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$428+ Cheap flights from Spain to Idaho

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — BOI
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheap flight deals from Spain to Idaho

Keep the following information in mind while searching for Spain to Idaho flight deals. Data was last updated August 2, 2025.

Round-trip from

$629
(Condor)

One-way from

$428
(Kiwi.com)
From Spain to Idaho
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One-way flight from Spain to Idaho
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Find flight deals from Spain to Idaho

Cheapest flights from Spain to Idaho
Explore the most affordable flight options available from Spain to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This Condor deal was found by Cheapflights users on 8/1. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:05 amMAD - GEG
2 stops22h 00mMultiple Airlines
Mon 9/221:40 pmGEG - MAD
2 stops23h 15mMultiple Airlines
Deal found 8/1$629
This Scandinavian Airlines deal was found by Cheapflights users on 7/31. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:30 pmAGP - BOI
2 stops36h 34mScandinavian Airlines
Mon 11/173:05 pmBOI - AGP
2 stops42h 35mScandinavian Airlines
Deal found 7/31$705
This Scandinavian Airlines deal was found by Cheapflights users on 7/31. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:10 pmBCN - BOI
2 stops35h 54mScandinavian Airlines
Mon 11/173:05 pmBOI - BCN
2 stops43h 15mScandinavian Airlines
Deal found 7/31$847
This lol.travel deal was found by Cheapflights users on 7/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:45 amBIO - BOI
2 stops22h 30mUnited Airlines
Sat 9/278:20 amBOI - BIO
2 stops26h 00mUnited Airlines
Deal found 7/31$871
This KLM deal was found by Cheapflights users on 8/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1512:00 pmBIO - BOI
2 stops19h 59mMultiple Airlines
Mon 9/225:25 amBOI - BIO
2 stops21h 00mMultiple Airlines
Deal found 8/1$907
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 11/139:55 amBCN - BOI
2 stops20h 50mUnited Airlines
Mon 11/178:17 amBOI - BCN
1 stop20h 48mUnited Airlines
Deal found 7/31$923
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 11/139:55 amBCN - IDA
2 stops20h 57mUnited Airlines
Mon 11/174:15 pmIDA - BCN
2 stops32h 05mUnited Airlines
Deal found 7/31$923
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 12/56:50 amBCN - GEG
2 stops23h 09mUnited Airlines
Mon 12/84:10 pmGEG - BCN
2 stops31h 50mUnited Airlines
Deal found 7/31$923
This Iberia deal was found by Cheapflights users on 7/31. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:55 amMAD - GEG
1 stop28h 49mIberia
Mon 12/85:48 amGEG - MAD
2 stops23h 27mIberia
Deal found 7/31$924
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 11/1312:55 pmVLC - BOI
2 stops32h 49mUnited Airlines
Mon 11/1712:35 pmBOI - VLC
2 stops39h 30mUnited Airlines
Deal found 7/30$926
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amVLC - BOI
2 stops24h 07mDelta
Mon 11/178:45 amBOI - VLC
2 stops19h 15mDelta
Deal found 7/31$930
This Delta deal was found by Cheapflights users on 7/30. 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.
Sun 9/1410:20 amMAD - GEG
2 stops22h 43mDelta
Sun 9/2110:58 pmGEG - MAD
1 stop25h 37mDelta
Deal found 7/30$930

Cheapflights Fare Finder

 
Customize your flight search to find flights from Spain to Idaho 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 August 2, 2025.
Use the filters below to find and compare flights from Spain to Idaho that are best for you.

Fly from

Spain

Fly to

Idaho

Route

Depart

Return

Price

MadridSpokane

MAD - GEG

MADGEG

Madrid Barajas

Mon 9/15

7:05 am-8:05 pm

2 stops22h 00m

Spokane

Mon 9/22

1:40 pm-9:55 pm

2 stops23h 15m

$629

MálagaBoise

AGP - BOI

AGPBOI

Malaga

Thu 11/13

6:30 pm-11:04 pm

2 stops36h 34m

Boise Air Term. Gowen Fld

Mon 11/17

3:05 pm-5:40 pm

2 stops42h 35m

$705

BarcelonaBoise

BCN - BOI

BCNBOI

Barcelona-El Prat

Thu 11/13

7:10 pm-11:04 pm

2 stops35h 54m

Boise Air Term. Gowen Fld

Mon 11/17

3:05 pm-6:20 pm

2 stops43h 15m

$847

BilbaoBoise

BIO - BOI

BIOBOI

Bilbao

Fri 9/5

6:45 am-9:15 pm

2 stops22h 30m

Boise Air Term. Gowen Fld

Sat 9/27

8:20 am-6:20 pm

2 stops26h 00m

$871

BilbaoBoise

BIO - BOI

BIOBOI

Bilbao

Mon 9/15

12:00 pm-11:59 pm

2 stops19h 59m

Boise Air Term. Gowen Fld

Mon 9/22

5:25 am-10:25 am

2 stops21h 00m

$907

BarcelonaBoise

BCN - BOI

BCNBOI

Barcelona-El Prat

Thu 11/13

9:55 am-10:45 pm

2 stops20h 50m

Boise Air Term. Gowen Fld

Mon 11/17

8:17 am-1:05 pm

1 stop20h 48m

$923

BarcelonaSpokane

BCN - GEG

BCNGEG

Barcelona-El Prat

Fri 12/5

6:50 am-8:59 pm

2 stops23h 09m

Spokane

Mon 12/8

4:10 pm-9:00 am

2 stops31h 50m

$923

MadridSpokane

MAD - GEG

MADGEG

Madrid Barajas

Wed 12/3

12:55 am-8:44 pm

1 stop28h 49m

Spokane

Mon 12/8

5:48 am-2:15 pm

2 stops23h 27m

$924

ValenciaBoise

VLC - BOI

VLCBOI

Valencia

Thu 11/13

12:55 pm-1:44 pm

2 stops32h 49m

Boise Air Term. Gowen Fld

Mon 11/17

12:35 pm-12:05 pm

2 stops39h 30m

$926

ValenciaBoise

VLC - BOI

VLCBOI

Valencia

Thu 11/13

6:00 am-10:07 pm

2 stops24h 07m

Boise Air Term. Gowen Fld

Mon 11/17

8:45 am-12:00 pm

2 stops19h 15m

$930

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 47 results
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Best time to book a flight from Spain to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Spain 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 Spain to Idaho
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated August 2, 2025.
Read reviews from past customers who have flown Delta, KLM, and Finnair from Spain to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,384 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,317 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

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

    For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $801. Users have also found prices from $891 and $895 on Delta and KLM, respectively.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Spain to Idaho (average of $314). Flying from Spain to Idaho in June is currently the most expensive (average of $398). 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 Spain to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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