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$303+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — BOS
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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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 enero 26, 2026.

This American Airlines deal was found by Cheapflights users on 1/25. 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.
jue. 2/56:45 am
BIO
-
BOS
1 stop14h 30m
American Airlines
mié. 2/184:45 pm
BOS
-
BIO
1 stop9h 45m
American Airlines
Deal found 1/25$407
This Rumbo deal was found by Cheapflights users on 1/26. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/126:45 am
BIO
-
BOS
1 stop14h 30m
Iberia
mié. 2/184:45 pm
BOS
-
BIO
1 stop9h 45m
Iberia
Deal found 1/26$422
This Expedia deal was found by Cheapflights users on 1/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/29:35 pm
BIO
-
BOS
1 stop23h 40m
Iberia
lun. 2/94:45 pm
BOS
-
BIO
1 stop24h 30m
Iberia
Deal found 1/26$427
This Iberia deal was found by Cheapflights users on 1/26. 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.
jue. 2/59:35 pm
BIO
-
BOS
1 stop28h 15m
Iberia
mié. 2/184:45 pm
BOS
-
BIO
1 stop9h 45m
Iberia
Deal found 1/26$436
This Expedia deal was found by Cheapflights users on 1/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/116:45 am
BIO
-
BOS
1 stop14h 30m
Iberia
mié. 3/183:49 pm
BOS
-
BIO
2 stops16h 11m
Iberia
Deal found 1/25$437
This lol.travel deal was found by Cheapflights users on 1/25. 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.
mié. 3/116:45 am
BIO
-
BOS
1 stop19h 05m
Finnair
mié. 3/1810:20 pm
BOS
-
BIO
1 stop19h 55m
Finnair
Deal found 1/25$444
This Iberia deal was found by Cheapflights users on 1/25. 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.
jue. 2/56:45 am
BIO
-
BOS
1 stop14h 30m
Iberia
lun. 2/910:40 pm
BOS
-
BIO
1 stop29h 45m
Iberia
Deal found 1/25$451
This American Airlines deal was found by Cheapflights users on 1/26. 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.
mié. 4/86:45 am
BIO
-
BOS
1 stop15h 25m
American Airlines
mié. 4/225:09 pm
BOS
-
BIO
2 stops13h 36m
American Airlines
Deal found 1/26$467
This Rumbo deal was found by Cheapflights users on 1/26. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/126:45 am
BIO
-
BOS
1 stop14h 30m
Iberia
lun. 3/1611:40 pm
BOS
-
BIO
2 stops12h 15m
Iberia
Deal found 1/26$474

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 enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$407
(American Airlines)

One-way from

$303
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$508
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. 14% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 enero 26, 2026.
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

jue. 2/5

6:45 am-3:15 pm

1 stop14h 30m

Boston Logan Intl

mié. 2/18

4:45 pm-8:30 am

1 stop9h 45m

$407

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 2/12

6:45 am-3:15 pm

1 stop14h 30m

Boston Logan Intl

mié. 2/18

4:45 pm-8:30 am

1 stop9h 45m

$422

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 2/5

9:35 pm-7:50 pm

1 stop28h 15m

Boston Logan Intl

mié. 2/18

4:45 pm-8:30 am

1 stop9h 45m

$436

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 2/5

6:45 am-3:15 pm

1 stop14h 30m

Boston Logan Intl

lun. 2/9

10:40 pm-10:25 am

1 stop29h 45m

$451

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 3/12

6:45 am-4:15 pm

1 stop14h 30m

Boston Logan Intl

lun. 3/16

11:40 pm-4:55 pm

2 stops12h 15m

$474

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 4/9

1:20 pm-9:05 pm

1 stop13h 45m

Boston Logan Intl

mié. 4/22

10:50 pm-5:35 pm

1 stop12h 45m

$487

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 4/16

3:55 pm-9:05 pm

1 stop11h 10m

Boston Logan Intl

jue. 4/30

10:50 pm-6:20 pm

1 stop13h 30m

$487

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

jue. 2/5

6:45 am-10:56 pm

2 stops22h 11m

Boston Logan Intl

mié. 2/18

4:45 pm-8:30 am

1 stop9h 45m

$490

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

dom. 2/15

9:05 pm-8:55 pm

2 stops29h 50m

Boston Logan Intl

lun. 3/2

10:40 pm-10:55 pm

1 stop18h 15m

$502

BilbaoBoston

BIO - BOS

BIOBOS

Bilbao

mié. 4/8

12:25 pm-7:55 pm

2 stops13h 30m

Boston Logan Intl

mié. 4/22

10:30 pm-11:30 am

2 stops31h 00m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bilbao-Boston flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

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 $638). 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 enero 26, 2026.
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
3,098 reviews

Crew

7.7

Boarding

7.2

Food

6.4

Entertainment

6.6

Overall

7.0

Comfort

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.
Iberia
7.0
Good
3,098 reviews
Iberia
7.0
Good
3,098 reviews

Crew

7.7

Boarding

7.2

Food

6.4

Entertainment

6.6

Overall

7.0

Comfort

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.

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 American Airlines and Iberia fly from Bilbao to Boston in about 14h 30m. The time it takes to get you to your destination can typically vary by up to . There are 3348 mi between Bilbao and Boston.

  • 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 $436. Users have found that Iberia is 32% 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 $638). 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
Medford
Cambridge
Hampton Beach
Watertown
Seekonk
Brockton
Warwick
Seabrook
Cranston
Lincoln
Smithfield
Peabody
Quincy
York Beach
Londonderry
Swansea
Old Orchard Beach
Waltham
Lowell
Chelsea

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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$436Average$616FlexibilityNo cancel feeOn-time77%

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