HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$270+ 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
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Bilbao 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 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 January 16, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$487
(United Airlines)

One-way from

$270
(United Airlines)

Popular in

December

Cheapest in

November
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. 8% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($65 potential savings vs. average RT price).
Search Deals

Find flight deals from Boise to Bilbao

Cheapest flights from Boise to Bilbao
Explore the most affordable flight options available from Boise to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2026.

This United Airlines deal was found by Cheapflights users on 1/14. 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 11/1811:45 am
BOI
-
BIO
2 stops27h 20m
United Airlines
Thu 11/267:25 am
BIO
-
BOI
2 stops21h 51m
United Airlines
Deal found 1/14$471
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Thu 2/2610:53 am
BOI
-
BIO
2 stops23h 12m
United Airlines
Mon 3/26:45 am
BIO
-
BOI
2 stops24h 38m
United Airlines
Deal found 1/13$487
This Finnair deal was found by Cheapflights users on 1/15. 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 8/51:36 pm
BOI
-
BIO
2 stops25h 39m
Multiple Airlines
Wed 8/196:45 am
BIO
-
BOI
2 stops38h 01m
Multiple Airlines
Deal found 1/15$520
This United Airlines deal was found by Cheapflights users on 1/14. 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 11/184:05 pm
BOI
-
BIO
2 stops23h 00m
United Airlines
Fri 11/277:25 am
BIO
-
BOI
2 stops19h 51m
United Airlines
Deal found 1/14$664
This Finnair deal was found by Cheapflights users on 1/14. 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 7/82:58 pm
BOI
-
BIO
2 stops24h 17m
Multiple Airlines
Wed 7/226:45 am
BIO
-
BOI
2 stops36h 44m
Multiple Airlines
Deal found 1/14$789
This Finnair deal was found by Cheapflights users on 1/15. 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.
Tue 7/72:58 pm
BOI
-
BIO
2 stops24h 17m
Multiple Airlines
Fri 7/246:45 am
BIO
-
BOI
2 stops36h 44m
Multiple Airlines
Deal found 1/15$820
This KAYAK deal was found by Cheapflights users on 1/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:00 pm
BOI
-
BIO
3 stops20h 50m
Multiple Airlines
Fri 11/276:45 am
BIO
-
BOI
2 stops23h 18m
Multiple Airlines
Deal found 1/15$832
This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:00 pm
BOI
-
BIO
3 stops20h 50m
Multiple Airlines
Thu 11/266:45 am
BIO
-
BOI
3 stops24h 02m
Multiple Airlines
Deal found 1/14$889
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Mon 3/167:47 am
BOI
-
BIO
3 stops20h 03m
United Airlines
Tue 3/247:40 am
BIO
-
BOI
2 stops23h 17m
United Airlines
Deal found 1/14$959
This Ovago deal was found by Cheapflights users on 1/15. 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.
Thu 7/910:24 am
BOI
-
BIO
2 stops22h 06m
Scandinavian Airlines
Sat 7/256:45 am
BIO
-
BOI
2 stops16h 53m
Scandinavian Airlines
Deal found 1/15$1,067
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 7/92:11 pm
BOI
-
BIO
2 stops19h 44m
United Airlines
Sat 7/256:50 am
BIO
-
BOI
2 stops22h 26m
United Airlines
Deal found 1/16$1,094

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 January 16, 2026.
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

Mon 3/16

6:55 pm-11:05 pm

2 stops21h 10m

Bilbao

Tue 3/24

7:40 am-11:17 am

2 stops34h 37m

$471

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sat 2/28

2:40 pm-6:05 pm

2 stops19h 25m

Bilbao

Sat 3/7

12:50 pm-10:17 am

2 stops29h 27m

$487

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 2/26

10:53 am-6:05 pm

2 stops23h 12m

Bilbao

Mon 3/2

6:45 am-11:23 pm

2 stops24h 38m

$487

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 7/8

2:58 pm-11:15 pm

2 stops24h 17m

Bilbao

Wed 7/22

6:45 am-11:29 am

2 stops36h 44m

$789

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 7/7

2:58 pm-11:15 pm

2 stops24h 17m

Bilbao

Fri 7/24

6:45 am-11:29 am

2 stops36h 44m

$820

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 7/8

2:58 pm-11:15 pm

2 stops24h 17m

Bilbao

Fri 7/24

6:45 am-11:29 am

2 stops36h 44m

$820

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 7/9

10:24 am-4:30 pm

2 stops22h 06m

Bilbao

Sat 7/25

6:45 am-3:38 pm

2 stops16h 53m

$1,067

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 7/9

2:11 pm-5:55 pm

2 stops19h 44m

Bilbao

Sat 7/25

6:50 am-9:16 pm

2 stops22h 26m

$1,094

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 5/10

6:55 pm-11:25 pm

2 stops44h 30m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

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 January.
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.

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 January 16, 2026.
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
8,048 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
8,048 reviews
Delta
7.9
Good
8,048 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
1,440 reviews
Delta
7.9
Good
8,048 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
9,163 reviews
Delta
7.9
Good
8,048 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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 21h 10m. 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.

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.

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 January 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$570Average$746FlexibilityNo cancel feeOn-time69%
DeltaCheapest$617Average$1,312FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$1,145Average$1,317FlexibilityNo cancel feeOn-time75%

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.
Site
©2026 Cheapflights