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$606+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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 April 29, 2025.

Round-trip from

$929
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$898
From Boise Air Term. Gowen Fld to Barcelona
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Highest demand for flights based on searches. 25% potential increase in price ($335 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 29, 2025.

This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:45 pmBOI - BCN
1 stop15h 15mUnited Airlines
Tue 10/71:15 pmBCN - BOI
2 stops40h 17mUnited Airlines
Deal found 4/28$606
This Air Canada deal was found by Cheapflights users on 4/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:00 amBOI - BCN
3 stops20h 20mMultiple Airlines
Tue 10/712:10 pmBCN - BOI
2 stops17h 22mMultiple Airlines
Deal found 4/28$633
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/812:29 pmBOI - BCN
2 stops37h 06mAir Canada
Mon 11/171:35 pmBCN - BOI
2 stops41h 31mAir Canada
Deal found 4/28$655
This Gurufare deal was found by Cheapflights users on 4/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:30 amBOI - BCN
1 stop18h 40mFinnair
Wed 10/2212:20 pmBCN - BOI
1 stop16h 52mFinnair
Deal found 4/28$885
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:30 pmBOI - BCN
1 stop25h 10mKLM
Mon 1/125:25 pmBCN - BOI
2 stops31h 28mKLM
Deal found 4/28$1,136
This Gurufare deal was found by Cheapflights users on 4/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1110:42 amBOI - BCN
2 stops23h 13mLufthansa
Wed 6/253:15 pmBCN - BOI
1 stop15h 37mLufthansa
Deal found 4/28$1,181
This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/211:50 pmBOI - BCN
2 stops20h 20mScandinavian Airlines
Mon 5/267:00 pmBCN - BOI
2 stops36h 28mScandinavian Airlines
Deal found 4/28$1,206
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/121:15 pmBOI - BCN
1 stop13h 15mAmerican Airlines
Thu 6/1912:20 pmBCN - BOI
1 stop18h 59mAmerican Airlines
Deal found 4/28$1,232
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/177:45 amBOI - BCN
2 stops31h 30mITA Airways
Tue 5/206:20 amBCN - BOI
2 stops25h 08mITA Airways
Deal found 4/28$1,273
This Travelocity deal was found by Cheapflights users on 4/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/27:00 amBOI - BCN
1 stop19h 10mIberia
Fri 8/86:10 pmBCN - BOI
2 stops36h 44mIberia
Deal found 4/29$1,333
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:40 amBOI - BCN
2 stops18h 20mDelta
Tue 1/610:55 amBCN - BOI
1 stop33h 50mDelta
Deal found 4/28$1,572

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 April 29, 2025.
Use the filters below to find and compare flights from Boise to Barcelona that are best for you.

Fly from

Boise

Fly to

Barcelona

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 7/20

7:15 pm-7:50 am

2 stops28h 35m

Barcelona-El Prat

Fri 8/8

12:10 pm-1:29 pm

2 stops33h 19m

$929

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 6/11

6:30 am-7:50 am

2 stops17h 20m

Barcelona-El Prat

Wed 6/25

12:10 pm-9:26 pm

2 stops17h 16m

$1,162

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 6/11

10:42 am-5:55 pm

2 stops23h 13m

Barcelona-El Prat

Wed 6/25

3:15 pm-10:52 pm

1 stop15h 37m

$1,181

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 5/21

1:50 pm-6:10 pm

2 stops20h 20m

Barcelona-El Prat

Mon 5/26

7:00 pm-11:28 pm

2 stops36h 28m

$1,206

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 6/12

1:15 pm-10:30 am

1 stop13h 15m

Barcelona-El Prat

Thu 6/19

12:20 pm-11:19 pm

1 stop18h 59m

$1,232

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 5/17

7:45 am-11:15 pm

2 stops31h 30m

Barcelona-El Prat

Tue 5/20

6:20 am-11:28 pm

2 stops25h 08m

$1,273

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 6/11

5:43 pm-7:50 am

3 stops30h 07m

Barcelona-El Prat

Wed 6/25

12:10 pm-11:43 am

3 stops31h 33m

$1,478

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 7/7

11:44 am-10:10 am

1 stop14h 26m

Barcelona-El Prat

Thu 7/10

12:20 pm-11:15 pm

1 stop18h 55m

$1,994

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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, 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 $1,064). 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 April 29, 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 April 29, 2025.
Read reviews from past customers who have flown United Airlines, Scandinavian Airlines and American Airlines from Boise to Barcelona. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Scandinavian Airlines
7.3
Good
1,349 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,244 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,698 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 3 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 $929. Additional round-trip tickets that might be worth considering are offered by Lufthansa and Scandinavian Airlines, with the lowest prices starting at $1,181 and $1,206, respectively. United Airlines is currently priced 7% 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, 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 $1,064). 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

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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
Jackson to Barcelona-El Prat flights
Idaho Falls to Barcelona-El Prat flights

Top 3 airlines flying from Boise to Barcelona

Discover the top 3 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$570Average$892FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$658Average$1,002FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$684Average$1,062FlexibilityNo cancel feeOn-time71%

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