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

Madrid (MAD) was the most common stop: 47% of momondo users choosing 1-stop flights on this route connected there.

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

Barcelona (BCN) has the shortest average layover time for this route: 2h 21m.

What airlines fly to Bilbao?

Iberia, Delta and Lufthansa 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 51% 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 Barcelona (BCN) have the shortest average one-way travel time: 11h 36m.

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

LEVEL, Aer Lingus, and United Airlines are the most popular carriers operating from Boston Logan Intl to Bilbao

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

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

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 April 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.

$303 Cheap Flights from Boston to Bilbao in 2026

Q: 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 $1,071 to $705. The lowest price recently found on this route was $692.

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Find the cheapest flights from Boston to Bilbao

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Enter your travel dates to find the best prices.

5:40 pm - 4:55 pm

BOS

BIO

17h 15m

1 stop

9:15 am - 9:29 pm

BIO

BOS

17h 14m

2 stops

$692British Airways

Tue, Oct 20 - Sun, Oct 25

5:20 pm - 3:55 pm

BOS

BIO

16h 35m

1 stop

8:20 am - 4:31 pm

BIO

BOS

14h 11m

1 stop

$695KLM

Tue, Jul 28 - Wed, Aug 12

7:25 pm - 5:55 pm

BOS

BIO

16h 30m

2 stops

2:05 pm - 8:10 pm

BIO

BOS

12h 05m

1 stop

$701United Airlines

Sat, Aug 15 - Tue, Sep 1

5:25 pm - 3:55 pm

BOS

BIO

16h 30m

1 stop

5:15 pm - 6:30 pm

BIO

BOS

31h 15m

1 stop

$711KLM

Mon, Aug 10 - Tue, Aug 18

5:20 pm - 8:05 am

BOS

BIO

32h 45m

1 stop

6:45 am - 10:39 pm

BIO

BOS

21h 54m

2 stops

$714Multiple Airlines

Wed, May 27 - Fri, Jun 5

5:10 pm - 9:50 am

BOS

BIO

10h 40m

1 stop

10:30 am - 7:35 pm

BIO

BOS

15h 05m

1 stop

$715Delta

Tue, Aug 11 - Fri, Aug 21

8:15 pm - 10:45 am

BOS

BIO

32h 30m

2 stops

11:00 am - 8:10 pm

BIO

BOS

15h 10m

1 stop

$717United Airlines

Mon, Jul 27 - Wed, Aug 12

5:44 pm - 10:45 am

BOS

BIO

11h 01m

1 stop

11:55 am - 5:40 pm

BIO

BOS

11h 45m

1 stop

$718United Airlines

Tue, Jul 14 - Tue, Jul 21

5:10 pm - 9:50 am

BOS

BIO

10h 40m

1 stop

10:30 am - 10:36 pm

BIO

BOS

18h 06m

2 stops

$719Delta

Mon, Jul 27 - Tue, Aug 11

5:10 pm - 9:50 am

BOS

BIO

10h 40m

1 stop

10:30 am - 10:36 pm

BIO

BOS

18h 06m

2 stops

$720Delta

Tue, Jul 28 - Wed, Aug 12

KLM flights from Boston to Bilbao

Our best KLM deals on Boston to Bilbao flight tickets

KLM

Jul 28

BOS5:20 pmBoston Logan Intl

16h 35m

1 stop

BIO3:55 pmBilbao

Aug 12

BIO8:20 amBilbao

14h 11m

1 stop

BOS4:31 pmBoston Logan Intl

$695

KLM

Aug 10

BOS5:25 pmBoston Logan Intl

16h 30m

1 stop

BIO3:55 pmBilbao

Aug 18

BIO5:15 pmBilbao

31h 15m

1 stop

BOS6:30 pmBoston Logan Intl

$711

United Airlines flights from Boston to Bilbao

Our best United Airlines deals on Boston to Bilbao flight tickets

United Airlines

Aug 15

BOS7:25 pmBoston Logan Intl

16h 30m

2 stops

BIO5:55 pmBilbao

Sep 1

BIO2:05 pmBilbao

12h 05m

1 stop

BOS8:10 pmBoston Logan Intl

$701

United Airlines

Jul 27

BOS8:15 pmBoston Logan Intl

32h 30m

2 stops

BIO10:45 amBilbao

Aug 12

BIO11:00 amBilbao

15h 10m

1 stop

BOS8:10 pmBoston Logan Intl

$717

United Airlines

Jul 14

BOS5:44 pmBoston Logan Intl

11h 01m

1 stop

BIO10:45 amBilbao

Jul 21

BIO11:55 amBilbao

11h 45m

1 stop

BOS5:40 pmBoston Logan Intl

$718

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 10/20

5:40 pm-4:55 pm

1 stop17h 15m

Bilbao

Sun 10/25

9:15 am-9:29 pm

2 stops17h 14m

$692

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 7/28

5:20 pm-3:55 pm

1 stop16h 35m

Bilbao

Wed 8/12

8:20 am-4:31 pm

1 stop14h 11m

$695

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 8/15

7:25 pm-5:55 pm

2 stops16h 30m

Bilbao

Tue 9/1

2:05 pm-8:10 pm

1 stop12h 05m

$701

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 8/10

5:25 pm-3:55 pm

1 stop16h 30m

Bilbao

Tue 8/18

5:15 pm-6:30 pm

1 stop31h 15m

$711

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 5/27

5:20 pm-8:05 am

1 stop32h 45m

Bilbao

Fri 6/5

6:45 am-10:39 pm

2 stops21h 54m

$714

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 8/11

5:10 pm-9:50 am

1 stop10h 40m

Bilbao

Fri 8/21

10:30 am-7:35 pm

1 stop15h 05m

$715

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 7/27

8:15 pm-10:45 am

2 stops32h 30m

Bilbao

Wed 8/12

11:00 am-8:10 pm

1 stop15h 10m

$717

Quickest round-trip

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 7/14

5:44 pm-10:45 am

1 stop11h 01m

Bilbao

Tue 7/21

11:55 am-5:40 pm

1 stop11h 45m

$718

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 7/27

5:10 pm-9:50 am

1 stop10h 40m

Bilbao

Tue 8/11

10:30 am-10:36 pm

2 stops18h 06m

$719

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 7/28

5:10 pm-9:50 am

1 stop10h 40m

Bilbao

Wed 8/12

10:30 am-10:36 pm

2 stops18h 06m

$720

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?

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Boston is in October. Flight prices, which tend to average around $483, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in October, then March is your next best option. Flight prices from Boston to Bilbao during March average around $495.

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 $687 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 $527 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

Fastest flight time	10h 05m
Direct flights	None

The fastest flight from Boston to Bilbao takes 10h 05m

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 10h 05m.
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 April 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 Iberia, making up 28% of the total bookings. Other popular airlines include Delta with 16%, Lufthansa with 16%, and KLM 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
Iberia	PriceFrom $386	Free Cancellation	Rating 7.0 3,199 reviews	Search Iberia flights
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.1 11,667 reviews	Search American Airlines flights
Lufthansa	PriceFrom $453	Free Cancellation	Rating 6.8 7,956 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $468	Free Cancellation	Rating 7.1 2,223 reviews	Search TAP AIR PORTUGAL flights
United Airlines	PriceFrom $499	Free Cancellation	Rating 7.4 9,665 reviews	Search United Airlines flights
Delta	PriceFrom $508	Free Cancellation	Rating 7.9 8,463 reviews	Search Delta flights
LEVEL	PriceFrom $523	Free Cancellation	Rating 0.0	Search LEVEL flights
KLM	PriceFrom $559	Free Cancellation	Rating 7.8 1,508 reviews	Search KLM flights
Air Europa	PriceFrom $714	Free Cancellation	Rating 6.9 603 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 $303

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 5/30. 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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KLM flights from Boston to Bilbao

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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

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

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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