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Bilbao

$251+ Cheap flights from Boston (BOS) 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BIO
Jan 28 — Feb 41
Tue 1/28
Tue 2/4
1 adult, Economy
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The best prices from Boston Logan Intl to Bilbao are usually found in October or February, booked 80 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

Cheap flight deals from Boston to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 23, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$488
(AirNGo)

One-way from

$251
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$714
Provider with most accurate pricing for Boston Logan Intl-Bilbao flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Bilbao flights.
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From Boston Logan Intl to Bilbao
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One-way flight from Boston Logan Intl to Bilbao
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Highest demand for flights based on searches. 18% potential increase in price ($175 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Boston to Bilbao

Cheapest flights from Boston to Bilbao
Explore the most affordable flight options available from Boston to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.

This AirNGo deal was found by Cheapflights users on 1/23. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/28:35 pmBOS - BIO
1 stop19h 45mMultiple Airlines
Tue 2/185:20 pmBIO - BOS
1 stop26h 15mMultiple Airlines
Deal found 1/23$488
This Iberia deal was found by Cheapflights users on 1/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/24:50 pmBOS - BIO
1 stop18h 05mIberia
Tue 2/187:10 amBIO - BOS
1 stop20h 30mIberia
Deal found 1/22$496
This American Airlines deal was found by Cheapflights users on 1/22. 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.
Sun 2/24:50 pmBOS - BIO
1 stop18h 05mAmerican Airlines
Tue 2/186:45 amBIO - BOS
1 stop18h 35mAmerican Airlines
Deal found 1/22$498
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2210:40 pmBOS - BIO
2 stops17h 35mVueling
Sat 3/17:10 amBIO - BOS
1 stop19h 45mVueling
Deal found 1/23$544
This KLM deal was found by Cheapflights users on 1/22. 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.
Fri 2/218:35 pmBOS - BIO
1 stop14h 45mKLM
Fri 2/286:50 amBIO - BOS
1 stop18h 25mKLM
Deal found 1/22$553
This Air Canada deal was found by Cheapflights users on 1/22. 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 9/243:20 pmBOS - BIO
2 stops20h 30mAir Canada
Thu 10/26:45 amBIO - BOS
2 stops13h 46mAir Canada
Deal found 1/22$594
This United Airlines deal was found by Cheapflights users on 1/22. 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 4/167:43 amBOS - BIO
2 stops33h 42mUnited Airlines
Tue 4/296:45 amBIO - BOS
2 stops14h 12mUnited Airlines
Deal found 1/22$599
This Lufthansa deal was found by Cheapflights users on 1/23. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/308:05 pmBOS - BIO
2 stops20h 45mLufthansa
Mon 5/126:35 pmBIO - BOS
1 stop29h 05mLufthansa
Deal found 1/23$613
This SWISS deal was found by Cheapflights users on 1/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/229:40 pmBOS - BIO
1 stop28h 00mSWISS
Thu 8/78:25 amBIO - BOS
1 stop13h 00mSWISS
Deal found 1/21$645
This Turkish Airlines deal was found by Cheapflights users on 1/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/79:35 pmBOS - BIO
1 stop31h 30mTurkish Airlines
Sat 5/3112:05 pmBIO - BOS
1 stop37h 35mTurkish Airlines
Deal found 1/22$701
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Thu 7/248:05 pmBOS - BIO
2 stops14h 00mBrussels Airlines
Tue 8/54:55 pmBIO - BOS
2 stops33h 15mBrussels Airlines
Deal found 1/21$775
This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/22. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/24:40 pmBOS - BIO
2 stops19h 55mTAP AIR PORTUGAL
Tue 2/186:40 pmBIO - BOS
2 stops35h 38mTAP AIR PORTUGAL
Deal found 1/22$815

Find flights from Boston to Bilbao within your budget

Customize your flight search to find flights from Boston 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 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 2/2

8:35 pm-10:20 pm

1 stop19h 45m

Bilbao

Tue 2/18

5:20 pm-1:35 pm

1 stop26h 15m

$488

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 2/2

1:06 pm-12:50 pm

2 stops17h 44m

Bilbao

Tue 2/18

8:55 am-9:40 pm

1 stop18h 45m

$500

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 2/2

3:40 pm-11:55 am

2 stops14h 15m

Bilbao

Tue 2/18

6:45 am-10:37 pm

2 stops21h 52m

$502

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 3/5

8:40 pm-6:05 pm

1 stop15h 25m

Bilbao

Mon 3/10

6:45 pm-7:35 pm

1 stop29h 50m

$513

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 2/22

10:40 pm-10:15 pm

2 stops17h 35m

Bilbao

Sat 3/1

7:10 am-8:55 pm

1 stop19h 45m

$544

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 2/22

7:39 pm-10:55 am

2 stops33h 16m

Bilbao

Sat 3/1

1:15 pm-8:44 pm

2 stops37h 29m

$631

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Thu 5/8

5:50 pm-4:05 pm

2 stops16h 15m

Bilbao

Mon 5/12

4:55 pm-8:10 pm

2 stops33h 15m

$635

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 7/22

9:40 pm-7:40 am

1 stop28h 00m

Bilbao

Thu 7/31

8:25 am-3:25 pm

1 stop13h 00m

$665

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 6/18

9:20 pm-11:15 pm

1 stop19h 55m

Bilbao

Thu 6/26

6:45 am-7:50 pm

1 stop19h 05m

$706

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 5/7

9:35 pm-11:05 am

1 stop31h 30m

Bilbao

Sat 5/31

12:05 pm-7:40 pm

1 stop37h 35m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 24 results
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Compare providers for flights from Boston 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 Boston to Bilbao in January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 Boston-Bilbao flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Bilbao flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Bilbao flights, Cheapflights users trust AranGrant the most. AranGrant 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 Boston-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 Boston to Bilbao

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

Travel insights for flights from Boston to Bilbao

Get recent, data-driven insights about flights from Boston to Bilbao including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boston to Bilbao?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Bilbao. Price data was last updated on January 17, 2025.

The price you pay for your flight from Boston to Bilbao may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Boston to Bilbao (average of $541). Flying from Boston to Bilbao in June is currently the most expensive (average of $1,178). 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 BOS to BIO?

Find hourly flight availability from Boston 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 January 23, 2025.

It’s typically best to fly out from Boston to Bilbao in the morning. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 January 23, 2025.
To help decide which airline to fly from Boston to Bilbao, see what other customers have to say about Iberia and Air Canada. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,338 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,338 reviews
KLM
7.8
Good
1,338 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

United Airlines
7.4
Good
8,971 reviews
KLM
7.8
Good
1,338 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Turkish Airlines
7.3
Good
3,926 reviews
KLM
7.8
Good
1,338 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,338 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Vueling
7.1
Good
1,181 reviews
KLM
7.8
Good
1,338 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Boston 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 Boston to Bilbao round-trip?

    According to our current data, Iberia ($496), American Airlines ($498), and Air Canada ($500) offers the cheapest pricing from Boston to Bilbao. Iberia is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Bilbao one-way?

    To fly one-way, consider booking your trip with Vueling, which is currently one of the cheapest options available, starting at $254. TAP AIR PORTUGAL flights start at $375 while deals on KLM start at $420 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Bilbao (average of $541). Flying from Boston to Bilbao in June is currently the most expensive (average of $1,178). There are