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Barcelona-El Prat

$346+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap 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 February 14, 2026.

This United Airlines deal was found by Cheapflights users on 2/10. 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 4/156:15 am
BOI
-
BCN
2 stops17h 45m
United Airlines
Wed 4/221:15 pm
BCN
-
BOI
2 stops40h 07m
United Airlines
Deal found 2/10$475
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 4/122:37 pm
BOI
-
BCN
2 stops23h 48m
United Airlines
Wed 4/221:15 pm
BCN
-
BOI
2 stops40h 07m
United Airlines
Deal found 2/10$479
This CheapOair deal was found by Cheapflights users on 2/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:00 am
BOI
-
BCN
2 stops44h 20m
Air Canada
Wed 4/221:15 pm
BCN
-
BOI
2 stops40h 07m
Air Canada
Deal found 2/11$481
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 4/126:26 pm
BOI
-
BCN
2 stops17h 54m
American Airlines
Wed 4/2210:45 am
BCN
-
BOI
1 stop20h 09m
American Airlines
Deal found 2/10$483
This Gurufare deal was found by Cheapflights users on 2/10. 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 4/152:18 pm
BOI
-
BCN
1 stop14h 32m
Multiple Airlines
Wed 4/2211:00 am
BCN
-
BOI
1 stop19h 28m
Multiple Airlines
Deal found 2/10$486
This Finnair deal was found by Cheapflights users on 2/12. 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.
Sun 4/121:29 pm
BOI
-
BCN
1 stop13h 26m
Finnair
Wed 4/2210:45 am
BCN
-
BOI
1 stop20h 09m
Finnair
Deal found 2/12$487
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/215:29 pm
BOI
-
BCN
2 stops20h 56m
United Airlines
Mon 5/412:15 pm
BCN
-
BOI
2 stops41h 02m
United Airlines
Deal found 2/10$525
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/156:15 am
BOI
-
BCN
2 stops17h 45m
United Airlines
Mon 4/276:40 am
BCN
-
BOI
2 stops24h 17m
United Airlines
Deal found 2/10$544

Find 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 February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$475
(United Airlines)

One-way from

$346
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$484
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Barcelona-El Prat flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Barcelona-El Prat flights.
Search Deals
From Boise Air Term. Gowen Fld to Barcelona-El Prat
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($280 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 14, 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

Wed 4/15

6:15 am-8:00 am

2 stops17h 45m

Barcelona-El Prat

Wed 4/22

1:15 pm-9:22 pm

2 stops40h 07m

$475

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/12

2:37 pm-10:25 pm

2 stops23h 48m

Barcelona-El Prat

Wed 4/22

1:15 pm-9:22 pm

2 stops40h 07m

$479

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/12

1:29 pm-10:55 am

1 stop13h 26m

Barcelona-El Prat

Wed 4/22

10:45 am-10:54 pm

1 stop20h 09m

$487

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 4/21

5:29 pm-10:25 pm

2 stops20h 56m

Barcelona-El Prat

Mon 5/4

12:15 pm-9:17 pm

2 stops41h 02m

$525

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 4/15

1:53 pm-7:35 am

1 stop33h 42m

Barcelona-El Prat

Mon 4/27

9:20 pm-9:07 pm

2 stops31h 47m

$559

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

10:35 am-3:00 pm

2 stops21h 25m

Barcelona-El Prat

Mon 3/16

6:00 am-11:45 pm

2 stops24h 45m

$603

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 4/21

3:44 pm-5:10 pm

2 stops17h 26m

Barcelona-El Prat

Mon 5/4

6:20 am-11:00 pm

2 stops24h 40m

$622

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 3/10

2:40 pm-11:05 pm

2 stops25h 25m

Barcelona-El Prat

Tue 3/17

7:40 am-9:29 pm

2 stops20h 49m

$665

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 4/21

2:18 pm-12:50 pm

1 stop14h 32m

Barcelona-El Prat

Mon 5/4

11:00 am-10:28 pm

1 stop19h 28m

$687

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 3/10

5:52 am-7:00 am

2 stops18h 08m

Barcelona-El Prat

Tue 3/17

9:45 am-10:25 pm

1 stop19h 40m

$691

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $476). 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 February 14, 2026.
See what other customers who have flown with Delta, United Airlines, and American 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
8,200 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

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
8,200 reviews
Delta
7.9
Good
8,200 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

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
9,295 reviews
Delta
7.9
Good
8,200 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

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
7.2
Good
11,292 reviews
Delta
7.9
Good
8,200 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

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.
Air Canada
7.1
Good
10,717 reviews
Delta
7.9
Good
8,200 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

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
3,115 reviews
Delta
7.9
Good
8,200 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

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 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. 6 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, Finnair, and Iberia fly from Boise to Barcelona-El Prat Airport in about 13h 26m. The time it takes to get you to your destination can typically vary by up to 20h 16m. 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 $483, Iberia will fly you from Boise to Barcelona-El Prat Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $552 and $599, respectively. Iberia is priced at 47% 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 $476). 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
Roses
Calella
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.
Spokane to Barcelona-El Prat flights
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Top 6 airlines flying from Boise to Barcelona-El Prat

Discover the top 6 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 February 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$483Average$685FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$552Average$857FlexibilityNo cancel feeOn-time69%
DeltaCheapest$599Average$892FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$637Average$856FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$641Average$1,033FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$857FlexibilityNo cancel feeOn-time67%

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