Which layover airport offers the lowest fares from Boston to Bilbao?

Flights via Munich (MUC) offer the lowest average round-trip price of $371.

Which layover airport has the shortest connection time from Boston to Bilbao?

Paris (CDG) has the shortest average layover time for this route: 1h 30m.

Which airport is the most popular layover for flights between Boston and Bilbao?

Madrid (MAD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Bilbao?

Iberia, KLM and Delta are the top three most popular airlines that fly to Bilbao from Boston according to our data. Iberia is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 10 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Boston to Bilbao?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 10h 40m.

What is the cheapest airline that flies from Boston Logan Intl to Bilbao?

United Airlines is the most popular carrier operating from Boston Logan Intl to Bilbao

When did momondo last update prices for flights from Boston Logan Intl Airport to Bilbao Airport?

Prices for flights from Boston Logan Intl Airport to Bilbao Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Boston Logan Intl Airport to Bilbao Airport?

The number of operators available for flights from Boston Logan Intl Airport to Bilbao Airport is 10 as of September 2026.

How old do you have to be to fly from Boston Logan Intl Airport to Bilbao Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Bilbao Airport.

What documentation or ID do you need to fly to Bilbao Airport?

The travel and health documents required for your trip to Bilbao Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bilbao Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$401 Cheap Flights from Boston to Bilbao in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Bilbao

Round-trip

One-way

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Enter your travel dates to find the best prices.

11:10 pm - 5:55 pmBOS Boston Logan Intl-BIO Bilbao

13h 45m1 stop Lisbon Humberto Delgado

12:10 pm - 2:40 pmBIO Bilbao-BOS Boston Logan Intl

32h 30m1 stop Lisbon Humberto Delgado

$535TAP AIR PORTUGAL

Thu, Oct 29 - Sat, Nov 7

6:05 pm - 11:40 amBOS Boston Logan Intl-BIO Bilbao

11h 35m1 stop Lisbon Humberto Delgado

6:40 pm - 7:55 pmBIO Bilbao-BOS Boston Logan Intl

31h 15m1 stop Lisbon Humberto Delgado

$535TAP AIR PORTUGAL

Sun, Oct 18 - Sun, Nov 1

10:55 pm - 6:45 pmBOS Boston Logan Intl-BIO Bilbao

13h 50m1 stop Barcelona-El Prat

10:50 pm - 9:05 pmBIO Bilbao-BOS Boston Logan Intl

28h 15m1 stop Barcelona-El Prat

$571LEVEL

Wed, Oct 14 - Wed, Oct 21

5:40 pm - 12:45 pmBOS Boston Logan Intl-BIO Bilbao

13h 05m1 stop Madrid Barajas

9:15 am - 6:00 pmBIO Bilbao-BOS Boston Logan Intl

14h 45m1 stop Madrid Barajas

$573Iberia

Thu, Oct 22 - Tue, Nov 3

11:35 pm - 4:25 pmBOS Boston Logan Intl-BIO Bilbao

10h 50m1 stop Barcelona-El Prat

10:50 pm - 9:05 pmBIO Bilbao-BOS Boston Logan Intl

28h 15m1 stop Barcelona-El Prat

$608LEVEL

Sun, Oct 4 - Tue, Oct 20

9:05 pm - 12:45 pmBOS Boston Logan Intl-BIO Bilbao

9h 40m1 stop Madrid Barajas

1:35 pm - 6:00 pmBIO Bilbao-BOS Boston Logan Intl

10h 25m1 stop Madrid Barajas

$610Iberia

Wed, Oct 21 - Tue, Nov 3

11:35 pm - 8:15 amBOS Boston Logan Intl-BIO Bilbao

26h 40m1 stop Barcelona-El Prat

7:30 pm - 9:05 pmBIO Bilbao-BOS Boston Logan Intl

31h 35m2 stops Ibiza Barcelona-El Prat

$611Multiple Airlines

Sun, Oct 4 - Tue, Oct 20

8:50 pm - 8:15 amBOS Boston Logan Intl-BIO Bilbao

29h 25m2 stops Reykjavik Keflavik Intl Barcelona-El Prat

10:50 pm - 9:05 pmBIO Bilbao-BOS Boston Logan Intl

28h 15m1 stop Barcelona-El Prat

$615Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

9:20 pm - 4:55 pmBOS Boston Logan Intl-BIO Bilbao

13h 35m1 stop Madrid Barajas

6:45 am - 6:00 pmBIO Bilbao-BOS Boston Logan Intl

17h 15m1 stop Madrid Barajas

$809American Airlines

Thu, Oct 22 - Tue, Nov 3

12:29 pm - 8:30 amBOS Boston Logan Intl-BIO Bilbao

14h 01m2 stops New York John F Kennedy Intl Madrid Barajas

1:35 pm - 6:00 pmBIO Bilbao-BOS Boston Logan Intl

10h 25m1 stop Madrid Barajas

$814American Airlines

Thu, Oct 22 - Tue, Nov 3

Cheap last minute flights

Enter your travel dates to find the best prices.

10:55 pm - 9:55 amBOS Boston Logan Intl-BIO Bilbao

29h 00m1 stop Barcelona-El Prat

2:20 pm - 9:05 pmBIO Bilbao-BOS Boston Logan Intl

12h 45m1 stop Barcelona-El Prat

$715LEVEL

Thu, Sep 10 - Thu, Sep 17

10:55 pm - 8:15 amBOS Boston Logan Intl-BIO Bilbao

27h 20m1 stop Barcelona-El Prat

6:45 am - 7:00 pmBIO Bilbao-BOS Boston Logan Intl

17h 15m1 stop Madrid Barajas

$827Multiple Airlines

Thu, Sep 10 - Sat, Oct 31

10:55 pm - 10:15 pmBOS Boston Logan Intl-BIO Bilbao

17h 20m2 stops Barcelona-El Prat Milan Malpensa

6:45 am - 7:00 pmBIO Bilbao-BOS Boston Logan Intl

17h 15m1 stop Madrid Barajas

$828Multiple Airlines

Thu, Sep 10 - Sat, Oct 31

3:35 pm - 7:35 amBOS Boston Logan Intl-BIO Bilbao

34h 00m3 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat Madrid Barajas

7:00 am - 6:07 pmBIO Bilbao-BOS Boston Logan Intl

17h 07m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl

$856Multiple Airlines

Thu, Sep 10 - Thu, Sep 17

5:40 pm - 12:45 pmBOS Boston Logan Intl-BIO Bilbao

13h 05m1 stop Madrid Barajas

5:35 pm - 4:10 pmBIO Bilbao-BOS Boston Logan Intl

28h 35m1 stop Madrid Barajas

$962Iberia

Sat, Sep 12 - Fri, Sep 18

9:20 pm - 12:45 pmBOS Boston Logan Intl-BIO Bilbao

9h 25m1 stop Madrid Barajas

5:35 pm - 4:10 pmBIO Bilbao-BOS Boston Logan Intl

28h 35m1 stop Madrid Barajas

$962Iberia

Sat, Sep 12 - Fri, Sep 18

8:05 pm - 5:55 pmBOS Boston Logan Intl-BIO Bilbao

15h 50m1 stop Munich Franz Josef Strauss

6:40 pm - 3:40 pmBIO Bilbao-BOS Boston Logan Intl

27h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,147Lufthansa

Sat, Sep 12 - Fri, Sep 18

2:28 pm - 5:55 pmBOS Boston Logan Intl-BIO Bilbao

21h 27m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:40 pm - 3:40 pmBIO Bilbao-BOS Boston Logan Intl

27h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,151Lufthansa

Sat, Sep 12 - Fri, Sep 18

5:10 pm - 9:50 amBOS Boston Logan Intl-BIO Bilbao

10h 40m1 stop Paris Charles de Gaulle

10:30 am - 7:35 pmBIO Bilbao-BOS Boston Logan Intl

15h 05m1 stop Paris Charles de Gaulle

$1,270Delta

Tue, Sep 8 - Thu, Sep 10

5:10 pm - 9:50 amBOS Boston Logan Intl-BIO Bilbao

10h 40m1 stop Paris Charles de Gaulle

10:30 am - 11:10 pmBIO Bilbao-BOS Boston Logan Intl

18h 40m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$1,275Delta

Tue, Sep 8 - Thu, Sep 10

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TAP AIR PORTUGAL flights from Boston to Bilbao

Our best TAP AIR PORTUGAL deals on Boston to Bilbao flight tickets

TAP AIR PORTUGAL

Oct 18

BOS6:05 pmBoston Logan Intl

11h 35m

1 stop

BIO11:40 amBilbao

Nov 1

BIO6:40 pmBilbao

31h 15m

1 stop

BOS7:55 pmBoston Logan Intl

$535

TAP AIR PORTUGAL

Oct 4

BOS6:05 pmBoston Logan Intl

11h 35m

1 stop

BIO11:40 amBilbao

Oct 20

BIO6:50 pmBilbao

25h 55m

1 stop

BOS2:45 pmBoston Logan Intl

$537

TAP AIR PORTUGAL

Oct 13

BOS10:45 pmBoston Logan Intl

30h 45m

1 stop

BIO11:30 amBilbao

Oct 20

BIO6:50 pmBilbao

25h 55m

1 stop

BOS2:45 pmBoston Logan Intl

$538

LEVEL flights from Boston to Bilbao

Our best LEVEL deals on Boston to Bilbao flight tickets

LEVEL

Oct 14

BOS10:55 pmBoston Logan Intl

13h 50m

1 stop

BIO6:45 pmBilbao

Oct 21

BIO10:50 pmBilbao

28h 15m

1 stop

BOS9:05 pmBoston Logan Intl

$571

LEVEL

Oct 4

BOS11:35 pmBoston Logan Intl

10h 50m

1 stop

BIO4:25 pmBilbao

Oct 20

BIO10:50 pmBilbao

28h 15m

1 stop

BOS9:05 pmBoston Logan Intl

$608

LEVEL

Sep 10

BOS10:55 pmBoston Logan Intl

29h 00m

1 stop

BIO9:55 amBilbao

Sep 17

BIO2:20 pmBilbao

12h 45m

1 stop

BOS9:05 pmBoston Logan Intl

$715

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Thu 10/29

11:10 pm-5:55 pm

1 stop13h 45m

Bilbao

Sat 11/7

12:10 pm-2:40 pm

1 stop32h 30m

$535

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/18

6:05 pm-11:40 am

1 stop11h 35m

Bilbao

Sun 11/1

6:40 pm-7:55 pm

1 stop31h 15m

$535

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 10/14

10:55 pm-6:45 pm

1 stop13h 50m

Bilbao

Wed 10/21

10:50 pm-9:05 pm

1 stop28h 15m

$571

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Thu 10/22

5:40 pm-12:45 pm

1 stop13h 05m

Bilbao

Tue 11/3

9:15 am-6:00 pm

1 stop14h 45m

$573

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

11:35 pm-4:25 pm

1 stop10h 50m

Bilbao

Tue 10/20

10:50 pm-9:05 pm

1 stop28h 15m

$608

Quickest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 10/21

9:05 pm-12:45 pm

1 stop9h 40m

Bilbao

Tue 11/3

1:35 pm-6:00 pm

1 stop10h 25m

$610

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

11:35 pm-8:15 am

1 stop26h 40m

Bilbao

Tue 10/20

7:30 pm-9:05 pm

2 stops31h 35m

$611

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 10/13

8:50 pm-8:15 am

2 stops29h 25m

Bilbao

Tue 10/20

10:50 pm-9:05 pm

1 stop28h 15m

$615

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Thu 10/22

9:20 pm-4:55 pm

1 stop13h 35m

Bilbao

Tue 11/3

6:45 am-6:00 pm

1 stop17h 15m

$809

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Thu 10/22

12:29 pm-8:30 am

2 stops14h 01m

Bilbao

Tue 11/3

1:35 pm-6:00 pm

1 stop10h 25m

$814

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Boston and Bilbao?

Prices are currently low for flights on this route.

Typical prices usually range from $594 to $979.
The lowest price recently found on this route was $535.

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Boston is in March. Flight prices, which tend to average around $495, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in March, then January is your next best option. Flight prices from Boston to Bilbao during January average around $528.

How far in advance should I book a flight from Boston to Bilbao?

You are more likely to see cheaper flights to Bilbao from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Bilbao for around $758 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bilbao from Boston for as low as $626 on momondo.

How have Boston to Bilbao flight prices changed over time?

When to book flights from Boston to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Bilbao according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Bilbao (BOS to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Bilbao

Best Price Found	$401
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Bilbao from Boston in the past 72 hours is $401. The best round-trip flight deal from Boston to Bilbao found on momondo in the last 72 hours is $535.

The fastest flight from Boston to Bilbao takes 11h 25m

There are no direct flights from Boston to Bilbao. There are no popular flight routes from Boston to Bilbao.

Search flight deals

Frequently asked questions about flying from Boston to Bilbao

How far is Boston Logan Intl to Bilbao by plane?
The straight-line distance from Boston Logan Intl to Bilbao is 3350.6 mi. In terms of flight time, this usually takes a little over 11h 25m.
When did momondo last update prices for flights from Boston Logan Intl Airport to Bilbao Airport?
Prices for flights from Boston Logan Intl Airport to Bilbao Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to Bilbao Airport?
The number of operators available for flights from Boston Logan Intl Airport to Bilbao Airport is 10 as of September 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Bilbao Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The travel and health documents required for your trip to Bilbao Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bilbao Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Boston to Bilbao?
Based on momondo bookings for flights between Boston and Bilbao, the leading airline is KLM, making up 25% of the total bookings. Other popular airlines include Delta with 22%, Iberia with 20%, and Lufthansa with 13%.

Best airlines flying from Boston to Bilbao

Compare and see reviews for airlines that fly from Boston to Bilbao with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $393	Free Cancellation	Rating 7.4 10,176 reviews	Search United Airlines flights
Iberia	PriceFrom $397	Free Cancellation	Rating 7.0 3,247 reviews	Search Iberia flights
Lufthansa	PriceFrom $463	Free Cancellation	Rating 6.8 8,219 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $471	Free Cancellation	Rating 7.2 2,386 reviews	Search TAP AIR PORTUGAL flights
American Airlines	PriceFrom $495	Free Cancellation	Rating 7.1 12,042 reviews	Search American Airlines flights
KLM	PriceFrom $611	Free Cancellation	Rating 7.8 1,571 reviews	Search KLM flights
Air France	PriceFrom $663	Free Cancellation	Rating 7.5 1,649 reviews	Search Air France flights
Delta	PriceFrom $683	Free Cancellation	Rating 7.8 8,548 reviews	Search Delta flights
Air Europa	PriceFrom $714	Free Cancellation	Rating 7.0 635 reviews	Search Air Europa flights
LEVEL	PriceFrom $897	Free Cancellation	Rating 0.0 0 reviews	Search LEVEL flights

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Laredo

Lekeitio

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Bilbao?

Finding the right flight to Bilbao from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bilbao quick and easy, saving you time and money.

Can I find flights from Boston to Bilbao with flexible booking policies on momondo?

Yes. All flights to Bilbao from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Boston to Bilbao?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bilbao from Boston.

I’m not ready to book a flight from Boston to Bilbao right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Bilbao now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bilbao and let you know when they change.

An easier way to manage your Bilbao trip

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Cheap flights from Boston to Bilbao from $401

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Bilbao departing on 12/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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TAP AIR PORTUGAL flights from Boston to Bilbao

Our best TAP AIR PORTUGAL deals on Boston to Bilbao flight tickets

LEVEL flights from Boston to Bilbao

Our best LEVEL deals on Boston to Bilbao flight tickets

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How to get the cheapest flight ticket from Boston to Bilbao

What is the typical price of a round-trip flight between Boston and Bilbao?

What is the cheapest month to fly to Bilbao?

How far in advance should I book a flight from Boston to Bilbao?

How have Boston to Bilbao flight prices changed over time?

What is the cheapest airline that flies from Boston Logan Intl to Bilbao?

What airlines fly to Bilbao?

Which airport is the most popular layover for flights between Boston and Bilbao?

Which layover airport offers the lowest fares from Boston to Bilbao?

Which layover airport has the shortest travel time from Boston to Bilbao?

Which layover airport has the shortest connection time from Boston to Bilbao?

When to book flights from Boston to Bilbao

Cheap Boston to Bilbao (BOS to BIO) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Boston to Bilbao

Best airlines flying from Boston to Bilbao

Compare and see reviews for airlines that fly from Boston to Bilbao with momondo

Traveling to a place near Bilbao?

Why use momondo?

An easier way to manage your Bilbao trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Spain

Airports servicing Basque Country

Fly your favorite airline to Bilbao

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bilbao

List of cabin classes available on flights landing in Bilbao. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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