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$480+ Cheap flights from Boise (BOI) to Barcelona

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Boise to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2025.

Round-trip from

$600
(Justfly.com)

One-way from

$480
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$898
From Boise Air Term. Gowen Fld to Barcelona
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One-way flight from Boise Air Term. Gowen Fld to Barcelona
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Highest demand for flights based on searches. 24% potential increase in price ($332 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($57 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 Boise to Barcelona

Cheapest flights from Boise to Barcelona
Explore the most affordable flight options available from Boise to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Justfly.com deal was found by Cheapflights users on 4/23. 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.
Sun 10/1210:45 amBOI - BCN
2 stops37h 05mAir Canada
Wed 10/2212:10 pmBCN - BOI
2 stops41h 22mAir Canada
Deal found 4/23$600
This United Airlines deal was found by Cheapflights users on 4/23. 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 10/12:45 pmBOI - BCN
1 stop15h 15mUnited Airlines
Tue 10/71:15 pmBCN - BOI
2 stops40h 17mUnited Airlines
Deal found 4/23$606
This Air Canada deal was found by Cheapflights users on 4/23. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:00 amBOI - BCN
3 stops20h 20mMultiple Airlines
Tue 10/712:10 pmBCN - BOI
2 stops17h 22mMultiple Airlines
Deal found 4/23$771
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:17 pmBOI - BCN
1 stop13h 13mAmerican Airlines
Fri 10/312:20 pmBCN - BOI
1 stop16h 54mAmerican Airlines
Deal found 4/23$817
This KAYAK deal was found by Cheapflights users on 4/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:20 amBOI - BCN
1 stop20h 55mLufthansa
Wed 10/223:15 pmBCN - BOI
1 stop35h 19mLufthansa
Deal found 4/23$833
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/911:59 pmBOI - BCN
2 stops22h 01mDelta
Sun 5/186:20 amBCN - BOI
2 stops18h 22mDelta
Deal found 4/23$888
This Gurufare deal was found by Cheapflights users on 4/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/211:50 pmBOI - BCN
2 stops20h 20mScandinavian Airlines
Mon 5/267:00 pmBCN - BOI
2 stops36h 28mScandinavian Airlines
Deal found 4/23$998
This KLM deal was found by Cheapflights users on 4/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:30 pmBOI - BCN
1 stop25h 10mKLM
Mon 1/125:25 pmBCN - BOI
2 stops31h 28mKLM
Deal found 4/23$1,137
This Iberia deal was found by Cheapflights users on 4/23. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/301:41 pmBOI - BCN
1 stop36h 29mIberia
Sat 12/209:55 amBCN - BOI
2 stops43h 25mIberia
Deal found 4/23$1,204
This Gurufare deal was found by Cheapflights users on 4/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:14 amBOI - BCN
1 stop18h 56mFinnair
Mon 5/2612:20 pmBCN - BOI
1 stop17h 40mFinnair
Deal found 4/23$1,347
This KAYAK deal was found by Cheapflights users on 4/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:15 amBOI - BCN
2 stops32h 00mITA Airways
Tue 5/206:20 amBCN - BOI
2 stops25h 08mITA Airways
Deal found 4/23$1,838

Cheapflights Fare Finder

Customize your flight search to find flights from Boise to Barcelona 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 24, 2025.
Use the filters below to find and compare flights from Boise to Barcelona that are best for you.

Fly from

Boise

Fly to

Barcelona

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/12

10:45 am-7:50 am

2 stops37h 05m

Barcelona-El Prat

Wed 10/22

12:10 pm-9:32 pm

2 stops41h 22m

$600

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 10/1

2:45 pm-2:00 pm

1 stop15h 15m

Barcelona-El Prat

Tue 10/7

1:15 pm-9:32 pm

2 stops40h 17m

$606

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 10/1

5:00 am-9:20 am

3 stops20h 20m

Barcelona-El Prat

Tue 10/7

12:10 pm-9:32 pm

2 stops17h 22m

$771

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 9/12

1:17 pm-10:30 am

1 stop13h 13m

Barcelona-El Prat

Fri 10/3

12:20 pm-9:14 pm

1 stop16h 54m

$817

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/12

8:20 am-1:15 pm

1 stop20h 55m

Barcelona-El Prat

Wed 10/22

3:15 pm-6:34 pm

1 stop35h 19m

$833

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 5/9

11:59 pm-6:00 am

2 stops22h 01m

Barcelona-El Prat

Sun 5/18

6:20 am-4:42 pm

2 stops18h 22m

$888

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 5/21

1:50 pm-6:10 pm

2 stops20h 20m

Barcelona-El Prat

Mon 5/26

7:00 pm-11:28 pm

2 stops36h 28m

$998

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 8/30

1:41 pm-10:10 am

1 stop36h 29m

Barcelona-El Prat

Sat 12/20

9:55 am-9:20 pm

2 stops43h 25m

$1,204

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 5/21

7:14 am-10:10 am

1 stop18h 56m

Barcelona-El Prat

Mon 5/26

12:20 pm-10:00 pm

1 stop17h 40m

$1,347

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 9/17

2:00 pm-6:10 pm

2 stops20h 10m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 12 results
1
2

Best time to book a flight from Boise to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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 Barcelona

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

Currently, January is the cheapest month in which you can book a flight from Boise to Barcelona (average of $523). Flying from Boise to Barcelona in June is currently the most expensive (average of $1,079). 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 BCN?

Find hourly flight availability from Boise to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

A simple way to save on the total cost of your ticket is to fly from Boise to Barcelona in the evening. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the morning.

Rainfall in Barcelona by month

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

In terms of precipitation, rainfall in Barcelona 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 Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

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

If weather is an important factor for your trip to Barcelona, 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 Barcelona

Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated April 24, 2025.
Read reviews from past customers who have flown Delta, Finnair and United Airlines from Boise to Barcelona. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

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
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

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
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

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.
Scandinavian Airlines
7.3
Good
1,344 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

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 Barcelona. 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 Barcelona?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Barcelona. On average, Air Term. Gowen Fld has 0 outbound flights to Barcelona per day from 3 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • What are the cheapest airlines flying from Boise to Barcelona round-trip?

    Flying on Air Canada is currently your cheapest option to Barcelona, with prices starting at $600. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $606 and $817, respectively. Air Canada is currently priced 40% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $480. However, be on the lookout for offers from American Airlines and Air Canada, as they are both options that can get you from Boise to Barcelona for a low price.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boise to Barcelona (average of $523). Flying from Boise to Barcelona in June is currently the most expensive (average of $1,079). 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 Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Barcelona-El Prat flights
Jackson to Barcelona-El Prat flights
Spokane to Barcelona-El Prat flights
Idaho Falls to Barcelona-El Prat flights

Top 3 airlines flying from Boise to Barcelona

Discover the top 3 airlines that operate flights from Boise to Barcelona. 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$570Average$892FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$658Average$998FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$684Average$1,050FlexibilityNo cancel feeOn-time71%

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