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Barcelona-El Prat

$353+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
jul. 1 — jul. 81
mar. 7/1
mar. 7/8
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 junio 26, 2025.

Round-trip from

$489
(FlightHub)

One-way from

$353
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,647
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. 26% potential increase in price ($356 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 26, 2025.

This FlightHub deal was found by Cheapflights users on 6/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/125:00 amBOI - BCN
2 stops18h 50mAir Canada
mié. 10/2212:10 pmBCN - BOI
2 stops29h 32mAir Canada
Deal found 6/25$489
This United Airlines deal was found by Cheapflights users on 6/25. 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.
mié. 10/110:45 amBOI - BCN
2 stops20h 45mUnited Airlines
mar. 10/712:10 pmBCN - BOI
2 stops41h 14mUnited Airlines
Deal found 6/25$509
This Gurufare deal was found by Cheapflights users on 6/25. 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.
mié. 11/1912:35 pmBOI - BCN
2 stops21h 00mLufthansa
jue. 11/273:05 pmBCN - BOI
1 stop15h 50mLufthansa
Deal found 6/25$525
This Virgin Atlantic deal was found by Cheapflights users on 6/25. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/81:43 pmBOI - BCN
1 stop34h 57mVirgin Atlantic
lun. 11/1710:55 amBCN - BOI
1 stop19h 48mVirgin Atlantic
Deal found 6/25$539
This Air France deal was found by Cheapflights users on 6/24. 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.
mié. 11/195:40 amBOI - BCN
2 stops18h 20mMultiple Airlines
jue. 11/276:00 amBCN - BOI
2 stops25h 04mMultiple Airlines
Deal found 6/24$564
This Iberia deal was found by Cheapflights users on 6/25. 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.
dom. 10/121:41 pmBOI - BCN
2 stops20h 34mIberia
mié. 10/2212:20 pmBCN - BOI
1 stop16h 52mIberia
Deal found 6/25$586
This American Airlines deal was found by Cheapflights users on 6/25. 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.
mié. 10/11:07 pmBOI - BCN
1 stop13h 23mAmerican Airlines
mar. 10/712:20 pmBCN - BOI
1 stop16h 52mAmerican Airlines
Deal found 6/25$620
This lol.travel deal was found by Cheapflights users on 6/26. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/411:44 amBOI - BCN
1 stop14h 26mFinnair
mar. 8/1912:20 pmBCN - BOI
1 stop17h 23mFinnair
Deal found 6/26$624
This KLM deal was found by Cheapflights users on 6/25. 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.
dom. 12/2111:30 pmBOI - BCN
1 stop25h 10mKLM
lun. 1/127:55 pmBCN - BOI
2 stops28h 31mKLM
Deal found 6/25$1,068
This Delta deal was found by Cheapflights users on 6/26. 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.
sáb. 12/2011:30 pmBOI - BCN
1 stop25h 10mDelta
lun. 12/296:00 amBCN - BOI
2 stops25h 51mDelta
Deal found 6/26$1,225
This Expedia deal was found by Cheapflights users on 6/26. 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.
lun. 8/47:45 amBOI - BCN
2 stops24h 10mITA Airways
mar. 8/196:20 amBCN - BOI
2 stops24h 37mITA Airways
Deal found 6/26$1,637
This British Airways deal was found by Cheapflights users on 6/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/88:18 amBOI - BCN
2 stops20h 57mBritish Airways
jue. 7/249:15 pmBCN - BOI
2 stops33h 31mBritish Airways
Deal found 6/26$3,197

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 junio 26, 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

dom. 10/12

5:00 am-7:50 am

2 stops18h 50m

Barcelona-El Prat

mié. 10/22

12:10 pm-9:42 am

2 stops29h 32m

$489

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

mié. 10/1

10:45 am-3:30 pm

2 stops20h 45m

Barcelona-El Prat

mar. 10/7

12:10 pm-9:24 pm

2 stops41h 14m

$509

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

mié. 11/19

12:35 pm-5:35 pm

2 stops21h 00m

Barcelona-El Prat

jue. 11/27

3:05 pm-10:55 pm

1 stop15h 50m

$525

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

sáb. 11/8

1:43 pm-8:40 am

1 stop34h 57m

Barcelona-El Prat

lun. 11/17

10:55 am-10:43 pm

1 stop19h 48m

$539

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

mié. 11/19

5:40 am-8:00 am

2 stops18h 20m

Barcelona-El Prat

jue. 11/27

6:00 am-11:04 pm

2 stops25h 04m

$564

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

dom. 10/12

1:41 pm-6:15 pm

2 stops20h 34m

Barcelona-El Prat

mié. 10/22

12:20 pm-9:12 pm

1 stop16h 52m

$586

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

mié. 10/1

1:07 pm-10:30 am

1 stop13h 23m

Barcelona-El Prat

mar. 10/7

12:20 pm-9:12 pm

1 stop16h 52m

$620

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

lun. 8/4

11:44 am-10:10 am

1 stop14h 26m

Barcelona-El Prat

mar. 8/19

12:20 pm-9:43 pm

1 stop17h 23m

$624

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

dom. 12/21

11:30 pm-8:40 am

1 stop25h 10m

Barcelona-El Prat

lun. 1/12

7:55 pm-4:26 pm

2 stops28h 31m

$1,068

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

sáb. 12/20

11:30 pm-8:40 am

1 stop25h 10m

Barcelona-El Prat

lun. 12/29

6:00 am-11:51 pm

2 stops25h 51m

$1,225

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 18 results
1
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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, January is the cheapest month in which you can book a flight from Boise to Barcelona-El Prat Airport (average of $523). Flying from Boise to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,062). 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 junio 26, 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 17% on your trip compared to booking a flight in the morning.

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 junio 26, 2025.
See what other customers who have flown with Delta, KLM, and Finnair 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
8.0
Very good
7,964 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,298 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,470 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,838 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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. 3 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.

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

    Currently priced at $489, Air Canada will fly you from Boise to Barcelona-El Prat Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from $509 and $525, respectively. Air Canada is priced at 50% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $429. However, be on the lookout for offers from Air Canada and Air France, as they are both options that can get you from Boise to Barcelona-El Prat Airport for a low price.

  • 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, January is the cheapest month in which you can book a flight from Boise to Barcelona-El Prat Airport (average of $523). Flying from Boise to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,062). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Calella
Castelldefels
Cadaques
L'Hospitalet de Llobregat
El Prat de Llobregat
Badalona
Pineda de Mar
Santa Susanna

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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
Jackson to Barcelona-El Prat flights
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Top 3 airlines flying from Boise to Barcelona-El Prat

Discover the top 3 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 junio 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$570Average$902FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$586Average$977FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$641Average$1,041FlexibilityNo cancel feeOn-time71%

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