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$454+ Cheap flights from Bilbao (BIO) to Boston (BOS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$454
(Iberia)

Popular in

August

Cheapest in

September

Average price

$707
From Bilbao to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Iberia deal was found by Cheapflights users on 6/11. 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.
Thu 9/47:00 amBIO - BOS
1 stop20h 15mIberia
Fri 9/124:30 pmBOS - BIO
1 stop18h 25mIberia
Deal found 6/11$454
This American Airlines deal was found by Cheapflights users on 6/11. 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 9/46:45 amBIO - BOS
1 stop19h 05mAmerican Airlines
Fri 9/121:00 pmBOS - BIO
2 stops13h 30mAmerican Airlines
Deal found 6/11$479
This Booking.com deal was found by Cheapflights users on 6/10. 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 10/112:25 pmBIO - BOS
2 stops14h 20mTAP AIR PORTUGAL
Sun 10/56:10 pmBOS - BIO
1 stop11h 30mTAP AIR PORTUGAL
Deal found 6/10$489
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Sun 9/2110:50 pmBIO - BOS
1 stop28h 25mMultiple Airlines
Thu 9/254:15 pmBOS - BIO
2 stops44h 20mMultiple Airlines
Deal found 6/12$504
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/246:45 amBIO - BOS
2 stops17h 10mUnited Airlines
Sun 11/27:38 pmBOS - BIO
2 stops35h 12mUnited Airlines
Deal found 6/11$535
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Mon 7/216:45 amBIO - BOS
1 stop19h 25mLufthansa
Tue 8/55:50 pmBOS - BIO
1 stop18h 30mLufthansa
Deal found 6/11$638
This SWISS deal was found by Cheapflights users on 6/12. 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 7/159:00 pmBIO - BOS
1 stop28h 55mSWISS
Wed 7/305:05 pmBOS - BIO
1 stop18h 10mSWISS
Deal found 6/12$653
This KLM deal was found by Cheapflights users on 6/12. 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 7/117:10 amBIO - BOS
1 stop12h 25mKLM
Sun 7/2710:20 pmBOS - BIO
1 stop17h 40mKLM
Deal found 6/12$732
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Fri 7/116:45 amBIO - BOS
2 stops33h 10mAir Canada
Sun 7/276:40 pmBOS - BIO
2 stops39h 25mAir Canada
Deal found 6/12$758
This FlightHub deal was found by Cheapflights users on 6/12. 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 7/176:10 pmBIO - BOS
1 stop30h 35mAer Lingus
Wed 7/305:05 pmBOS - BIO
2 stops18h 25mAer Lingus
Deal found 6/12$957
This Finnair deal was found by Cheapflights users on 6/10. 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 7/156:45 amBIO - BOS
2 stops22h 49mFinnair
Sat 9/1311:00 pmBOS - BIO
2 stops40h 55mFinnair
Deal found 6/10$1,353
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Fri 7/188:40 pmBIO - BOS
1 stop24h 55mScandinavian Airlines
Thu 9/45:40 pmBOS - BIO
1 stop20h 10mScandinavian Airlines
Deal found 6/10$1,358

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 June 12, 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

Thu 9/4

7:00 am-9:15 pm

1 stop20h 15m

Boston Logan Intl

Fri 9/12

4:30 pm-4:55 pm

1 stop18h 25m

$454

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 9/4

6:45 am-7:50 pm

1 stop19h 05m

Boston Logan Intl

Fri 9/12

1:00 pm-8:30 am

2 stops13h 30m

$479

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Wed 10/1

12:25 pm-8:45 pm

2 stops14h 20m

Boston Logan Intl

Sun 10/5

6:10 pm-11:40 am

1 stop11h 30m

$489

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Sun 9/21

10:50 pm-9:15 pm

1 stop28h 25m

Boston Logan Intl

Thu 9/25

4:15 pm-6:35 pm

2 stops44h 20m

$504

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Fri 10/24

6:45 am-5:55 pm

2 stops17h 10m

Boston Logan Intl

Sun 11/2

7:38 pm-12:50 pm

2 stops35h 12m

$535

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 7/17

6:45 am-8:10 pm

1 stop19h 25m

Boston Logan Intl

Mon 7/28

8:05 pm-11:25 pm

1 stop21h 20m

$633

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Tue 7/15

9:00 pm-7:55 pm

1 stop28h 55m

Boston Logan Intl

Wed 7/30

5:05 pm-5:15 pm

1 stop18h 10m

$653

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Fri 7/11

7:10 am-1:35 pm

1 stop12h 25m

Boston Logan Intl

Sun 7/27

10:20 pm-10:00 pm

1 stop17h 40m

$732

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Fri 7/11

6:45 am-9:55 am

2 stops33h 10m

Boston Logan Intl

Sun 7/27

6:40 pm-4:05 pm

2 stops39h 25m

$758

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

Thu 7/17

6:10 pm-6:45 pm

1 stop30h 35m

Boston Logan Intl

Wed 7/30

5:05 pm-5:30 pm

2 stops18h 25m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 25 results
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2
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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

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 June is currently the most expensive (average of $306). 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 June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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!
Azores Airlines
7.6
Good
66 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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 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 $454. Other airlines that can offer you cheap pricing are American Airlines, from $479, and TAP AIR PORTUGAL, from $489. Users have found that Iberia is 19% cheaper than the other options available to this destination.

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

    $536 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 Iberia, with prices starting from $592 and $611, 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 June is currently the most expensive (average of $306). 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
Cambridge
Medford
Watertown
Warwick
Waltham
Framingham
Seabrook
Cranston
Randolph
Chestnut Hill
Lowell
Chelsea
Marlborough
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea

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