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$299+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — BOS
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheapflights Tip: The best prices from Bilbao to Boston Logan Intl are usually found in January or March, booked 65 days in advance, depart on a Wednesday or Monday and return on a Sunday

Cheap 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 December 15, 2025.

This Iberia deal was found by Cheapflights users on 12/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:10 amBIO - BOS
1 stop19h 45mIberia
Tue 12/3010:40 pmBOS - BIO
1 stop29h 45mIberia
Deal found 12/13$812
This Delta deal was found by Cheapflights users on 12/13. 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.
Thu 12/2511:55 amBIO - BOS
1 stop31h 25mDelta
Tue 12/307:10 pmBOS - BIO
1 stop10h 10mDelta
Deal found 12/13$837
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:15 pmBIO - BOS
2 stops16h 14mDelta
Tue 12/306:30 pmBOS - BIO
1 stop16h 50mDelta
Deal found 12/14$966
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/15. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:20 pmBIO - BOS
2 stops34h 56mTAP AIR PORTUGAL
Tue 12/307:32 pmBOS - BIO
2 stops33h 53mTAP AIR PORTUGAL
Deal found 12/15$1,073
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/226:45 amBIO - BOS
2 stops17h 27mUnited Airlines
Tue 12/307:44 pmBOS - BIO
2 stops40h 21mUnited Airlines
Deal found 12/14$1,074

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$470
(Expedia)

One-way from

$299
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$620
Provider with most accurate pricing for Bilbao-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-Boston Logan Intl flights.
Search Deals
From Bilbao to Boston Logan Intl
Search Deals
One-way flight from Bilbao to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 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

Tue 2/3

11:25 am-8:55 pm

1 stop15h 30m

Boston Logan Intl

Mon 2/9

10:40 pm-2:35 pm

1 stop9h 55m

$470

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Sat 1/17

9:15 am-3:15 pm

1 stop12h 00m

Boston Logan Intl

Sat 1/24

4:45 pm-8:30 am

1 stop9h 45m

$509

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Sat 1/17

9:15 am-3:15 pm

1 stop12h 00m

Boston Logan Intl

Sat 1/24

12:06 pm-8:30 am

2 stops14h 24m

$509

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Tue 2/3

6:45 am-10:56 pm

2 stops22h 11m

Boston Logan Intl

Mon 2/9

11:10 am-11:15 pm

2 stops30h 05m

$512

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Tue 4/28

1:10 pm-9:05 pm

1 stop13h 55m

Boston Logan Intl

Tue 5/19

9:20 pm-11:15 pm

1 stop19h 55m

$529

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 1/15

6:50 am-6:30 pm

2 stops17h 40m

Boston Logan Intl

Thu 1/29

10:05 am-11:30 am

2 stops19h 25m

$561

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Mon 6/8

7:25 pm-9:05 pm

1 stop31h 40m

Boston Logan Intl

Sun 6/14

11:45 pm-10:15 am

1 stop28h 30m

$564

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 2/26

12:10 pm-8:10 pm

1 stop14h 00m

Boston Logan Intl

Mon 3/2

6:05 pm-5:55 pm

1 stop17h 50m

$574

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 2/26

6:45 am-1:35 pm

1 stop12h 50m

Boston Logan Intl

Mon 3/2

9:30 am-10:50 am

2 stops19h 20m

$577

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Sun 1/25

12:55 pm-8:55 pm

1 stop14h 00m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 14 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 December.
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 Bilbao-Boston flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bilbao-Boston flight deals on Cheapflights vs. eDreams >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 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 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 December 12, 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 65 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, September is the cheapest month in which you can book a flight from Bilbao to Boston (average of $227). Flying from Bilbao to Boston in July is currently the most expensive (average of $606). 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.

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

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 December 15, 2025.
See what other customers who have flown with Iberia from Bilbao to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Iberia
7.0
Good
3,051 reviews

Overall

7.0

Boarding

7.1

Food

6.3

Entertainment

6.6

Crew

7.7

Comfort

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Nov 2025

MAD - ORD

Worst customer service, at a check in lady could not find our reservation at all. End it up as buying brand new ticket to be able to fly with other family members. Very disappointed.
Iberia
7.0
Good
3,051 reviews
Iberia
7.0
Good
3,051 reviews

Overall

7.0

Boarding

7.1

Food

6.3

Entertainment

6.6

Crew

7.7

Comfort

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Nov 2025

MAD - ORD

Worst customer service, at a check in lady could not find our reservation at all. End it up as buying brand new ticket to be able to fly with other family members. Very disappointed.

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.

  • How long is the flight from Bilbao to Boston?

    Airlines like Iberia and American Airlines fly from Bilbao to Boston in about 12h. The time it takes to get you to your destination can typically vary by up to 3h 30m. There are 3348 mi between Bilbao and Boston. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Bilbao to Boston round-trip?

    Cheapflights users have booked flights from Bilbao to Boston round-trip from $473. Users have found that Iberia is 23% cheaper than the other options available to this destination.

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

    $215 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on Iberia and TAP AIR PORTUGAL, with prices starting from $391 and $403, 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, September is the cheapest month in which you can book a flight from Bilbao to Boston (average of $227). Flying from Bilbao to Boston in July is currently the most expensive (average of $606). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Brockton
Cranston
Lincoln
Lowell
Smithfield
Peabody
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea

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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$473Average$616FlexibilityNo cancel feeOn-time77%

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