDelta
Deal found 3/30$649
This United Airlines deal was found by Cheapflights users on 3/30. 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 11/42:11 pmBOI - BIO
2 stops19h 54mUnited Airlines
Fri 11/147:20 amBIO - BOI
2 stops23h 02mUnited Airlines
Deal found 3/30$652
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:05 pmBOI - AGP
2 stops43h 40mScandinavian Airlines
Sun 11/168:15 pmAGP - BOI
2 stops35h 05mScandinavian Airlines
Deal found 4/1$674
This Finnair deal was found by Cheapflights users on 4/1. 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.
Sun 10/127:30 amBOI - BCN
2 stops21h 50mMultiple Airlines
Wed 10/223:40 pmBCN - BOI
2 stops28h 54mMultiple Airlines
Deal found 4/1$676
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 10/212:07 pmJAC - MAD
1 stop16h 13mAmerican Airlines
Sat 11/112:40 pmMAD - JAC
2 stops31h 28mAmerican Airlines
Deal found 3/31$749
This Lufthansa deal was found by Cheapflights users on 3/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:39 amBOI - BIO
2 stops23h 26mLufthansa
Fri 11/146:50 pmBIO - BOI
2 stops31h 05mLufthansa
Deal found 3/30$761
This United Airlines deal was found by Cheapflights users on 3/31. 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 10/217:00 amJAC - MAD
2 stops18h 00mUnited Airlines
Sat 11/16:05 amMAD - JAC
2 stops21h 57mUnited Airlines
Deal found 3/31$766
This Finnair deal was found by Cheapflights users on 3/31. 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.
Wed 10/17:30 amBOI - BCN
1 stop18h 40mFinnair
Wed 10/812:20 pmBCN - BOI
1 stop16h 52mFinnair
Deal found 3/31$781
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Sat 11/82:43 pmBOI - BCN
3 stops35h 07mAir Canada
Mon 11/1712:15 pmBCN - BOI
3 stops31h 47mAir Canada
Deal found 4/1$786

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 April 1, 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

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 4/30

1:52 pm-10:50 pm

3 stops24h 58m

Barcelona-El Prat

Wed 5/7

9:55 pm-11:21 am

3 stops45h 26m

$769

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 4/30

7:30 am-9:40 pm

2 stops30h 10m

Barcelona-El Prat

Wed 5/7

12:15 pm-10:52 pm

2 stops42h 37m

$789

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 4/30

4:40 pm-4:45 pm

2 stops16h 05m

Madrid Barajas

Wed 5/7

12:40 pm-12:23 am

2 stops19h 43m

$817

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Fri 9/19

3:05 pm-5:45 pm

2 stops42h 40m

Madrid Barajas

Tue 9/30

12:55 pm-11:20 pm

2 stops42h 25m

$822

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Fri 9/19

2:11 pm-7:50 am

2 stops33h 39m

Madrid Barajas

Tue 9/30

12:15 pm-1:30 pm

2 stops33h 15m

$832

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Fri 9/19

1:41 pm-2:20 pm

1 stop16h 39m

Madrid Barajas

Tue 9/30

11:35 am-11:36 pm

2 stops20h 01m

$859

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 4/17

6:15 am-4:40 pm

2 stops26h 25m

Bilbao

Mon 4/21

12:00 pm-12:03 am

2 stops44h 03m

$871

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 5/1

2:20 pm-5:10 pm

2 stops18h 50m

Barcelona-El Prat

Wed 5/21

9:00 am-12:12 am

2 stops23h 12m

$873

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Thu 5/15

1:40 pm-9:40 pm

2 stops23h 00m

Barcelona-El Prat

Thu 5/22

12:15 pm-11:14 pm

2 stops43h 59m

$889

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 5/1

3:30 pm-4:25 pm

2 stops16h 55m

Barcelona-El Prat

Tue 5/20

6:20 am-7:09 pm

2 stops20h 49m

$893

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 43 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, November is the cheapest month in which you can book a flight from Idaho to Spain (average of $543). Flying from Idaho to Spain in June is currently the most expensive (average of $1,101). 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 April 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Spain as you normally would.

Rainfall in Spain by month

Plan your trip to Spain by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Spain ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Spain when rainfall is around 0.8 in.

Temperature in Spain by month

Plan your trip to Spain by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Spain, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Spain

Get insights into the airlines that provide service to Spain. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Spain. Reviews last updated April 1, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Idaho to Spain by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,615 reviews
Delta
8.0
Very good
7,898 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $608. Users have also found prices from $608 and $614 on Finnair and Air Canada, 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, November is the cheapest month in which you can book a flight from Idaho to Spain (average of $543). Flying from Idaho to Spain in June is currently the most expensive (average of $1,101). 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 Spain

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Idaho to Spain

Discover the top 5 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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$530Average$939FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$549Average$1,145FlexibilityNo cancel feeOn-time71%
DeltaCheapest$570Average$1,186FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$586Average$1,084FlexibilityNo cancel feeOn-time77%
KLMCheapest$664Average$1,264FlexibilityNo cancel feeOn-time75%

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