HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$657+ Cheap flights from Boise (BOI) to Barcelona

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
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.

The best prices from Boise Air Term. Gowen Fld to Barcelona are usually found in March or November, booked 16 days in advance, depart on a Sunday or Wednesday and return on a Monday

Cheap 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 January 21, 2025.

Round-trip from

$685
(United Airlines)

Popular in

June

Cheapest in

March

Average price

$910
From Boise Air Term. Gowen Fld to Barcelona
Search Deals
High demand for flights, 29% potential price rise
Search Deals
Best time to find cheap flights, 7% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find 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 January 21, 2025.

This United deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:40 amBOI - BCN
1 stop21h 20mUnited Airlines
Tue 11/412:15 pmBCN - BOI
2 stops37h 40mUnited Airlines
Deal found 1/20$657
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Tue 3/185:00 amBOI - BCN
2 stops20h 50mAir Canada
Tue 4/812:15 pmBCN - BOI
2 stops41h 07mAir Canada
Deal found 1/20$695
This KLM deal was found by Cheapflights users on 1/20. 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.
Thu 3/67:15 amBOI - BCN
2 stops21h 00mKLM
Thu 3/139:45 amBCN - BOI
1 stop19h 44mKLM
Deal found 1/20$752
This Ovago deal was found by Cheapflights users on 1/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/307:15 amBOI - BCN
2 stops26h 55mScandinavian Airlines
Wed 4/167:00 pmBCN - BOI
2 stops35h 49mScandinavian Airlines
Deal found 1/20$774
This Finnair deal was found by Cheapflights users on 1/20. 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 3/127:05 amBOI - BCN
2 stops22h 00mMultiple Airlines
Wed 4/212:20 pmBCN - BOI
1 stop17h 35mMultiple Airlines
Deal found 1/20$813
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/185:15 pmBOI - BCN
2 stops19h 35mAmerican Airlines
Tue 4/812:20 pmBCN - BOI
1 stop17h 52mAmerican Airlines
Deal found 1/20$820
This Delta deal was found by Cheapflights users on 1/20. 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 3/3011:30 pmBOI - BCN
1 stop25h 50mDelta
Wed 4/166:10 amBCN - BOI
2 stops25h 48mDelta
Deal found 1/20$866
This Finnair deal was found by Cheapflights users on 1/19. 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.
Mon 4/77:05 amBOI - BCN
1 stop19h 05mFinnair
Mon 4/149:10 pmBCN - BOI
2 stops33h 02mFinnair
Deal found 1/19$1,004
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:58 pmBOI - BCN
1 stop15h 37mIberia
Tue 4/812:15 pmBCN - BOI
1 stop17h 57mIberia
Deal found 1/20$1,249

Find flights from Boise to Barcelona within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 3/12

7:00 am-5:40 pm

2 stops27h 40m

Barcelona-El Prat

Wed 4/2

1:15 pm-5:52 pm

2 stops36h 37m

$685

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 3/18

5:00 am-8:50 am

2 stops20h 50m

Barcelona-El Prat

Tue 4/8

12:15 pm-9:22 pm

2 stops41h 07m

$695

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 3/6

7:15 am-12:15 pm

2 stops21h 00m

Barcelona-El Prat

Thu 3/13

9:45 am-10:29 pm

1 stop19h 44m

$752

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 3/30

7:15 am-6:10 pm

2 stops26h 55m

Barcelona-El Prat

Wed 4/16

7:00 pm-10:49 pm

2 stops35h 49m

$774

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 3/12

7:05 am-12:05 pm

2 stops22h 00m

Barcelona-El Prat

Wed 4/2

12:20 pm-9:55 pm

1 stop17h 35m

$813

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 3/18

5:15 pm-7:50 pm

2 stops19h 35m

Barcelona-El Prat

Tue 4/8

12:20 pm-10:12 pm

1 stop17h 52m

$820

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 3/30

11:30 pm-9:20 am

1 stop25h 50m

Barcelona-El Prat

Wed 4/16

6:10 am-11:58 pm

2 stops25h 48m

$866

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 4/7

7:05 am-10:10 am

1 stop19h 05m

Barcelona-El Prat

Mon 4/14

9:10 pm-10:12 pm

2 stops33h 02m

$1,004

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 3/18

6:58 pm-5:35 pm

1 stop15h 37m

Barcelona-El Prat

Tue 4/8

12:15 pm-10:12 pm

1 stop17h 57m

$1,249

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 6/28

5:40 am-12:25 pm

2 stops22h 45m

$860

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 14 results
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.

Travel insights for flights from Boise to Barcelona

Get recent, data-driven insights about flights from Boise to Barcelona including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boise to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Barcelona. Price data was last updated on January 17, 2025.

Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boise to Barcelona. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Boise to Barcelona (average of $523). Flying from Boise to Barcelona in June is currently the most expensive (average of $1,097). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Boise to Barcelona 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.

Rainfall in Barcelona by month

Plan your trip to Barcelona by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

Plan your trip to Barcelona by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 January 21, 2025.
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.9

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.9

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.9

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.9

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.9

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines
7.3
Good
1,320 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.9

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Flying on United Airlines is currently your cheapest option to Barcelona, with prices starting at $685. Additional round-trip tickets that might be worth considering are offered by Air Canada and KLM, with the lowest prices starting at $695 and $752, respectively. United Airlines is currently priced 30% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $860. However, be on the lookout for offers from Scandinavian Airlines and United Airlines, as they are both options that can get you from Boise to Barcelona for a low price.

  • 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, January is the cheapest month in which you can book a flight from Boise to Barcelona (average of $523). Flying from Boise to Barcelona in June is currently the most expensive (average of $1,097). 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
Spokane to Barcelona-El Prat flights
Idaho Falls to Barcelona-El Prat flights
Jackson 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$564Average$911FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$574Average$983FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$634Average$1,029FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$709Average$1,336FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$808Average$1,084FlexibilityNo cancel feeOn-time70%
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.