HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona-El Prat

$448+ Cheap flights from Idaho 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Barcelona-El Prat 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 Idaho to Barcelona-El Prat

Cheapest flights from Idaho to Barcelona-El Prat
Explore the most affordable flight options available from Idaho to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/9. 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 12/212:40 pmBOI - BCN
2 stops57h 40mUnited Airlines
Mon 1/1211:55 amBCN - BOI
2 stops39h 50mUnited Airlines
Deal found 12/9$1,866
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/176:20 amBOI - BCN
2 stops18h 40mUnited Airlines
Tue 1/61:50 pmBCN - BOI
2 stops40h 02mUnited Airlines
Deal found 12/10$1,902
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/215:12 pmBOI - BCN
2 stops55h 08mUnited Airlines
Wed 1/711:00 amBCN - BOI
2 stops33h 39mUnited Airlines
Deal found 12/11$1,923
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sat 12/205:12 pmBOI - BCN
2 stops33h 33mUnited Airlines
Wed 1/71:50 pmBCN - BOI
2 stops55h 45mUnited Airlines
Deal found 12/10$2,048
This CheapOair deal was found by Cheapflights users on 12/10. 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 12/218:20 amBOI - BCN
2 stops41h 15mMultiple Airlines
Wed 1/711:55 amBCN - BOI
2 stops39h 50mMultiple Airlines
Deal found 12/10$2,163
This CheapOair deal was found by Cheapflights users on 12/10. 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.
Sat 12/202:40 pmBOI - BCN
2 stops36h 05mMultiple Airlines
Mon 12/296:20 pmBCN - BOI
2 stops31h 43mMultiple Airlines
Deal found 12/10$2,168
This CheapOair deal was found by Cheapflights users on 12/9. 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 12/2110:42 amBOI - BCN
2 stops38h 53mMultiple Airlines
Mon 1/1210:40 amBCN - BOI
1 stop16h 45mMultiple Airlines
Deal found 12/9$2,211
This KLM deal was found by Cheapflights users on 12/11. 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 12/211:55 pmBOI - BCN
2 stops18h 35mKLM
Wed 1/76:00 amBCN - BOI
2 stops22h 55mKLM
Deal found 12/11$2,264
This Delta deal was found by Cheapflights users on 12/10. 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 12/211:55 pmBOI - BCN
2 stops21h 10mDelta
Wed 1/71:00 pmBCN - BOI
2 stops31h 54mDelta
Deal found 12/10$2,269

Find flight deals from Idaho to Barcelona-El Prat

Keep the following information in mind while searching for Idaho to Barcelona-El Prat flight deals. Data was last updated December 12, 2025.

Round-trip from

$473
(Gurufare)

One-way from

$448
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,269
From Idaho to Barcelona-El Prat
Search Deals
One-way flight from Idaho to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($248 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 December 12, 2025.
Use the filters below to find and compare flights from Idaho to Barcelona-El Prat Airport that are best for you.

Fly from

Idaho

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Mon 2/2

6:53 am-5:35 pm

2 stops25h 42m

Barcelona-El Prat

Sun 2/8

5:50 am-7:16 pm

2 stops22h 26m

$475

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

4:02 pm-4:30 pm

2 stops16h 28m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$480

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Sat 1/24

3:43 pm-7:10 pm

2 stops18h 27m

Barcelona-El Prat

Sat 1/31

10:40 am-6:49 pm

1 stop17h 09m

$480

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Mon 2/2

1:38 pm-5:55 pm

2 stops19h 17m

Barcelona-El Prat

Sun 2/8

10:40 am-6:49 pm

1 stop17h 09m

$480

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Sun 1/25

6:53 am-9:35 am

2 stops41h 42m

Barcelona-El Prat

Sun 2/1

6:50 am-7:16 pm

2 stops21h 26m

$482

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

7:00 am-7:50 am

1 stop17h 50m

Barcelona-El Prat

Mon 3/16

10:40 am-10:36 pm

1 stop18h 56m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

1:36 pm-4:30 pm

2 stops18h 54m

Barcelona-El Prat

Fri 2/27

10:40 am-11:34 pm

2 stops20h 54m

$485

Idaho FallsBarcelona

IDA - BCN

IDABCN

Idaho Falls Fanning Field

Sun 1/25

2:07 pm-8:05 pm

2 stops21h 58m

Barcelona-El Prat

Sun 2/1

10:40 am-10:59 pm

2 stops20h 19m

$485

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 2/16

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Sun 2/22

3:05 pm-12:46 pm

2 stops29h 41m

$488

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Fri 3/6

5:00 am-3:00 pm

2 stops25h 00m

Barcelona-El Prat

Fri 3/13

9:15 am-8:47 am

2 stops31h 32m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 35 results
1
2
3
4

Best time to book a flight from Idaho to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Idaho 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 Idaho to Barcelona-El Prat Airport

What is the cheapest month to book a flight from Idaho to Barcelona-El Prat Airport?

Currently, February is the cheapest month in which you can book a flight from Idaho to Barcelona-El Prat Airport (average of $482). Flying from Idaho to Barcelona-El Prat Airport in January is currently the most expensive (average of $1,292). 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 ID to BCN?

Find hourly flight availability from Idaho 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 December 12, 2025.

When flying from Idaho to Barcelona-El Prat Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from Idaho 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.

  • How long is the flight from Idaho to Barcelona-El Prat Airport?

    A quick flight from Idaho to Barcelona-El Prat Airport can take about 18h 54m. Lufthansa provides one of the quickest options available for as low as $485. The distance from Idaho to Barcelona-El Prat Airport is about 5431 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Idaho to Barcelona-El Prat Airport?

    The most popular route from Idaho to Barcelona-El Prat Airport is Boise Air Term. Gowen Fld - Barcelona-El Prat. You may also consider Spokane - Barcelona-El Prat or Idaho Falls Fanning Field - Barcelona-El Prat.

  • Can I find deals for flights from Idaho to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Idaho to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho 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 Idaho to Barcelona-El Prat.

  • Can I find deals for business class flights from Idaho to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Idaho 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 Idaho to Barcelona-El Prat Airport?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Barcelona-El Prat Airport (average of $482). Flying from Idaho to Barcelona-El Prat Airport in January is currently the most expensive (average of $1,292). 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
Calella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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 Idaho to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Barcelona-El Prat flights
Newark to Barcelona-El Prat flights
Miami to Barcelona-El Prat flights
LaGuardia to Barcelona-El Prat flights
Dulles Intl to Barcelona-El Prat flights
Boston to Barcelona-El Prat flights
Los Angeles to Barcelona-El Prat flights
O'Hare Intl to Barcelona-El Prat flights
Dallas/Fort Worth to Barcelona-El Prat flights
San Francisco to Barcelona-El Prat flights
Atlanta to Barcelona-El Prat flights
Philadelphia to Barcelona-El Prat flights
Baltimore to Barcelona-El Prat flights
Reagan-National to Barcelona-El Prat flights
Seattle to Barcelona-El Prat flights
Denver to Barcelona-El Prat flights
Orlando to Barcelona-El Prat flights
Fort Lauderdale to Barcelona-El Prat flights
Love Field to Barcelona-El Prat flights
Ontario to Barcelona-El Prat flights
Minneapolis to Barcelona-El Prat flights
Charlotte to Barcelona-El Prat flights
Santa Ana to Barcelona-El Prat flights
San Jose to Barcelona-El Prat flights
Portland to Barcelona-El Prat flights
San Diego to Barcelona-El Prat flights
Midway to Barcelona-El Prat flights
Hobby to Barcelona-El Prat flights
Sky Harbor Intl to Barcelona-El Prat flights
Tampa to Barcelona-El Prat flights
Austin to Barcelona-El Prat flights
Detroit to Barcelona-El Prat flights
Raleigh to Barcelona-El Prat flights
George Bush Intcntl to Barcelona-El Prat flights
West Palm Beach to Barcelona-El Prat flights
Cleveland to Barcelona-El Prat flights
Nashville to Barcelona-El Prat flights
Salt Lake City to Barcelona-El Prat flights
Indianapolis to Barcelona-El Prat flights
Boise to Barcelona-El Prat flights
Las Vegas to Barcelona-El Prat flights
Kansas City to Barcelona-El Prat flights
Cincinnati to Barcelona-El Prat flights
Columbus to Barcelona-El Prat flights
Greenville to Barcelona-El Prat flights
Syracuse to Barcelona-El Prat flights
Des Moines to Barcelona-El Prat flights
St. Louis to Barcelona-El Prat flights
Oakland to Barcelona-El Prat flights
New Orleans to Barcelona-El Prat flights

Top 5 airlines flying from Idaho to Barcelona-El Prat

Discover the top 5 airlines that operate flights from Idaho 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$552Average$863FlexibilityNo cancel feeOn-time69%
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$641Average$1,040FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$865FlexibilityNo cancel feeOn-time67%
DeltaCheapest$726Average$954FlexibilityNo cancel feeOn-timeN/A

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.