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Barcelona-El Prat

$394+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find 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 November 3, 2025.

This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:00 amBOI - BCN
2 stops24h 05mDelta
Wed 11/1910:15 amBCN - BOI
2 stops32h 47mDelta
Deal found 11/2$457
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 11/1510:40 amBOI - BCN
2 stops38h 55mUnited Airlines
Sat 11/229:55 amBCN - BOI
2 stops40h 14mUnited Airlines
Deal found 11/2$555
This Air Canada deal was found by Cheapflights users on 11/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:15 amBOI - BCN
3 stops19h 20mMultiple Airlines
Sat 11/221:35 pmBCN - BOI
2 stops30h 04mMultiple Airlines
Deal found 11/2$636
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 11/87:00 pmBOI - BCN
2 stops30h 35mUnited Airlines
Sun 11/163:05 pmBCN - BOI
2 stops30h 25mUnited Airlines
Deal found 11/2$675
This Air France deal was found by Cheapflights users on 11/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:04 pmBOI - BCN
1 stop34h 36mAir France
Wed 12/106:00 amBCN - BOI
2 stops24h 05mAir France
Deal found 11/2$757
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/194:57 pmBOI - BCN
2 stops18h 48mMultiple Airlines
Thu 11/277:15 pmBCN - BOI
2 stops28h 19mMultiple Airlines
Deal found 11/2$813
This Air Canada deal was found by Cheapflights users on 11/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:15 amBOI - BCN
3 stops19h 20mAir Canada
Sat 11/221:35 pmBCN - BOI
3 stops30h 04mAir Canada
Deal found 11/2$829
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:45 amBOI - BCN
2 stops24h 20mDelta
Thu 11/276:00 amBCN - BOI
2 stops22h 24mDelta
Deal found 11/1$858
This United Airlines deal was found by Cheapflights users on 11/1. 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 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 1/121:35 pmBCN - BOI
2 stops36h 32mUnited Airlines
Deal found 11/1$929
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amIDA - BCN
2 stops17h 20mUnited Airlines
Tue 12/236:50 amBCN - IDA
2 stops35h 08mUnited Airlines
Deal found 11/1$989
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2110:45 amJAC - BCN
2 stops37h 35mUnited Airlines
Tue 12/211:55 amBCN - JAC
2 stops40h 42mUnited Airlines
Deal found 11/1$1,040
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:06 pmIDA - BCN
2 stops29h 34mDelta
Wed 12/2410:55 amBCN - IDA
2 stops33h 32mDelta
Deal found 11/2$1,192

Cheap 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 November 3, 2025.

Round-trip from

$457
(Delta)

One-way from

$394
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$631
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. 20% potential increase in price ($266 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 3, 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

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

5:40 am-8:00 am

2 stops18h 20m

Barcelona-El Prat

Fri 2/27

10:15 am-9:56 am

2 stops31h 41m

$463

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

6:15 pm-8:00 am

2 stops29h 45m

Barcelona-El Prat

Mon 2/2

10:15 am-10:24 am

2 stops32h 09m

$474

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Mon 2/2

10:40 am-7:25 pm

1 stop16h 45m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Mon 2/2

10:40 am-7:25 pm

1 stop16h 45m

$484

JacksonBarcelona

JAC - BCN

JACBCN

Jackson Hole

Fri 1/16

7:00 am-5:35 pm

2 stops26h 35m

Barcelona-El Prat

Tue 1/20

1:35 pm-9:55 am

2 stops28h 20m

$491

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 2/16

6:25 am-1:00 pm

2 stops22h 35m

Barcelona-El Prat

Sun 2/22

9:55 am-9:11 pm

2 stops43h 16m

$527

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

2:43 pm-11:05 pm

2 stops25h 22m

Barcelona-El Prat

Mon 3/16

3:35 pm-9:16 pm

2 stops36h 41m

$552

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 11/15

10:40 am-9:35 am

2 stops38h 55m

Barcelona-El Prat

Sat 11/22

9:55 am-6:09 pm

2 stops40h 14m

$555

JacksonBarcelona

JAC - BCN

JACBCN

Jackson Hole

Fri 1/16

3:51 pm-10:35 pm

2 stops22h 44m

Barcelona-El Prat

Tue 1/20

10:40 am-1:02 pm

1 stop34h 22m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 33 results
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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 November 3, 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 20m. Delta provides one of the quickest options available for as low as $463. 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 cheapest airlines to fly from Idaho to Barcelona-El Prat Airport one-way?

    $394 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $469 and $472, respectively.

  • 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 Jackson Hole - 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

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Alternative routes for Idaho to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$552Average$881FlexibilityNo cancel feeOn-time69%
FinnairCheapest$637Average$980FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$641Average$1,033FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$857FlexibilityNo cancel feeOn-time67%
DeltaCheapest$726Average$935FlexibilityNo cancel feeOn-timeN/A

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