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Bilbao

$490+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIO
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$604
(FlightHub)

One-way from

$490
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$1,672
From Boise Air Term. Gowen Fld to Bilbao
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One-way flight from Boise Air Term. Gowen Fld to Bilbao
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Highest demand for flights based on searches. 21% potential increase in price ($307 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 18, 2025.

This FlightHub deal was found by Cheapflights users on 6/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/512:35 pmBOI - BIO
2 stops21h 30mLufthansa
Thu 11/136:30 amBIO - BOI
2 stops22h 51mLufthansa
Deal found 6/18$604
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 11/52:11 pmBOI - BIO
2 stops24h 54mUnited Airlines
Thu 11/136:30 amBIO - BOI
3 stops39h 14mUnited Airlines
Deal found 6/16$605
This Air Canada deal was found by Cheapflights users on 6/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:15 amBOI - BIO
3 stops21h 50mAir Canada
Fri 11/146:40 amBIO - BOI
3 stops24h 05mAir Canada
Deal found 6/16$622
This Delta deal was found by Cheapflights users on 6/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:15 pmBOI - BIO
2 stops19h 25mDelta
Sat 10/47:10 amBIO - BOI
2 stops23h 54mDelta
Deal found 6/17$719
This United deal was found by Cheapflights users on 6/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/177:15 pmBOI - BIO
3 stops44h 10mMultiple Airlines
Thu 7/246:45 amBIO - BOI
2 stops22h 49mMultiple Airlines
Deal found 6/17$1,569

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 June 18, 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

Wed 11/5

12:35 pm-6:05 pm

2 stops21h 30m

Bilbao

Thu 11/13

6:30 am-9:21 pm

2 stops22h 51m

$604

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/5

2:40 pm-11:05 pm

2 stops24h 25m

Bilbao

Fri 11/14

6:40 am-11:28 pm

2 stops24h 48m

$605

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/5

6:15 am-12:05 pm

3 stops21h 50m

Bilbao

Fri 11/14

6:40 am-9:21 pm

3 stops22h 41m

$622

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 9/25

1:15 pm-4:40 pm

2 stops19h 25m

Bilbao

Sat 10/4

7:10 am-11:04 pm

2 stops23h 54m

$719

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 7/17

7:15 pm-11:25 pm

3 stops44h 10m

Bilbao

Thu 7/24

6:45 am-9:34 pm

2 stops22h 49m

$1,569

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 9/17

2:45 pm-11:25 pm

2 stops24h 40m

$490

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 9/17

5:40 am-10:00 pm

3 stops32h 20m

$1,281

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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 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 June 18, 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 63% on airfare.

Rainfall in Bilbao by month

Plan your trip to Bilbao by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

Plan your trip to Bilbao by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 June 18, 2025.
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,876 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,572 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,158 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Currently priced at $604, Lufthansa will fly you from Boise to Bilbao and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from $605 and $622, respectively. Lufthansa is 45% 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, January is the cheapest month in which you can book a flight from Boise to Bilbao (average of $541). Flying from Boise to Bilbao in June is currently the most expensive (average of $1,142). 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

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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$530Average$759FlexibilityNo cancel feeOn-time69%
DeltaCheapest$617Average$1,315FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$664Average$1,317FlexibilityNo cancel feeOn-time75%

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