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$322+ Cheap flights from Massachusetts 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BIO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Massachusetts to Bilbao

Cheapest flights from Massachusetts to Bilbao
Explore the most affordable flight options available from Massachusetts to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:20 pmBOS - BIO
2 stops19h 45mMultiple Airlines
Mon 12/298:00 amBIO - BOS
1 stop18h 00mMultiple Airlines
Deal found 12/15$998
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:20 pmBOS - BIO
2 stops19h 45mUnited Airlines
Mon 12/296:45 amBIO - BOS
2 stops19h 15mUnited Airlines
Deal found 12/15$1,039
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:50 pmBOS - BIO
1 stop17h 20mSWISS
Mon 12/298:00 amBIO - BOS
1 stop18h 00mSWISS
Deal found 12/15$1,143
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/197:44 pmBOS - BIO
2 stops35h 06mUnited Airlines
Sun 1/411:35 amBIO - BOS
2 stops54h 37mUnited Airlines
Deal found 12/16$2,473
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:40 pmBOS - BIO
1 stop15h 25mLufthansa
Sat 1/312:50 pmBIO - BOS
2 stops17h 04mLufthansa
Deal found 12/17$2,502
This oojo deal was found by Cheapflights users on 12/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:05 pmBOS - BIO
1 stop11h 20mTAP AIR PORTUGAL
Sun 1/46:40 pmBIO - BOS
1 stop25h 55mTAP AIR PORTUGAL
Deal found 12/16$2,671
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:20 pmBOS - BIO
1 stop13h 40mLufthansa
Sat 1/37:25 amBIO - BOS
2 stops22h 29mLufthansa
Deal found 12/17$2,751

Find flight deals from Massachusetts to Bilbao

Keep the following information in mind while searching for Massachusetts to Bilbao flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$353
(Kiwi.com)

One-way from

$322
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$716
Provider with most accurate pricing for Boston Logan Intl-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Bilbao flights.
Search Deals
From Massachusetts to Bilbao
Search Deals
One-way flight from Massachusetts to Bilbao
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 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 Massachusetts 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 December 18, 2025.
Use the filters below to find and compare flights from Massachusetts to Bilbao that are best for you.

Fly from

Massachusetts

Fly to

Bilbao

Route

Depart

Return

Price

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 2/2

4:45 pm-8:30 am

1 stop9h 45m

Bilbao

Mon 2/9

9:35 pm-3:15 pm

1 stop23h 40m

$382

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 3/10

9:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Mon 3/16

6:50 pm-7:35 pm

1 stop29h 45m

$393

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 3/23

9:40 pm-11:05 pm

1 stop20h 25m

Bilbao

Wed 4/1

7:15 am-1:06 am

2 stops23h 51m

$396

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 3/22

9:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Wed 4/1

7:15 am-1:06 am

2 stops23h 51m

$396

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 3/23

9:40 pm-11:05 pm

1 stop20h 25m

Bilbao

Tue 3/31

6:50 am-12:11 pm

2 stops35h 21m

$401

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 3/10

5:30 am-12:50 pm

2 stops26h 20m

Bilbao

Mon 3/16

6:50 pm-7:35 pm

1 stop29h 45m

$404

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 2/2

3:35 pm-12:50 pm

2 stops15h 15m

Bilbao

Mon 2/9

5:00 pm-2:52 pm

2 stops27h 52m

$411

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 3/25

9:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Wed 4/1

7:15 am-1:06 am

2 stops23h 51m

$421

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 2/15

5:10 pm-12:50 pm

2 stops13h 40m

Bilbao

Wed 3/4

9:35 pm-3:15 pm

1 stop23h 40m

$423

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Fri 1/30

4:46 pm-11:20 pm

2 stops24h 34m

Bilbao

Tue 2/3

11:35 am-9:29 pm

2 stops39h 54m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 19 results
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Best time to book a flight from Massachusetts to Bilbao

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

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

Currently, October is the cheapest month in which you can book a flight from Massachusetts to Bilbao (average of $361). Flying from Massachusetts to Bilbao in July is currently the most expensive (average of $578). 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 MA to BIO?

Find hourly flight availability from Massachusetts 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 December 18, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Massachusetts to Bilbao by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Bilbao from Massachusetts?

    Located just 3.0 mi from the city center, Bilbao (BIO) is the airport most travelers will use when flying to Bilbao from Massachusetts.

  • How long is the flight from Massachusetts to Bilbao?

    For as low as $393, Lufthansa can have you in Bilbao from Massachusetts in 19h 15m. The distance from Massachusetts to Bilbao is about 3348 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for LEVEL. According to our data, you can fly for as low as $256. Users have also found prices from $320 and $365 on Delta and Iberia, respectively.

  • What are the most popular routes from Massachusetts to Bilbao?

    Most travelers choose Boston Logan Intl - Bilbao, Hartford Bradley Intl - Bilbao or Provincetown - Bilbao when deciding on the best route from Massachusetts to Bilbao.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Massachusetts to Bilbao (average of $361). Flying from Massachusetts to Bilbao in July is currently the most expensive (average of $578). 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

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Alternative routes for Massachusetts to Bilbao

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Top 7 airlines flying from Massachusetts to Bilbao

Discover the top 7 airlines that operate flights from Massachusetts 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$391Average$663FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$393Average$703FlexibilityNo cancel feeOn-time69%
DeltaCheapest$424Average$741FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$439Average$657FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$453Average$761FlexibilityNo cancel feeOn-time76%
KLMCheapest$516Average$768FlexibilityNo cancel feeOn-time75%
LEVELCheapest$523Average$753FlexibilityNo cancel feeOn-timeN/A

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