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

Madrid (MAD) was the most common stop: 53% 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 offers the lowest fares from Boston to Bilbao?

Flights via Lisbon (LIS) offer the lowest average round-trip price of $811.

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 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.

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.

$338 Cheap Flights from Boston to Bilbao in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Bilbao

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 pm - 11:25 amBOS Boston Logan Intl-BIO Bilbao

11h 25m1 stop Lisbon Humberto Delgado

7:20 pm - 2:45 pmBIO Bilbao-BOS Boston Logan Intl

25h 25m1 stop Lisbon Humberto Delgado

$527TAP AIR PORTUGAL

Wed, Jan 13 - Mon, Jan 18

10:10 pm - 6:35 pmBOS Boston Logan Intl-BIO Bilbao

14h 25m1 stop Lisbon Humberto Delgado

12:25 pm - 7:55 pmBIO Bilbao-BOS Boston Logan Intl

13h 30m1 stop Lisbon Humberto Delgado

$527TAP AIR PORTUGAL

Sun, Jan 10 - Sat, Jan 16

10:50 am - 11:55 amBOS Boston Logan Intl-BIO Bilbao

19h 05m2 stops Toronto Pearson Intl Madrid Barajas

9:05 pm - 7:55 pmBIO Bilbao-BOS Boston Logan Intl

28h 50m2 stops Madrid Barajas Zurich

$567Multiple Airlines

Tue, Oct 6 - Wed, Oct 14

5:30 am - 12:55 pmBOS Boston Logan Intl-BIO Bilbao

25h 25m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat

2:25 pm - 8:20 pmBIO Bilbao-BOS Boston Logan Intl

35h 55m2 stops Barcelona-El Prat Zurich

$581Multiple Airlines

Tue, Nov 24 - Mon, Nov 30

8:40 pm - 9:55 pmBOS Boston Logan Intl-BIO Bilbao

19h 15m1 stop Munich Franz Josef Strauss

6:30 pm - 6:35 pmBIO Bilbao-BOS Boston Logan Intl

30h 05m1 stop Munich Franz Josef Strauss

$605Lufthansa

Tue, Nov 24 - Mon, Nov 30

9:05 pm - 4:55 pmBOS Boston Logan Intl-BIO Bilbao

13h 50m1 stop Madrid Barajas

9:35 pm - 6:00 pmBIO Bilbao-BOS Boston Logan Intl

26h 25m1 stop Madrid Barajas

$611American Airlines

Sun, Oct 18 - Mon, Nov 2

5:30 pm - 11:55 amBOS Boston Logan Intl-BIO Bilbao

12h 25m1 stop Madrid Barajas

11:55 am - 7:01 pmBIO Bilbao-BOS Boston Logan Intl

13h 06m1 stop Amsterdam Schiphol

$622KLM

Mon, Oct 12 - Wed, Nov 4

5:30 pm - 3:55 pmBOS Boston Logan Intl-BIO Bilbao

16h 25m1 stop Madrid Barajas

12:15 pm - 11:05 pmBIO Bilbao-BOS Boston Logan Intl

16h 50m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$633KLM

Mon, Oct 12 - Thu, Nov 5

2:36 pm - 9:55 pmBOS Boston Logan Intl-BIO Bilbao

25h 19m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

7:30 am - 6:35 pmBIO Bilbao-BOS Boston Logan Intl

17h 05m1 stop Munich Franz Josef Strauss

$634Lufthansa

Tue, Dec 8 - Thu, Dec 31

7:15 pm - 4:55 pmBOS Boston Logan Intl-BIO Bilbao

15h 40m2 stops London Heathrow Madrid Barajas

6:45 am - 6:25 pmBIO Bilbao-BOS Boston Logan Intl

17h 40m1 stop Madrid Barajas

$966American Airlines

Thu, Dec 24 - Fri, Jan 1

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Lufthansa flights from Boston to Bilbao

Our best Lufthansa deals on Boston to Bilbao flight tickets

Lufthansa

Nov 24

BOS8:40 pmBoston Logan Intl

19h 15m

1 stop

BIO9:55 pmBilbao

Nov 30

BIO6:30 pmBilbao

30h 05m

1 stop

BOS6:35 pmBoston Logan Intl

$605

Lufthansa

Dec 8

BOS2:36 pmBoston Logan Intl

25h 19m

2 stops

BIO9:55 pmBilbao

Dec 31

BIO7:30 amBilbao

17h 05m

1 stop

BOS6:35 pmBoston Logan Intl

$634

Lufthansa

Dec 12

BOS7:33 pmBoston Logan Intl

34h 07m

2 stops

BIO11:40 amBilbao

Dec 31

BIO11:45 amBilbao

12h 50m

1 stop

BOS6:35 pmBoston Logan Intl

$666

SWISS flights from Boston to Bilbao

Our best SWISS deals on Boston to Bilbao flight tickets

SWISS

Oct 22

BOS9:40 pmBoston Logan Intl

10h 10m

1 stop

BIO1:50 pmBilbao

Nov 3

BIO11:45 amBilbao

14h 35m

2 stops

BOS8:20 pmBoston Logan Intl

$639

SWISS

Oct 22

BOS9:40 pmBoston Logan Intl

10h 10m

1 stop

BIO1:50 pmBilbao

Nov 3

BIO11:45 amBilbao

14h 35m

2 stops

BOS8:20 pmBoston Logan Intl

$643

SWISS

Oct 12

BOS5:10 pmBoston Logan Intl

20h 55m

1 stop

BIO8:05 pmBilbao

Nov 6

BIO9:55 amBilbao

16h 25m

1 stop

BOS8:20 pmBoston Logan Intl

$662

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 1/13

6:00 pm-11:25 am

1 stop11h 25m

Bilbao

Mon 1/18

7:20 pm-2:45 pm

1 stop25h 25m

$527

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 1/10

10:10 pm-6:35 pm

1 stop14h 25m

Bilbao

Sat 1/16

12:25 pm-7:55 pm

1 stop13h 30m

$527

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 10/6

10:50 am-11:55 am

2 stops19h 05m

Bilbao

Wed 10/14

9:05 pm-7:55 pm

2 stops28h 50m

$567

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 11/24

5:30 am-12:55 pm

2 stops25h 25m

Bilbao

Mon 11/30

2:25 pm-8:20 pm

2 stops35h 55m

$581

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 11/24

8:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Mon 11/30

6:30 pm-6:35 pm

1 stop30h 05m

$605

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/18

9:05 pm-4:55 pm

1 stop13h 50m

Bilbao

Mon 11/2

9:35 pm-6:00 pm

1 stop26h 25m

$611

Quickest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Mon 10/12

5:30 pm-11:55 am

1 stop12h 25m

Bilbao

Wed 11/4

11:55 am-7:01 pm

1 stop13h 06m

$622

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Mon 10/12

5:30 pm-3:55 pm

1 stop16h 25m

Bilbao

Thu 11/5

12:15 pm-11:05 pm

2 stops16h 50m

$633

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 12/8

2:36 pm-9:55 pm

2 stops25h 19m

Bilbao

Thu 12/31

7:30 am-6:35 pm

1 stop17h 05m

$634

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Thu 12/24

7:15 pm-4:55 pm

2 stops15h 40m

Bilbao

Fri 1/1

6:45 am-6:25 pm

1 stop17h 40m

$966

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 $938.
The lowest price recently found on this route was $527.

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 $759 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	$338
Fastest flight time	11h 10m
Direct flights	None

The best one-way flight to Bilbao from Boston in the past 72 hours is $338. The best round-trip flight deal from Boston to Bilbao found on momondo in the last 72 hours is $527.

The fastest flight from Boston to Bilbao takes 11h 10m

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 10m.
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 10,213 reviews	Search United Airlines flights
Iberia	PriceFrom $397	Free Cancellation	Rating 7.0 3,249 reviews	Search Iberia flights
TAP AIR PORTUGAL	PriceFrom $471	Free Cancellation	Rating 7.2 2,385 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $483	Free Cancellation	Rating 6.8 8,229 reviews	Search Lufthansa flights
American Airlines	PriceFrom $495	Free Cancellation	Rating 7.1 12,075 reviews	Search American Airlines flights
KLM	PriceFrom $611	Free Cancellation	Rating 7.8 1,578 reviews	Search KLM flights
Air France	PriceFrom $663	Free Cancellation	Rating 7.5 1,650 reviews	Search Air France flights
Delta	PriceFrom $683	Free Cancellation	Rating 7.8 8,579 reviews	Search Delta flights
Air Europa	PriceFrom $714	Free Cancellation	Rating 6.9 640 reviews	Search Air Europa flights
LEVEL	PriceFrom $897	Free Cancellation	Rating 0.0 0 reviews	Search LEVEL flights

Getxo

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 $338

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 10/2. 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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Lufthansa flights from Boston to Bilbao

Our best Lufthansa deals on Boston to Bilbao flight tickets

SWISS flights from Boston to Bilbao

Our best SWISS 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 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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