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Bilbao

$261+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BIO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Massachusetts to Bilbao

Keep the following information in mind while searching for Massachusetts to Bilbao flight deals. Data was last updated July 31, 2025.

Round-trip from

$370
(Finnair)

One-way from

$261
(LEVEL)

Popular in

December

Cheapest in

February

Average price

$728
From Massachusetts to Bilbao
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One-way flight from Massachusetts to Bilbao
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Highest demand for flights based on searches. 7% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/249:40 pmBOS - BIO
1 stop16h 30mSWISS
Thu 10/29:00 pmBIO - BOS
1 stop24h 25mSWISS
Deal found 7/29$350
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1911:55 pmBOS - BIO
1 stop13h 00mIberia
Fri 10/319:15 amBIO - BOS
1 stop12h 00mIberia
Deal found 7/29$366
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:05 pmBOS - BIO
1 stop21h 05mMultiple Airlines
Thu 10/26:45 amBIO - BOS
2 stops33h 10mMultiple Airlines
Deal found 7/29$367
This Finnair deal was found by Cheapflights users on 7/31. 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.
Wed 9/249:20 pmBOS - BIO
1 stop19h 55mFinnair
Thu 10/26:45 amBIO - BOS
1 stop19h 05mFinnair
Deal found 7/31$370
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 9/28:05 pmBOS - BIO
1 stop21h 20mLufthansa
Fri 9/2611:50 amBIO - BOS
1 stop11h 50mLufthansa
Deal found 7/30$372
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:30 pmBOS - BIO
2 stops39h 35mAir Canada
Fri 10/317:25 amBIO - BOS
2 stops37h 32mAir Canada
Deal found 7/29$395
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 10/72:36 pmBOS - BIO
2 stops19h 29mUnited Airlines
Fri 10/317:25 amBIO - BOS
2 stops37h 32mUnited Airlines
Deal found 7/30$399
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:45 pmBOS - BIO
1 stop13h 10mTAP AIR PORTUGAL
Sat 11/2212:10 pmBIO - BOS
1 stop14h 00mTAP AIR PORTUGAL
Deal found 7/29$447
This Air France deal was found by Cheapflights users on 7/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:20 pmBOS - BIO
1 stop11h 05mAir France
Sat 9/2711:05 amBIO - BOS
1 stop15h 15mAir France
Deal found 7/29$459
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/142:57 pmBDL - BIO
2 stops20h 53mUnited Airlines
Sun 9/216:45 amBIO - BDL
2 stops22h 59mUnited Airlines
Deal found 7/31$735

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 July 31, 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

Wed 9/24

9:40 pm-8:10 pm

1 stop16h 30m

Bilbao

Thu 10/2

9:00 pm-3:25 pm

1 stop24h 25m

$350

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 10/19

11:55 pm-6:55 pm

1 stop13h 00m

Bilbao

Fri 10/31

9:15 am-4:15 pm

1 stop12h 00m

$366

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 9/24

5:05 pm-8:10 pm

1 stop21h 05m

Bilbao

Thu 10/2

6:45 am-9:55 am

2 stops33h 10m

$367

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 9/24

9:20 pm-11:15 pm

1 stop19h 55m

Bilbao

Thu 10/2

6:45 am-7:50 pm

1 stop19h 05m

$370

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 9/2

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Fri 9/26

11:50 am-5:40 pm

1 stop11h 50m

$372

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 10/19

6:30 pm-4:05 pm

2 stops39h 35m

Bilbao

Fri 10/31

7:25 am-3:57 pm

2 stops37h 32m

$395

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 10/7

2:36 pm-4:05 pm

2 stops19h 29m

Bilbao

Fri 10/31

7:25 am-3:57 pm

2 stops37h 32m

$399

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 9/14

1:00 pm-8:30 am

2 stops13h 30m

Bilbao

Fri 9/26

9:15 am-6:49 pm

2 stops15h 34m

$408

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 9/15

5:20 pm-10:25 am

1 stop11h 05m

Bilbao

Sat 9/27

11:05 am-8:20 pm

1 stop15h 15m

$459

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Sun 9/14

2:57 pm-5:50 pm

2 stops20h 53m

Bilbao

Sun 9/21

6:45 am-11:44 pm

2 stops22h 59m

$735

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 17 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, January is the cheapest month in which you can book a flight from Massachusetts to Bilbao (average of $541). Flying from Massachusetts to Bilbao in June is currently the most expensive (average of $1,135). 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Massachusetts to Bilbao as you normally would.

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 July 31, 2025.
Get a feel of what it's like to fly with Delta, Finnair, and United Airlines from Massachusetts to Bilbao by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
9,851 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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 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.

  • 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 $261. Users have also found prices from $289 and $314 on TAP AIR PORTUGAL and Aer Lingus, 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, January is the cheapest month in which you can book a flight from Massachusetts to Bilbao (average of $541). Flying from Massachusetts to Bilbao in June is currently the most expensive (average of $1,135). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Massachusetts to Bilbao

Discover the top 8 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$418Average$753FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$424Average$708FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$428Average$695FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$439Average$657FlexibilityNo cancel feeOn-time71%
IberiaCheapest$523Average$699FlexibilityNo cancel feeOn-time77%
KLMCheapest$532Average$891FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$574Average$787FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$616Average$712FlexibilityNo cancel feeOn-time69%

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