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$319+ Cheap flights from Boise (BOI) 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Boise to Spain

Keep the following information in mind while searching for Boise to Spain flight deals. Data was last updated July 30, 2025.

Round-trip from

$566
(Booking.com)

One-way from

$319
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,342
From Boise Air Term. Gowen Fld to Spain
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Spain
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($355 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 July 2025
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Find flight deals from Boise to Spain

Cheapest flights from Boise to Spain
Explore the most affordable flight options available from Boise to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/302:44 pmBOI - BCN
2 stops33h 06mAir Canada
Tue 10/71:15 pmBCN - BOI
2 stops40h 09mAir Canada
Deal found 7/29$566
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 9/211:37 pmBOI - BCN
1 stop36h 33mAmerican Airlines
Tue 10/712:20 pmBCN - BOI
1 stop18h 02mAmerican Airlines
Deal found 7/29$571
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.
Tue 9/1612:27 pmBOI - MAD
2 stops35h 53mUnited Airlines
Tue 9/2312:45 pmMAD - BOI
2 stops41h 56mUnited Airlines
Deal found 7/30$577
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.
Tue 10/79:45 amBOI - BCN
2 stops20h 20mUnited Airlines
Fri 10/2412:10 pmBCN - BOI
2 stops39h 05mUnited Airlines
Deal found 7/30$580
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amBOI - MAD
2 stops41h 20mAir Canada
Tue 9/2312:30 pmMAD - BOI
2 stops41h 51mAir Canada
Deal found 7/30$583
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 9/217:00 amBOI - BCN
1 stop19h 10mMultiple Airlines
Tue 10/712:20 pmBCN - BOI
2 stops18h 55mMultiple Airlines
Deal found 7/29$585
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:00 amBOI - BCN
1 stop19h 10mIberia
Tue 10/712:20 pmBCN - BOI
1 stop18h 02mIberia
Deal found 7/29$595
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:00 amBOI - BIO
2 stops27h 50mIberia
Wed 11/126:45 amBIO - BOI
2 stops23h 42mIberia
Deal found 7/30$604
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.
Wed 10/227:45 amBOI - BIO
2 stops31h 40mUnited Airlines
Tue 11/116:40 amBIO - BOI
2 stops24h 05mUnited Airlines
Deal found 7/30$605
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:00 amBOI - MAD
1 stop23h 25mMultiple Airlines
Wed 12/312:40 pmMAD - BOI
1 stop16h 44mMultiple Airlines
Deal found 7/30$625
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:38 pmBOI - MAD
1 stop35h 27mIberia
Tue 9/2312:40 pmMAD - BOI
1 stop17h 08mIberia
Deal found 7/30$631
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/307:00 amBOI - MAD
2 stops17h 15mAmerican Airlines
Tue 10/74:40 pmMAD - BOI
1 stop28h 06mAmerican Airlines
Deal found 7/29$637

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 July 30, 2025.
Use the filters below to find and compare flights from Boise to Spain that are best for you.

Fly from

Boise

Fly to

Spain

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/30

2:44 pm-7:50 am

2 stops33h 06m

Barcelona-El Prat

Tue 10/7

1:15 pm-9:24 pm

2 stops40h 09m

$566

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 9/21

1:37 pm-10:10 am

1 stop36h 33m

Barcelona-El Prat

Tue 10/7

12:20 pm-10:22 pm

1 stop18h 02m

$571

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 9/16

12:27 pm-8:20 am

2 stops35h 53m

Madrid Barajas

Tue 9/23

12:45 pm-10:41 pm

2 stops41h 56m

$577

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 10/7

9:45 am-2:05 pm

2 stops20h 20m

Barcelona-El Prat

Fri 10/24

12:10 pm-7:15 pm

2 stops39h 05m

$580

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 9/16

7:00 am-8:20 am

2 stops41h 20m

Madrid Barajas

Tue 9/23

12:30 pm-10:21 pm

2 stops41h 51m

$583

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 9/21

7:00 am-10:10 am

1 stop19h 10m

Barcelona-El Prat

Tue 10/7

12:20 pm-11:15 pm

2 stops18h 55m

$585

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/30

7:00 am-10:10 am

1 stop19h 10m

Barcelona-El Prat

Tue 10/7

12:20 pm-10:22 pm

1 stop18h 02m

$595

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 10/22

7:00 am-6:50 pm

2 stops27h 50m

Bilbao

Wed 11/12

6:45 am-10:27 pm

2 stops23h 42m

$604

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 10/22

7:45 am-11:25 pm

2 stops31h 40m

Bilbao

Tue 11/11

6:40 am-10:45 pm

2 stops24h 05m

$605

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 10/15

7:00 am-2:25 pm

1 stop23h 25m

Madrid Barajas

Wed 12/3

12:40 pm-9:24 pm

1 stop16h 44m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 46 results
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Best time to book a flight from Boise to Spain

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

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

Currently, November is the cheapest month in which you can book a flight from Boise to Spain (average of $543). Flying from Boise to Spain in June is currently the most expensive (average of $1,052). 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 BOI to ES?

Find hourly flight availability from Boise 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 July 30, 2025.

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

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 July 30, 2025.
Read reviews from past customers who have flown Delta, Finnair, and Air France from Boise to Spain. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,453 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boise to Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boise to Spain?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Spain. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

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

    One-way options have recently been found by users for as low as $483 on United Airlines. Other airlines that offer cheap prices include Air Canada from $518 and Delta from $518 one-way.

  • What are the most popular routes from Boise to Spain?

    When deciding which route to take from Boise to Spain consider Boise Air Term. Gowen Fld - Barcelona-El Prat, Boise Air Term. Gowen Fld - Madrid Barajas or Boise Air Term. Gowen Fld - Bilbao as they are the most popular.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Boise to Spain (average of $543). Flying from Boise to Spain in June is currently the most expensive (average of $1,052). 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 Boise to Spain

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Boise to Spain

Discover the top 6 airlines that operate flights from Boise 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$530Average$800FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$556Average$983FlexibilityNo cancel feeOn-time71%
IberiaCheapest$564Average$781FlexibilityNo cancel feeOn-time77%
DeltaCheapest$568Average$1,164FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$637Average$972FlexibilityNo cancel feeOn-time76%
KLMCheapest$664Average$1,317FlexibilityNo cancel feeOn-time75%

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