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Barcelona-El Prat

$310+ Cheap flights from Boise (BOI) to Barcelona-El Prat (BCN)

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from Boise to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Barcelona-El Prat (BCN). 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$424
(United Airlines)

One-way from

$310
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,292
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Barcelona-El Prat flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Barcelona-El Prat flights.
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From Boise Air Term. Gowen Fld to Barcelona-El Prat
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One-way flight from Boise Air Term. Gowen Fld to Barcelona-El Prat
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Highest demand for flights based on searches. 20% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Boise to Barcelona-El Prat

Cheapest flights from Boise to Barcelona-El Prat
Explore the most affordable flight options available from Boise to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/7. 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 2/310:48 amBOI - BCN
2 stops38h 47mUnited Airlines
Tue 2/101:35 pmBCN - BOI
2 stops38h 16mUnited Airlines
Deal found 1/7$424
This American Airlines deal was found by Cheapflights users on 1/7. 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 2/31:58 pmBOI - BCN
2 stops16h 47mAmerican Airlines
Tue 2/1010:40 amBCN - BOI
1 stop16h 45mAmerican Airlines
Deal found 1/7$432
This Finnair deal was found by Cheapflights users on 1/7. 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.
Tue 2/37:20 amBOI - BCN
1 stop17h 30mFinnair
Wed 2/1810:40 amBCN - BOI
1 stop19h 42mFinnair
Deal found 1/7$435
This American Airlines deal was found by Cheapflights users on 1/7. 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 2/31:58 pmBOI - BCN
2 stops19h 22mAmerican Airlines
Wed 2/1812:30 pmBCN - BOI
2 stops19h 08mAmerican Airlines
Deal found 1/7$436
This Delta deal was found by Cheapflights users on 1/7. 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.
Tue 2/35:45 amBOI - BCN
2 stops18h 55mDelta
Wed 2/1110:55 amBCN - BOI
2 stops34h 16mDelta
Deal found 1/7$440
This Finnair deal was found by Cheapflights users on 1/7. 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 2/117:20 amBOI - BCN
2 stops28h 35mFinnair
Wed 2/1810:40 amBCN - BOI
1 stop19h 42mFinnair
Deal found 1/7$443
This Delta deal was found by Cheapflights users on 1/7. 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.
Wed 2/45:40 amBOI - BCN
2 stops18h 20mDelta
Wed 2/1110:55 amBCN - BOI
1 stop33h 33mDelta
Deal found 1/7$445
This Iberia deal was found by Cheapflights users on 1/7. 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 2/187:00 amBOI - BCN
1 stop17h 50mIberia
Wed 3/49:45 amBCN - BOI
2 stops20h 37mIberia
Deal found 1/7$451
This Delta deal was found by Cheapflights users on 1/7. 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.
Wed 2/187:30 amBOI - BCN
2 stops25h 35mDelta
Wed 3/410:15 amBCN - BOI
2 stops31h 35mDelta
Deal found 1/7$459
This Finnair deal was found by Cheapflights users on 1/7. 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.
Fri 2/207:00 amBOI - BCN
1 stop17h 50mFinnair
Fri 2/2710:40 amBCN - BOI
1 stop19h 42mFinnair
Deal found 1/7$460
This Delta deal was found by Cheapflights users on 1/8. 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 2/205:50 amBOI - BCN
2 stops18h 10mDelta
Fri 2/2710:55 amBCN - BOI
2 stops30h 55mDelta
Deal found 1/8$465
This United Airlines deal was found by Cheapflights users on 1/6. 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 3/58:39 amBOI - BCN
2 stops40h 56mUnited Airlines
Thu 3/1212:35 pmBCN - BOI
2 stops28h 31mUnited Airlines
Deal found 1/6$467

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Barcelona-El Prat 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 January 8, 2026.
Use the filters below to find and compare flights from Boise to Barcelona-El Prat Airport that are best for you.

Fly from

Boise

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 2/3

10:48 am-9:35 am

2 stops38h 47m

Barcelona-El Prat

Tue 2/10

1:35 pm-7:51 pm

2 stops38h 16m

$424

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 2/3

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Wed 2/11

10:40 am-9:18 pm

1 stop18h 38m

$435

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 2/3

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Tue 2/10

10:40 am-7:25 pm

1 stop16h 45m

$435

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 2/3

5:45 am-8:40 am

2 stops18h 55m

Barcelona-El Prat

Wed 2/11

10:55 am-1:11 pm

2 stops34h 16m

$440

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

10:40 am-10:22 pm

1 stop19h 42m

$460

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

10:40 am-10:22 pm

1 stop19h 42m

$460

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

10:40 am-10:22 pm

1 stop19h 42m

$460

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

3:05 pm-12:51 pm

2 stops29h 46m

$465

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

5:50 am-8:00 am

2 stops18h 10m

Barcelona-El Prat

Fri 2/27

10:55 am-9:50 am

2 stops30h 55m

$465

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

11:30 pm-7:00 am

2 stops24h 30m

Barcelona-El Prat

Mon 3/16

9:15 am-9:55 am

2 stops31h 40m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 17 results
1
2

Compare providers for flights from Boise to Barcelona-El Prat

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Barcelona-El Prat in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Barcelona-El Prat Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Barcelona-El Prat Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Barcelona-El Prat Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat 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-El Prat Airport

What is the cheapest month to book a flight from Boise to Barcelona-El Prat Airport?

Currently, February is the cheapest month in which you can book a flight from Boise to Barcelona-El Prat Airport (average of $482). Flying from Boise to Barcelona-El Prat Airport in December is currently the most expensive (average of $1,165). 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 Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. 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-El Prat. Reviews last updated January 8, 2026.
See what other customers who have flown with Delta, Finnair, and United Airlines from Boise to Barcelona-El Prat Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,025 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

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
8,025 reviews
Delta
7.9
Good
8,025 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

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.
Finnair
7.6
Good
1,346 reviews
Delta
7.9
Good
8,025 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

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
9,138 reviews
Delta
7.9
Good
8,025 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

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
7.2
Good
11,094 reviews
Delta
7.9
Good
8,025 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

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.
Air Canada
7.1
Good
10,602 reviews
Delta
7.9
Good
8,025 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

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 Barcelona-El Prat. 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-El Prat?

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly out of when you book flights from Boise to Barcelona-El Prat. 5 airlines have flights from Air Term. Gowen Fld to Barcelona-El Prat on a regular basis. Booking flights from Boise Air Term. Gowen Fld to Barcelona-El Prat should not be difficult; the airport handles an average of 0 outbound flights to Barcelona-El Prat per day.

  • How long is the flight from Boise to Barcelona-El Prat Airport?

    Airlines like United Airlines, Iberia, and Finnair fly from Boise to Barcelona-El Prat Airport in about 17h 30m. The time it takes to get you to your destination can typically vary by up to 21h 17m. The distance from Boise to Barcelona-El Prat Airport is about 5431 mi. This flight may include one or multiple stops.

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

    Currently priced at $552, United Airlines will fly you from Boise to Barcelona-El Prat Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Finnair - these airlines can fly you to your destination from $599 and $637, respectively. United Airlines is priced at 43% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Barcelona-El Prat 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-El Prat Airport?

    Currently, February is the cheapest month in which you can book a flight from Boise to Barcelona-El Prat Airport (average of $482). Flying from Boise to Barcelona-El Prat Airport in December is currently the most expensive (average of $1,165). 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

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Calella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boise to Barcelona-El Prat

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 Barcelona-El Prat

Discover the top 5 airlines that operate flights from Boise to Barcelona-El Prat. 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$552Average$863FlexibilityNo cancel feeOn-time69%
DeltaCheapest$599Average$935FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$637Average$972FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$641Average$1,040FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$865FlexibilityNo cancel feeOn-time67%

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