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$400+ Cheap flights from Bilbao (BIO) to Boston (BOS)

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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — BOS
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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

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Cheapflights Tip: The best prices from Bilbao to Boston Logan Intl are usually found in September or January, booked 30 days in advance, depart on a Wednesday or Monday and return on a Sunday

Cheap flight deals from Bilbao to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to Boston (BOS). 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 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$404
(Iberia)

One-way from

$400
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$654
Provider with most accurate pricing for Bilbao-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Bilbao-Boston Logan Intl flights.
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From Bilbao to Boston Logan Intl
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One-way flight from Bilbao to Boston Logan Intl
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Highest demand for flights based on searches. 5% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Bilbao to Boston

Cheapest flights from Bilbao to Boston
Explore the most affordable flight options available from Bilbao to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Iberia deal was found by Cheapflights users on 4/29. 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.
Mon 5/121:30 pmBIO - BOS
1 stop12h 20mIberia
Mon 5/269:20 pmBOS - BIO
1 stop9h 25mIberia
Deal found 4/29$404
This lol.travel deal was found by Cheapflights users on 4/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:45 amBIO - BOS
1 stop19h 05mFinnair
Sat 9/209:20 pmBOS - BIO
1 stop19h 55mFinnair
Deal found 4/28$414
This Finnair deal was found by Cheapflights users on 4/29. 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 10/286:45 amBIO - BOS
1 stop14h 30mMultiple Airlines
Sun 11/29:20 pmBOS - BIO
1 stop9h 30mMultiple Airlines
Deal found 4/29$418
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 9/49:15 amBIO - BOS
2 stops15h 36mAmerican Airlines
Fri 9/129:20 pmBOS - BIO
1 stop9h 25mAmerican Airlines
Deal found 4/28$426
This TAP AIR PORTUGAL deal was found by Cheapflights users on 4/29. 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.
Fri 12/196:40 pmBIO - BOS
1 stop31h 25mTAP AIR PORTUGAL
Fri 1/96:10 pmBOS - BIO
1 stop11h 15mTAP AIR PORTUGAL
Deal found 4/29$554
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 6/212:00 pmBIO - BOS
2 stops16h 33mDelta
Mon 6/910:00 amBOS - BIO
2 stops18h 25mDelta
Deal found 4/28$585
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Tue 10/286:45 amBIO - BOS
2 stops16h 57mAir Canada
Sun 11/210:20 amBOS - BIO
2 stops23h 50mAir Canada
Deal found 4/28$630
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1211:50 amBIO - BOS
1 stop11h 50mLufthansa
Thu 6/1910:00 pmBOS - BIO
1 stop14h 20mLufthansa
Deal found 4/28$798
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/2611:50 amBIO - BOS
1 stop11h 50mUnited Airlines
Sun 6/158:05 pmBOS - BIO
1 stop15h 45mUnited Airlines
Deal found 4/28$807
This SWISS deal was found by Cheapflights users on 4/28. 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.
Mon 5/2611:50 amBIO - BOS
2 stops38h 05mSWISS
Sun 6/159:40 pmBOS - BIO
2 stops38h 10mSWISS
Deal found 4/28$863

Cheapflights Fare Finder

Customize your flight search to find flights from Bilbao to Boston 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 29, 2025.
Use the filters below to find and compare flights from Bilbao to Boston that are best for you.

Fly from

Bilbao

Fly to

Boston

Route

Depart

Return

Price

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Mon 5/12

1:30 pm-7:50 pm

1 stop12h 20m

Boston Logan Intl

Mon 5/26

9:20 pm-12:45 pm

1 stop9h 25m

$404

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Wed 9/10

6:45 am-7:50 pm

1 stop19h 05m

Boston Logan Intl

Sat 9/20

9:20 pm-11:15 pm

1 stop19h 55m

$414

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 9/4

9:15 am-6:51 pm

2 stops15h 36m

Boston Logan Intl

Fri 9/12

9:20 pm-12:45 pm

1 stop9h 25m

$426

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Mon 6/2

12:00 pm-10:33 pm

2 stops16h 33m

Boston Logan Intl

Mon 6/9

10:00 am-10:25 am

2 stops18h 25m

$585

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 6/12

11:50 am-5:40 pm

1 stop11h 50m

Boston Logan Intl

Thu 6/19

10:00 pm-6:20 pm

1 stop14h 20m

$798

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Mon 5/12

9:05 pm-3:40 pm

3 stops24h 35m

Boston Logan Intl

Mon 5/26

3:20 pm-2:00 pm

2 stops16h 40m

$804

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Mon 5/26

11:50 am-5:40 pm

1 stop11h 50m

Boston Logan Intl

Sun 6/15

8:05 pm-5:50 pm

1 stop15h 45m

$807

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Mon 5/26

11:50 am-7:55 pm

2 stops38h 05m

Boston Logan Intl

Sun 6/15

9:40 pm-5:50 pm

2 stops38h 10m

$863

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Sun 8/17

7:00 am-9:15 pm

1 stop20h 15m

$400

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Sat 6/21

6:35 pm-8:40 pm

2 stops32h 05m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 15 results
1
2

Compare providers for flights from Bilbao to Boston

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 Bilbao to Boston in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice 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 Bilbao-Boston flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Bilbao-Boston flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Bilbao-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-Boston 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 Bilbao-Boston 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 Bilbao to Boston

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

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

Use this chart to determine the optimal time to book a round-trip flight from Bilbao to Boston. Price data was last updated on April 25, 2025.

The price you pay for your flight from Bilbao to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 29 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 Bilbao to Boston?

Currently, January is the cheapest month in which you can book a flight from Bilbao to Boston (average of $218). Flying from Bilbao to Boston in July is currently the most expensive (average of $311). 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.

Rainfall in Boston by month

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

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

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

If weather is an important factor for your trip to Boston, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated April 29, 2025.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Azores Airlines
7.6
Good
66 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

    Cheapflights users have booked flights from Bilbao to Boston round-trip from $404. Other airlines that can offer you cheap pricing are Finnair, from $414, and American Airlines, from $426. Users have found that Iberia is 27% cheaper than the other options available to this destination.

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

    $400 is the cheapest one-way deal found within the past few days, from Vueling. You may also be able to find cheap deals on TAP AIR PORTUGAL and Azores Airlines, with prices starting from $516 and $541, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Bilbao to Boston (average of $218). Flying from Bilbao to Boston in July is currently the most expensive (average of $311). 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

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Marlborough
Warwick
Cambridge
Waltham
Framingham
Chestnut Hill
Randolph
Brockton
Lowell
Woburn
Somerville
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Lincoln
Salem
Chelsea
Seabrook

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bilbao to Boston

See prices for flight routes from nearby airports that may be better suited for you.
San Sebastian to Boston flights

Top airline flying from Bilbao to Boston

Discover the top airline that operate flights from Bilbao to Boston. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$398Average$750FlexibilityNo cancel feeOn-time75%

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