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$345+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
Apr 27 — May 41
Mon 4/27
Mon 5/4
1 adult, Economy
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Cheap 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 March 28, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Tue 4/1410:35 am
BOI
-
AGP
2 stops23h 20m
Lufthansa
Wed 4/296:45 pm
AGP
-
BOI
2 stops36h 05m
Lufthansa
Deal found 3/27$511
This Justfly.com deal was found by Cheapflights users on 3/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:35 am
BOI
-
AGP
2 stops23h 20m
Lufthansa
Tue 4/216:45 pm
AGP
-
BOI
2 stops36h 17m
Lufthansa
Deal found 3/23$519
This Justfly.com deal was found by Cheapflights users on 3/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:35 am
BOI
-
AGP
2 stops23h 20m
Lufthansa
Wed 4/221:15 pm
AGP
-
BOI
2 stops40h 07m
Lufthansa
Deal found 3/25$538
This FlightHub deal was found by Cheapflights users on 3/28. 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.
Wed 12/92:43 pm
BOI
-
AGP
2 stops17h 27m
Lufthansa
Wed 12/235:10 pm
AGP
-
BOI
2 stops56h 45m
Lufthansa
Deal found 3/28$565
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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.
Tue 9/292:43 pm
BOI
-
BIO
2 stops24h 22m
Lufthansa
Tue 10/137:15 am
BIO
-
BOI
2 stops18h 40m
Lufthansa
Deal found 3/24$670
This Air France deal was found by Cheapflights users on 3/23. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:43 pm
BOI
-
BIO
2 stops19h 47m
Multiple Airlines
Tue 10/137:10 am
BIO
-
BOI
2 stops19h 23m
Multiple Airlines
Deal found 3/23$673
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Wed 11/182:11 pm
BOI
-
BIO
2 stops19h 54m
United Airlines
Fri 11/276:45 am
BIO
-
BOI
2 stops25h 14m
United Airlines
Deal found 3/23$692
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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.
Wed 8/512:38 pm
BOI
-
BIO
2 stops25h 47m
Lufthansa
Wed 8/197:15 am
BIO
-
BOI
2 stops18h 38m
Lufthansa
Deal found 3/25$698
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Mon 9/288:20 am
BOI
-
BIO
2 stops31h 05m
United Airlines
Mon 10/122:10 pm
BIO
-
BOI
2 stops41h 49m
United Airlines
Deal found 3/23$712
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Fri 12/411:45 am
BOI
-
BIO
2 stops27h 20m
United Airlines
Tue 12/86:45 am
BIO
-
BOI
2 stops25h 14m
United Airlines
Deal found 3/23$742
This United Airlines deal was found by Cheapflights users on 3/27. 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 11/182:11 pm
BOI
-
BIO
2 stops19h 54m
United Airlines
Thu 11/266:45 am
BIO
-
BOI
2 stops24h 20m
United Airlines
Deal found 3/27$743
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Tue 9/2911:45 am
BOI
-
BIO
2 stops27h 20m
United Airlines
Tue 10/136:50 am
BIO
-
BOI
2 stops22h 25m
United Airlines
Deal found 3/26$755

Find flight deals from Boise to Spain

Keep the following information in mind while searching for Boise to Spain flight deals. Data was last updated March 28, 2026.

Round-trip from

$511
(Cheapflightsfares)

One-way from

$354
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$843
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. 25% potential increase in price ($328 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 28, 2026.
Use the filters below to find and compare flights from Boise to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseMálaga

BOI - AGP

BOIAGP

Boise Air Term. Gowen Fld

Tue 4/14

10:35 am-5:55 pm

2 stops23h 20m

Malaga

Wed 4/29

6:45 pm-10:50 pm

2 stops36h 05m

$511

BoiseMálaga

BOI - AGP

BOIAGP

Boise Air Term. Gowen Fld

Tue 4/14

10:35 am-5:55 pm

2 stops23h 20m

Malaga

Tue 4/21

6:45 pm-11:02 pm

2 stops36h 17m

$519

BoiseMálaga

BOI - AGP

BOIAGP

Boise Air Term. Gowen Fld

Tue 4/14

10:35 am-5:55 pm

2 stops23h 20m

Malaga

Wed 4/22

2:55 pm-9:22 pm

2 stops38h 27m

$538

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 8/5

12:38 pm-10:25 pm

2 stops25h 47m

Bilbao

Wed 8/19

7:15 am-5:53 pm

2 stops18h 38m

$698

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 9/13

2:45 pm-5:30 pm

2 stops18h 45m

Bilbao

Fri 10/16

6:45 am-6:33 pm

2 stops19h 48m

$771

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 4/23

12:52 pm-5:30 pm

2 stops20h 38m

Bilbao

Thu 4/30

10:30 am-10:28 pm

2 stops19h 58m

$783

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 8/5

12:38 pm-10:25 pm

2 stops25h 47m

Bilbao

Wed 8/19

6:50 am-9:25 pm

2 stops22h 35m

$786

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 8/9

5:14 pm-8:20 pm

2 stops19h 06m

Barcelona-El Prat

Thu 8/20

7:40 am-10:17 pm

2 stops22h 37m

$800

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 8/10

6:44 am-10:10 am

1 stop19h 26m

Barcelona-El Prat

Fri 8/21

3:35 pm-11:26 am

2 stops27h 51m

$808

BoiseValencia

BOI - VLC

BOIVLC

Boise Air Term. Gowen Fld

Thu 5/7

8:56 am-4:15 pm

2 stops23h 19m

Valencia

Thu 5/14

6:35 am-12:04 am

2 stops25h 29m

$830

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, February is the cheapest month in which you can book a flight from Boise to Spain (average of $476). Flying from Boise to Spain 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.

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 March 28, 2026.
Read reviews from past customers who have flown Delta,KLM, andUnited Airlines 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
7.9
Good
8,355 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,355 reviews
Delta
7.9
Good
8,355 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.8
Good
1,477 reviews
Delta
7.9
Good
8,355 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,499 reviews
Delta
7.9
Good
8,355 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,520 reviews
Delta
7.9
Good
8,355 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Iberia
7.0
Good
3,157 reviews
Delta
7.9
Good
8,355 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Boise to Spain?

    A quick flight from Boise to Spain can take about 18h 45m. Lufthansa provides one of the quickest options available for as low as $771. The distance between Boise and Spain is about 5157 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 - Madrid Barajas, Boise Air Term. Gowen Fld - Barcelona-El Prat 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, February is the cheapest month in which you can book a flight from Boise to Spain (average of $476). Flying from Boise to Spain 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

Browse thousands of different options on Cheapflights for your next trip

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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 March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$483Average$669FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$489Average$948FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$493Average$724FlexibilityNo cancel feeOn-time69%
DeltaCheapest$529Average$933FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$651Average$857FlexibilityNo cancel feeOn-time67%
KLMCheapest$1,145Average$1,317FlexibilityNo cancel feeOn-time75%

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