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Bilbao

$459+ Cheap flights from Boise (BOI) to Bilbao (BIO)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIO
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Boise to Bilbao

Best flights from Boise to Bilbao
Discover carefully curated flight deals from Boise to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/2. 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.
Fri 1/2312:19 pmBOI - BIO
2 stops27h 01mUnited Airlines
Tue 1/2711:35 amBIO - BOI
2 stops41h 48mUnited Airlines
Deal found 12/2$484
This United Airlines deal was found by Cheapflights users on 12/3. 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 1/1710:48 amBOI - BIO
2 stops28h 32mUnited Airlines
Sat 1/2412:50 pmBIO - BOI
2 stops35h 20mUnited Airlines
Deal found 12/3$485
This Cheapflightsfares deal was found by Cheapflights users on 12/4. 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.
Fri 5/84:30 pmBOI - BIO
2 stops17h 20mMultiple Airlines
Sun 5/2411:50 amBIO - BOI
2 stops19h 16mMultiple Airlines
Deal found 12/4$1,085
This United Airlines deal was found by Cheapflights users on 12/3. 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 4/106:55 pmBOI - BIO
2 stops38h 15mUnited Airlines
Fri 4/246:45 amBIO - BOI
2 stops22h 30mUnited Airlines
Deal found 12/3$695
This Booking.com deal was found by Cheapflights users on 12/4. 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.
Sat 5/98:40 amBOI - BIO
3 stops25h 25mMultiple Airlines
Sun 5/246:45 amBIO - BOI
2 stops22h 31mMultiple Airlines
Deal found 12/4$1,373

Find flight deals from Boise to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Bilbao (BIO). 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$480
(Delta)

One-way from

$459
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$1,666
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Bilbao flights.
Search Deals
From Boise Air Term. Gowen Fld to Bilbao
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Bilbao
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Bilbao 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 4, 2025.
Use the filters below to find and compare flights from Boise to Bilbao that are best for you.

Fly from

Boise

Fly to

Bilbao

Route

Depart

Return

Price

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Fri 1/23

12:19 pm-11:20 pm

2 stops27h 01m

Bilbao

Tue 1/27

11:35 am-9:23 pm

2 stops41h 48m

$484

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sat 1/17

10:48 am-11:20 pm

2 stops28h 32m

Bilbao

Sat 1/24

12:50 pm-4:10 pm

2 stops35h 20m

$485

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Fri 4/10

6:55 pm-5:10 pm

2 stops38h 15m

Bilbao

Fri 4/24

6:45 am-9:15 pm

2 stops22h 30m

$695

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Fri 5/8

4:30 pm-5:50 pm

2 stops17h 20m

Bilbao

Sun 5/24

11:50 am-11:06 pm

2 stops19h 16m

$1,085

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sat 5/9

8:40 am-6:05 pm

3 stops25h 25m

Bilbao

Sun 5/24

6:45 am-9:16 pm

2 stops22h 31m

$1,373

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 5/10

8:20 am-11:25 pm

2 stops31h 05m

$459

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 5/10

4:30 pm-5:50 pm

2 stops17h 20m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Compare providers for flights from Boise to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Bilbao in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Bilbao flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Bilbao flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Bilbao flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Bilbao

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

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

Currently, November is the cheapest month in which you can book a flight from Boise to Bilbao (average of $569). Flying from Boise to Bilbao in May is currently the most expensive (average of $1,293). 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 BIO?

Find hourly flight availability from Boise to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

One of the essential ways to save on airfare from Boise to Bilbao is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 62% on airfare.

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. 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 Bilbao. Reviews last updated December 4, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from Boise to Bilbao to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Entertainment

7.9

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Entertainment

7.9

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.
KLM
7.7
Good
1,430 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Entertainment

7.9

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
9,066 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Entertainment

7.9

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 Bilbao. 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 Boise to Bilbao?

    Airlines like United Airlines fly from Boise to Bilbao in about 27h 01m. The time it takes to get you to your destination can typically vary by up to . Boise and Bilbao are separated by a distance of 5157 mi.

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

    Currently priced at $570, United Airlines will fly you from Boise to Bilbao and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and KLM - these airlines can fly you to your destination from $617 and $1,145, respectively. United Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Bilbao 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 Bilbao?

    Currently, November is the cheapest month in which you can book a flight from Boise to Bilbao (average of $569). Flying from Boise to Bilbao in May is currently the most expensive (average of $1,293). 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

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Top 3 airlines flying from Boise to Bilbao

Discover the top 3 airlines that operate flights from Boise to Bilbao. 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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$570Average$746FlexibilityNo cancel feeOn-time69%
DeltaCheapest$617Average$1,317FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$1,145Average$1,317FlexibilityNo cancel feeOn-time75%

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