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Barcelona-El Prat

$399+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$438
(Delta)

One-way from

$399
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$631
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 ($266 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 5, 2025.

This Delta deal was found by Cheapflights users on 11/3. 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 12/25:20 amBOI - BCN
2 stops18h 40mDelta
Tue 12/910:15 amBCN - BOI
2 stops32h 49mDelta
Deal found 11/3$438
This Delta deal was found by Cheapflights users on 11/5. 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.
Sun 11/95:35 amBOI - BCN
2 stops18h 25mDelta
Mon 11/2410:15 amBCN - BOI
2 stops22h 20mDelta
Deal found 11/5$475
This Finnair deal was found by Cheapflights users on 11/4. 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.
Sat 11/81:22 pmBOI - BCN
2 stops33h 43mMultiple Airlines
Sun 11/1611:00 amBCN - BOI
2 stops33h 35mMultiple Airlines
Deal found 11/4$560
This Air Canada deal was found by Cheapflights users on 11/5. 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.
Sun 11/95:00 amBOI - BCN
2 stops20h 35mMultiple Airlines
Mon 11/241:35 pmBCN - BOI
3 stops30h 04mMultiple Airlines
Deal found 11/5$630
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 11/82:31 pmBOI - BCN
2 stops35h 04mUnited Airlines
Sun 11/161:55 pmBCN - BOI
2 stops60h 14mUnited Airlines
Deal found 11/3$662
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/76:15 amBOI - BCN
2 stops18h 45mUnited Airlines
Sun 11/99:55 amBCN - BOI
2 stops21h 33mUnited Airlines
Deal found 11/4$690
This Air France deal was found by Cheapflights users on 11/5. 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.
Sat 11/81:39 pmBOI - BCN
2 stops17h 21mAir France
Sat 11/156:00 amBCN - BOI
2 stops18h 05mAir France
Deal found 11/5$691
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/196:15 amBOI - BCN
2 stops22h 55mUnited Airlines
Thu 11/2711:00 amBCN - BOI
2 stops34h 44mUnited Airlines
Deal found 11/5$693
This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:00 amBOI - BCN
2 stops31h 50mMultiple Airlines
Tue 12/92:00 pmBCN - BOI
1 stop31h 13mMultiple Airlines
Deal found 11/3$741

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 November 5, 2025.
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 12/2

5:20 am-8:00 am

2 stops18h 40m

Barcelona-El Prat

Tue 12/9

10:15 am-11:04 am

2 stops32h 49m

$438

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

6:15 pm-8:00 am

2 stops29h 45m

Barcelona-El Prat

Mon 2/2

10:15 am-9:57 am

2 stops31h 42m

$474

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/9

1:49 pm-8:40 am

1 stop34h 51m

Barcelona-El Prat

Mon 11/24

10:55 am-10:27 pm

1 stop19h 32m

$475

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/9

5:35 am-8:00 am

2 stops18h 25m

Barcelona-El Prat

Mon 11/24

10:15 am-12:35 am

2 stops22h 20m

$475

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Mon 2/2

10:40 am-7:25 pm

1 stop16h 45m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Mon 2/2

10:40 am-7:25 pm

1 stop16h 45m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 11/8

1:22 pm-7:05 am

2 stops33h 43m

Barcelona-El Prat

Sun 11/16

11:00 am-12:35 pm

2 stops33h 35m

$560

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 1/14

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Sun 1/25

10:40 am-7:25 pm

1 stop16h 45m

$571

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 11/18

8:17 am-8:20 am

2 stops16h 03m

$399

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 11/8

10:40 am-9:35 am

2 stops38h 55m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 18 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 January is currently the most expensive (average of $1,292). 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-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2025.

A simple way to save on the total cost of your ticket is to fly from Boise to Barcelona-El Prat Airport in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.

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 November 5, 2025.
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
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

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
8,004 reviews
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

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.
Finnair
7.6
Good
1,335 reviews
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

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
9,004 reviews
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

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
7.2
Good
11,042 reviews
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

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.
Air Canada
7.1
Good
10,409 reviews
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

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 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 Delta fly from Boise to Barcelona-El Prat Airport in about 18h 40m. The time it takes to get you to your destination can typically vary by up to . The distance from Boise to Barcelona-El Prat Airport is about 5431 mi.

  • 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 Finnair and American Airlines - these airlines can fly you to your destination from $637 and $641, respectively. United Airlines is priced at 45% 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 January is currently the most expensive (average of $1,292). 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

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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.
Spokane to Barcelona-El Prat flights
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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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$552Average$881FlexibilityNo cancel feeOn-time69%
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$641Average$1,033FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$857FlexibilityNo cancel feeOn-time67%
DeltaCheapest$726Average$935FlexibilityNo cancel feeOn-timeN/A

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