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$450+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
4月 5 — 4月 121
土 4/5
土 4/12
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 3月 31, 2025.

Round-trip from

$769
(Mytrip)

One-way from

$450
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$769
From Boise Air Term. Gowen Fld to Spain
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One-way flight from Boise Air Term. Gowen Fld to Spain
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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 March 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 3月 31, 2025.

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.
火 11/410:38 amBOI - BIO
2 stops16h 52mMultiple Airlines
木 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.
月 11/38:45 amBOI - BIO
2 stops24h 35mDelta
木 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.
火 11/42:11 pmBOI - BIO
2 stops19h 54mUnited Airlines
火 11/117:20 amBIO - BOI
2 stops23h 02mUnited Airlines
Deal found 3/30$652
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.
土 11/85:22 pmBOI - BCN
2 stops30h 58mUnited Airlines
月 11/171:55 pmBCN - BOI
2 stops36h 00mUnited Airlines
Deal found 3/30$663
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.
火 10/75:00 amBOI - MAD
2 stops19h 05mUnited Airlines
火 10/2112:45 pmMAD - BOI
2 stops31h 10mUnited Airlines
Deal found 3/30$698
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
火 10/71:41 pmBOI - MAD
1 stop16h 39mMultiple Airlines
火 10/214:00 pmMAD - BOI
1 stop28h 34mMultiple Airlines
Deal found 3/30$707
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
火 10/77:30 amBOI - MAD
1 stop22h 50mAmerican Airlines
火 10/2110:25 amMAD - BOI
2 stops18h 47mAmerican Airlines
Deal found 3/30$714
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.
土 11/83:05 pmBOI - BCN
2 stops17h 55mMultiple Airlines
月 11/1710:55 amBCN - BOI
1 stop19h 48mMultiple Airlines
Deal found 3/30$738
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.
土 11/810:39 amBOI - BIO
2 stops23h 26mLufthansa
金 11/146:50 pmBIO - BOI
2 stops31h 05mLufthansa
Deal found 3/30$761
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
水 10/17:30 amBOI - BCN
1 stop18h 40mFinnair
水 10/812:20 pmBCN - BOI
1 stop16h 52mFinnair
Deal found 3/30$781
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
月 4/287:05 amBOI - MAD
1 stop18h 00mFinnair
月 5/59:35 pmMAD - BOI
2 stops32h 25mFinnair
Deal found 3/30$808
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.
水 4/304:40 pmBOI - MAD
2 stops16h 05mDelta
水 5/710:05 amMAD - BOI
2 stops21h 23mDelta
Deal found 3/30$817

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 3月 31, 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

水 4/30

1:52 pm-10:50 pm

3 stops24h 58m

Barcelona-El Prat

水 5/7

9:55 pm-11:21 am

3 stops45h 26m

$769

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

水 4/30

7:30 am-9:40 pm

2 stops30h 10m

Barcelona-El Prat

水 5/7

12:15 pm-10:52 pm

2 stops42h 37m

$789

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

月 4/28

7:05 am-9:05 am

1 stop18h 00m

Madrid Barajas

月 5/5

9:35 pm-10:00 pm

2 stops32h 25m

$808

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

水 4/30

4:40 pm-4:45 pm

2 stops16h 05m

Madrid Barajas

水 5/7

10:05 am-11:28 pm

2 stops21h 23m

$817

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

金 9/19

2:11 pm-7:50 am

2 stops33h 39m

Madrid Barajas

火 9/30

12:15 pm-1:30 pm

2 stops33h 15m

$832

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

月 4/28

5:00 am-6:40 am

2 stops17h 40m

Madrid Barajas

月 5/5

12:30 pm-6:00 pm

2 stops37h 30m

$838

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

金 9/19

7:30 am-2:20 pm

1 stop22h 50m

Madrid Barajas

火 9/30

11:35 am-11:36 pm

2 stops20h 01m

$859

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

月 4/28

7:00 pm-6:40 am

2 stops27h 40m

Madrid Barajas

月 5/5

12:30 pm-9:59 am

3 stops29h 29m

$872

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

金 5/2

6:30 am-11:25 pm

2 stops32h 55m

Bilbao

金 5/16

6:45 am-9:39 pm

2 stops22h 54m

$883

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

木 9/25

5:00 pm-4:40 pm

2 stops15h 40m

Bilbao

土 10/4

6:50 am-4:49 pm

2 stops17h 59m

$939

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 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 $1,107). 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 3月 31, 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.

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 3月 31, 2025.
Read through reviews of airlines operating flights from Boise to Spain, such as Delta, KLM and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

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
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

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
7,899 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

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
7,899 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

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
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

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 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 $544 on Scandinavian Airlines. Other airlines that offer cheap prices include Delta from $608 and Air Canada from $614 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 - 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, 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 $1,107). 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 Boise 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 Boise to Spain

Discover the top 5 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 3月 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$530Average$939FlexibilityNo cancel feeOn-time69%
DeltaCheapest$570Average$1,186FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$586Average$1,084FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$608Average$1,150FlexibilityNo cancel feeOn-time71%
KLMCheapest$664Average$1,264FlexibilityNo cancel feeOn-time75%
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