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

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

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

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

What airlines fly to Bilbao?

Iberia, Lufthansa and American Airlines 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 60% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 8 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

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

Lufthansa and United Airlines are the most popular carriers operating from Boston Logan Intl to Bilbao

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

Flights connecting via Madrid (MAD) have the shortest average one-way travel time: 9h 39m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 2h 08m.

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 8 as of February 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.

$280 Cheap Flights from Boston to Bilbao in 2026

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9:20 pm - 11:15 pm

BOS

BIO

19h 55m

1 stop

6:45 am - 8:50 pm

BIO

BOS

19h 05m

1 stop

$342Finnair

Sun, Mar 1 - Tue, Mar 17

4:45 pm - 8:30 am

BOS

BIO

9h 45m

1 stop

6:45 am - 4:15 pm

BIO

BOS

14h 30m

1 stop

$375Iberia

Tue, Mar 3 - Tue, Mar 10

8:05 pm - 11:25 pm

BOS

BIO

21h 20m

1 stop

8:55 pm - 3:10 pm

BIO

BOS

24h 15m

1 stop

$378Multiple Airlines

Sun, Apr 19 - Tue, Apr 28

4:45 pm - 11:20 am

BOS

BIO

12h 35m

2 stops

8:55 am - 9:55 pm

BIO

BOS

18h 00m

1 stop

$379Iberia

Sun, Mar 1 - Tue, Mar 17

8:05 pm - 11:25 pm

BOS

BIO

21h 20m

1 stop

7:15 am - 5:40 pm

BIO

BOS

16h 25m

1 stop

$383Lufthansa

Sun, Apr 19 - Tue, Apr 28

8:35 pm - 10:25 pm

BOS

BIO

19h 50m

1 stop

7:25 am - 1:40 pm

BIO

BOS

12h 15m

1 stop

$388Air France

Wed, Feb 18 - Tue, Feb 24

10:50 pm - 4:35 pm

BOS

BIO

11h 45m

1 stop

3:30 pm - 9:05 pm

BIO

BOS

11h 35m

1 stop

$389Iberia

Wed, Apr 22 - Wed, Apr 29

10:15 am - 12:50 pm

BOS

BIO

21h 35m

2 stops

6:40 pm - 5:40 pm

BIO

BOS

29h 00m

1 stop

$394Multiple Airlines

Mon, Mar 23 - Mon, Mar 30

9:40 pm - 9:55 pm

BOS

BIO

19h 15m

1 stop

6:50 pm - 7:35 pm

BIO

BOS

29h 45m

1 stop

$397Lufthansa

Tue, Mar 10 - Mon, Mar 16

8:05 pm - 11:25 pm

BOS

BIO

21h 20m

1 stop

7:15 am - 9:54 pm

BIO

BOS

20h 39m

2 stops

$398United Airlines

Sun, Apr 19 - Tue, Apr 28

United Airlines flights from Boston to Bilbao

Our best United Airlines deals on Boston to Bilbao flight tickets

United Airlines

Apr 19

BOS8:05 pmBoston Logan Intl

21h 20m

1 stop

BIO11:25 pmBilbao

Apr 28

BIO7:15 amBilbao

20h 39m

2 stops

BOS9:54 pmBoston Logan Intl

$398

United Airlines

Mar 3

BOS11:51 amBoston Logan Intl

16h 59m

2 stops

BIO10:50 amBilbao

Mar 10

BIO7:40 amBilbao

19h 57m

2 stops

BOS10:37 pmBoston Logan Intl

$401

United Airlines

Apr 19

BOS7:30 pmBoston Logan Intl

21h 55m

2 stops

BIO11:25 pmBilbao

Apr 27

BIO2:10 pmBilbao

33h 47m

2 stops

BOS5:57 pmBoston Logan Intl

$425

Austrian Airlines flights from Boston to Bilbao

Our best Austrian Airlines deals on Boston to Bilbao flight tickets

Austrian Airlines

Mar 10

BOS7:25 pmBoston Logan Intl

22h 55m

2 stops

BIO11:20 pmBilbao

Mar 16

BIO12:50 pmBilbao

31h 15m

2 stops

BOS3:05 pmBoston Logan Intl

$443

Austrian Airlines

Feb 17

BOS6:25 pmBoston Logan Intl

22h 55m

2 stops

BIO11:20 pmBilbao

Feb 22

BIO12:45 pmBilbao

55h 20m

2 stops

BOS2:05 pmBoston Logan Intl

$720

Austrian Airlines

Feb 17

BOS6:25 pmBoston Logan Intl

46h 55m

2 stops

BIO11:20 pmBilbao

Feb 22

BIO12:45 pmBilbao

55h 20m

2 stops

BOS2:05 pmBoston Logan Intl

$721

Fly from

Fly to

Route

Depart

Return

Price

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 3/1

9:20 pm-11:15 pm

1 stop19h 55m

Bilbao

Tue 3/17

6:45 am-8:50 pm

1 stop19h 05m

$342

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 3/3

4:45 pm-8:30 am

1 stop9h 45m

Bilbao

Tue 3/10

6:45 am-4:15 pm

1 stop14h 30m

$375

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 4/19

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Tue 4/28

8:55 pm-3:10 pm

1 stop24h 15m

$378

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 3/1

4:45 pm-11:20 am

2 stops12h 35m

Bilbao

Tue 3/17

8:55 am-9:55 pm

1 stop18h 00m

$379

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 4/19

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Tue 4/28

7:15 am-5:40 pm

1 stop16h 25m

$383

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 2/18

8:35 pm-10:25 pm

1 stop19h 50m

Bilbao

Tue 2/24

7:25 am-1:40 pm

1 stop12h 15m

$388

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 4/22

10:50 pm-4:35 pm

1 stop11h 45m

Bilbao

Wed 4/29

3:30 pm-9:05 pm

1 stop11h 35m

$389

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 3/23

10:15 am-12:50 pm

2 stops21h 35m

Bilbao

Mon 3/30

6:40 pm-5:40 pm

1 stop29h 00m

$394

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 3/10

9:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Mon 3/16

6:50 pm-7:35 pm

1 stop29h 45m

$397

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 4/19

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Tue 4/28

7:15 am-9:54 pm

2 stops20h 39m

$398

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 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 $521.

How far in advance should I book a flight 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 $634 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 $524 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	12h 30m
Direct flights	None

The fastest flight from Boston to Bilbao takes 12h 30m

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

Search flight deals

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 12h 30m.
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 8 as of February 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 35% of the total bookings. Other popular airlines include Lufthansa with 18%, United Airlines with 10%, and KLM with 9%.

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 $381	Free Cancellation	Rating 7.0 3,110 reviews	Search Iberia flights
United Airlines	PriceFrom $393	Free Cancellation	Rating 7.4 9,259 reviews	Search United Airlines flights
Lufthansa	PriceFrom $417	Free Cancellation	Rating 6.8 7,775 reviews	Search Lufthansa flights
Delta	PriceFrom $424	Free Cancellation	Rating 7.9 8,174 reviews	Search Delta flights
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.2 11,258 reviews	Search American Airlines flights
TAP AIR PORTUGAL	PriceFrom $468	Free Cancellation	Rating 7.1 2,135 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom $469	Free Cancellation	Rating 7.7 1,450 reviews	Search KLM flights
LEVEL	PriceFrom $523	Free Cancellation	Rating 0.0	Search LEVEL flights

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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 $280

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 5/9. 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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How to get the cheapest flight ticket from Boston to Bilbao

What is the cheapest month to fly to Bilbao?

How far in advance should I book a flight 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?

Lufthansa and United Airlines are the most popular carriers operating from Boston Logan Intl to Bilbao

What airlines fly to Bilbao?

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

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

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 travel time from Boston to Bilbao?

Flights connecting via Madrid (MAD) have the shortest average one-way travel time: 9h 39m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 2h 08m.

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

How far is Boston Logan Intl to Bilbao by plane?

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

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

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

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

What is the most popular airline 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?

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

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

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

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

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.

Popular cities in Spain

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

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According to popular flight searches on momondo this year

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