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Bilbao

$649+ 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
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Cheap 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 April 17, 2026.

This Air France deal was found by Cheapflights users on 4/12. 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.
Tue 9/291:15 pm
BOI
-
BIO
2 stops20h 15m
Multiple Airlines
Tue 10/136:45 am
BIO
-
BOI
2 stops19h 48m
Multiple Airlines
Deal found 4/12$741
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:38 am
BOI
-
BIO
2 stops22h 42m
Delta
Fri 11/2711:55 am
BIO
-
BOI
2 stops20h 00m
Delta
Deal found 4/13$742
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Wed 11/186:55 pm
BOI
-
BIO
2 stops20h 10m
United Airlines
Thu 11/266:45 am
BIO
-
BOI
2 stops24h 20m
United Airlines
Deal found 4/13$743
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Tue 10/1310:37 am
BOI
-
BIO
2 stops28h 48m
United Airlines
Wed 10/2812:45 pm
BIO
-
BOI
2 stops39h 30m
United Airlines
Deal found 4/16$749
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:20 am
BOI
-
BIO
2 stops30h 45m
United Airlines
Tue 10/137:15 am
BIO
-
BOI
2 stops23h 07m
United Airlines
Deal found 4/15$757
This Expedia deal was found by Cheapflights users on 4/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:37 am
BOI
-
BIO
2 stops27h 48m
Lufthansa
Thu 8/276:50 am
BIO
-
BOI
2 stops22h 35m
Lufthansa
Deal found 4/13$786
This United Airlines deal was found by Cheapflights users on 4/17. 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 9/55:44 pm
BOI
-
BIO
2 stops45h 41m
United Airlines
Tue 10/136:50 am
BIO
-
BOI
2 stops20h 23m
United Airlines
Deal found 4/17$793
This KLM deal was found by Cheapflights users on 4/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:05 pm
BOI
-
BIO
2 stops21h 55m
Multiple Airlines
Mon 10/1210:30 am
BIO
-
BOI
2 stops20h 38m
Multiple Airlines
Deal found 4/16$799
This United Airlines deal was found by Cheapflights users on 4/12. 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 12/34:05 pm
BOI
-
BIO
2 stops23h 00m
United Airlines
Mon 12/712:45 pm
BIO
-
BOI
2 stops40h 30m
United Airlines
Deal found 4/12$814
This Finnair deal was found by Cheapflights users on 4/17. 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 8/512:17 pm
BOI
-
BIO
2 stops26h 58m
Multiple Airlines
Wed 8/196:45 am
BIO
-
BOI
2 stops36h 42m
Multiple Airlines
Deal found 4/17$817

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 April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$741
(Air France)

One-way from

$649
(Cheapflightsfares)

Popular in

May

Cheapest in

November

Average price

$888
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. 22% potential increase in price ($259 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 17, 2026.
Use the filters below to find and compare flights from Boise to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

11:45 am-11:25 pm

2 stops27h 40m

Bilbao

Tue 10/13

6:50 am-11:59 pm

2 stops25h 09m

$743

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sat 9/5

5:44 pm-11:25 pm

2 stops45h 41m

Bilbao

Tue 10/13

6:50 am-7:13 pm

2 stops20h 23m

$793

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Mon 9/28

4:05 pm-10:00 pm

2 stops21h 55m

Bilbao

Mon 10/12

10:30 am-11:08 pm

2 stops20h 38m

$799

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 8/5

6:44 am-11:15 pm

2 stops32h 31m

Bilbao

Wed 8/19

6:45 am-11:27 am

2 stops36h 42m

$817
Quickest round-trip

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 8/30

4:05 pm-5:30 pm

2 stops17h 25m

Bilbao

Sat 10/10

7:10 am-3:30 pm

2 stops16h 20m

$920

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 7/21

3:06 pm-11:15 pm

2 stops24h 09m

Bilbao

Tue 8/11

6:45 am-11:27 am

2 stops36h 42m

$938

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Mon 7/20

4:07 pm-11:15 pm

2 stops23h 08m

Bilbao

Fri 8/7

6:45 am-11:27 am

2 stops36h 42m

$1,011
Cheapest one-way

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 5/10

10:35 am-11:25 pm

2 stops28h 50m

$649

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 5/10

5:50 am-8:30 am

3 stops18h 40m

$737
Quickest one-way

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 6/24

2:04 pm-3:55 pm

2 stops17h 51m

$858

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Bilbao flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

How much does it cost to fly round-trip from Boise to Bilbao?

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 April 17, 2026.
Peruse reviews from past customers who have flown with Delta,KLM, andUnited 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
8,409 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

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
8,409 reviews
Delta
7.9
Good
8,409 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

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
7.8
Good
1,499 reviews
Delta
7.9
Good
8,409 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

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
9,600 reviews
Delta
7.9
Good
8,409 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

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 40m. 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 $529, Delta will fly you from Boise to Bilbao and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and KLM - these airlines can fly you to your destination from $568 and $1,145, respectively. Delta is 39% 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

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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 April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$1,145FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$568Average$659FlexibilityNo cancel feeOn-time69%
KLMCheapest$1,145Average$1,317FlexibilityNo cancel feeOn-time75%

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