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Barcelona-El Prat

$357+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Jul 6 — Jul 131
Mon 7/6
Mon 7/13
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 June 6, 2026.

This Finnair deal was found by Cheapflights users on 6/1. 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 10/186:44 am
BOI
-
BCN
2 stops22h 51m
Multiple Airlines
Wed 10/283:05 pm
BCN
-
BOI
2 stops27h 21m
Multiple Airlines
Deal found 6/1$774
This Expedia deal was found by Cheapflights users on 6/1. 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.
Sun 10/186:44 am
BOI
-
BCN
1 stop19h 26m
Iberia
Wed 10/2810:40 am
BCN
-
BOI
1 stop31h 46m
Iberia
Deal found 6/1$775
This Orbitz deal was found by Cheapflights users on 6/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:02 am
BOI
-
BCN
2 stops19h 58m
Iberia
Mon 10/59:20 pm
BCN
-
BOI
2 stops31h 45m
Iberia
Deal found 6/4$781
This CheapOair deal was found by Cheapflights users on 6/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:05 pm
BOI
-
BCN
2 stops28h 55m
Air Canada
Wed 9/3012:15 pm
BCN
-
BOI
2 stops41h 16m
Air Canada
Deal found 6/3$782
This Expedia deal was found by Cheapflights users on 6/3. 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 9/227:02 am
BOI
-
BCN
1 stop19h 08m
Iberia
Wed 9/309:20 pm
BCN
-
BOI
2 stops33h 07m
Iberia
Deal found 6/3$785
This Air Canada deal was found by Cheapflights users on 6/2. 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.
Fri 9/185:40 pm
BOI
-
BCN
2 stops55h 40m
Air Canada
Wed 9/2312:15 pm
BCN
-
BOI
2 stops41h 16m
Air Canada
Deal found 6/2$793
This Expedia deal was found by Cheapflights users on 6/1. 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.
Sun 10/112:55 pm
BOI
-
BCN
2 stops20h 20m
Iberia
Tue 10/2010:15 am
BCN
-
BOI
2 stops18h 50m
Iberia
Deal found 6/1$794
This Scandinavian Airlines deal was found by Cheapflights users on 6/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:23 am
BOI
-
BCN
2 stops23h 47m
Scandinavian Airlines
Sat 9/197:00 pm
BCN
-
BOI
2 stops35h 25m
Scandinavian Airlines
Deal found 6/2$798
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Mon 11/1612:29 pm
BOI
-
BCN
1 stop16h 41m
United Airlines
Thu 11/193:05 pm
BCN
-
BOI
1 stop16h 01m
United Airlines
Deal found 6/4$799

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 June 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$774
(Finnair)

One-way from

$357
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$1,726
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. 28% potential increase in price ($395 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($69 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 6, 2026.
Use the filters below to find and compare flights from Boise to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/18

6:44 am-10:10 am

1 stop19h 26m

Barcelona-El Prat

Wed 10/28

3:05 pm-11:26 am

2 stops27h 21m

$774

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/18

6:44 am-10:10 am

1 stop19h 26m

Barcelona-El Prat

Wed 10/28

10:40 am-11:26 am

1 stop31h 46m

$775

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/11

6:44 am-10:10 am

1 stop19h 26m

Barcelona-El Prat

Tue 10/20

7:40 am-9:05 pm

2 stops21h 25m

$785
Quickest round-trip

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/11

12:29 pm-1:15 pm

1 stop16h 46m

Barcelona-El Prat

Tue 10/20

3:15 pm-11:06 pm

1 stop15h 51m

$799

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 11/16

12:29 pm-1:10 pm

1 stop16h 41m

Barcelona-El Prat

Thu 11/19

3:05 pm-11:06 pm

1 stop16h 01m

$799

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/22

6:15 am-2:20 pm

1 stop24h 05m

Barcelona-El Prat

Wed 9/30

3:15 pm-11:06 pm

1 stop15h 51m

$799

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 8/10

10:35 am-2:20 pm

1 stop19h 45m

Barcelona-El Prat

Fri 8/21

12:15 pm-5:58 pm

2 stops37h 43m

$861

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 9/13

11:50 am-2:20 pm

1 stop18h 30m

Barcelona-El Prat

Thu 9/24

4:10 pm-11:52 pm

1 stop15h 42m

$869
Cheapest one-way

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/12

2:55 pm-5:35 pm

2 stops18h 40m

$357

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/29

3:21 pm-6:40 pm

2 stops19h 19m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Showing 1-10 of 15 resultsSorted by cheapest first
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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice 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 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 $484). Flying from Boise to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,726). 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.

How much does it cost to fly round-trip from Boise to Barcelona-El Prat Airport?

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 June 6, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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
8,395 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,395 reviews
Delta
7.9
Good
8,395 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,777 reviews
Delta
7.9
Good
8,395 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,650 reviews
Delta
7.9
Good
8,395 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Air Canada
7.1
Good
11,131 reviews
Delta
7.9
Good
8,395 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Iberia
7.0
Good
3,224 reviews
Delta
7.9
Good
8,395 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 and Lufthansa fly from Boise to Barcelona-El Prat Airport in about 16h 41m. The time it takes to get you to your destination can typically vary by up to 7h 24m. 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 $498 and $599, respectively. Iberia is priced at 50% 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 $484). Flying from Boise to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,726). 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

Browse thousands of different options on Cheapflights for your next trip

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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 June 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$483Average$940FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$498Average$857FlexibilityNo cancel feeOn-time69%
DeltaCheapest$599Average$1,044FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$751Average$1,033FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$856Average$869FlexibilityNo cancel feeOn-time67%

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