HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$288+ Cheap flights from Boise (BOI) to Barcelona

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Apr 2 — Apr 91
Thu 4/2
Thu 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Barcelona with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boise to Barcelona

Cheapest flights from Boise to Barcelona
Explore the most affordable flight options available from Boise to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2026.

This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/121:29 pm
BOI
-
BCN
2 stops19h 36m
American Airlines
Wed 4/2210:45 am
BCN
-
BOI
1 stop20h 09m
American Airlines
Deal found 2/26$682
This United Airlines deal was found by Cheapflights users on 2/27. 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 4/128:20 am
BOI
-
BCN
1 stop20h 55m
United Airlines
Wed 4/221:15 pm
BCN
-
BOI
2 stops40h 07m
United Airlines
Deal found 2/27$690
This United Airlines deal was found by Cheapflights users on 3/2. 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 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 stops19h 05m
United Airlines
Tue 4/2812:15 pm
BCN
-
BOI
2 stops42h 00m
United Airlines
Deal found 3/2$694
This Finnair deal was found by Cheapflights users on 3/1. 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.
Wed 4/151:29 pm
BOI
-
BCN
1 stop13h 06m
Finnair
Wed 4/2210:45 am
BCN
-
BOI
1 stop20h 09m
Finnair
Deal found 3/1$698
This FlightHub deal was found by Cheapflights users on 2/28. 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.
Sun 4/126:15 am
BOI
-
BCN
2 stops43h 05m
Air Canada
Wed 4/221:15 pm
BCN
-
BOI
2 stops40h 07m
Air Canada
Deal found 2/28$699
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:15 am
BOI
-
BCN
2 stops43h 05m
Air Canada
Tue 4/211:15 pm
BCN
-
BOI
2 stops40h 07m
Air Canada
Deal found 3/1$700
This Booking.com deal was found by Cheapflights users on 3/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:15 am
BOI
-
BCN
2 stops19h 05m
Air Canada
Wed 4/221:15 pm
BCN
-
BOI
2 stops40h 07m
Air Canada
Deal found 3/1$701

Find flight deals from Boise to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Barcelona (S37). 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 March 3, 2026.

Round-trip from

$682
(American Airlines)

One-way from

$288
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$841
From Boise Air Term. Gowen Fld to Barcelona
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Barcelona
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($268 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Barcelona 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 March 3, 2026.
Use the filters below to find and compare flights from Boise to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 7/7

12:38 pm-1:15 pm

1 stop16h 37m

Barcelona-El Prat

Wed 7/15

4:10 pm-11:55 pm

1 stop15h 45m

$916

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 7/7

12:38 pm-1:15 pm

1 stop16h 37m

Barcelona-El Prat

Tue 7/14

1:15 pm-1:35 pm

2 stops32h 20m

$930

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 8/22

8:15 am-8:00 am

2 stops39h 45m

Barcelona-El Prat

Sun 8/30

12:15 pm-9:25 pm

2 stops41h 10m

$959

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 5/18

8:28 am-5:55 pm

2 stops25h 27m

Barcelona-El Prat

Mon 5/25

1:25 pm-9:35 pm

2 stops40h 10m

$1,015

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 7/6

2:05 pm-2:20 pm

1 stop16h 15m

Barcelona-El Prat

Tue 7/14

4:10 pm-11:55 pm

1 stop15h 45m

$1,016

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 4/14

9:02 am-4:25 pm

1 stop23h 23m

$288

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 5/2

2:57 pm-4:15 pm

3 stops41h 18m

$337

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 4/15

8:28 pm-1:20 pm

2 stops32h 52m

$398

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/5

10:35 am-10:25 pm

2 stops27h 50m

$741

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/5

12:04 pm-8:00 am

2 stops35h 56m

$748

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Boise to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

What is the cheapest month to book a flight from Boise to Barcelona?

Currently, February is the cheapest month in which you can book a flight from Boise to Barcelona (average of $476). Flying from Boise to Barcelona 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.

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

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated March 3, 2026.
Read through reviews of airlines operating flights from Boise to Barcelona, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,244 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
8,244 reviews
Delta
7.9
Good
8,244 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
9,381 reviews
Delta
7.9
Good
8,244 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
7.1
Good
11,376 reviews
Delta
7.9
Good
8,244 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
10,775 reviews
Delta
7.9
Good
8,244 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
3,131 reviews
Delta
7.9
Good
8,244 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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. 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?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Barcelona. On average, Air Term. Gowen Fld has 0 outbound flights to Barcelona per day from 5 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Boise to Barcelona?

    There are many flights that can get you from Boise to Barcelona in 16h 37m. Fly via United Airlines to get the fastest option. The distance between Boise and Barcelona is about 5431 mi.

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

    Flying on Iberia is currently your cheapest option to Barcelona, with prices starting at $483. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $498 and $599, respectively. Iberia is currently priced 48% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Barcelona 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?

    Currently, February is the cheapest month in which you can book a flight from Boise to Barcelona (average of $476). Flying from Boise to Barcelona 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boise to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Barcelona-El Prat flights

Top 5 airlines flying from Boise to Barcelona

Discover the top 5 airlines that operate flights from Boise to Barcelona. 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 March 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$483Average$685FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$498Average$849FlexibilityNo cancel feeOn-time69%
DeltaCheapest$599Average$935FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$634Average$1,029FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$857FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.