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.

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 37m.

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

TAP AIR PORTUGAL, Air Canada, and Delta 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 Amsterdam (AMS) offer the lowest average round-trip price of $610.

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.

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

Madrid (MAD) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

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 August 2025.

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.

$247 Cheap Flights from Boston to Bilbao (BOS-BIO) in 2025

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Find the cheapest flights from Boston to Bilbao (BOS-BIO)

Round-trip

One-way

Last minute

Cheap round-trip flights

4:30 pm - 12:45 pmBOS-BIO

14h 15m1 stop

8:55 am - 9:15 pmBIO-BOS

18h 20m1 stop

$368Iberia

Find Deal

Wed, Oct 8 - Wed, Oct 15

8:05 pm - 11:25 pmBOS-BIO

21h 20m1 stop

7:15 am - 5:40 pmBIO-BOS

16h 25m1 stop

$382United Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 15

8:05 pm - 11:25 pmBOS-BIO

21h 20m1 stop

7:15 am - 5:02 pmBIO-BOS

39h 47m2 stops

$393United Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 15

9:30 pm - 9:55 pmBOS-BIO

18h 25m1 stop

6:45 am - 3:00 pmBIO-BOS

14h 15m1 stop

$394

Find Deal

Sun, Sep 14 - Fri, Sep 26

9:30 pm - 9:55 pmBOS-BIO

18h 25m1 stop

6:45 am - 10:50 pmBIO-BOS

22h 05m2 stops

$405

Find Deal

Sun, Sep 14 - Fri, Sep 26

3:47 pm - 12:50 pmBOS-BIO

15h 03m2 stops

1:35 pm - 7:50 pmBIO-BOS

12h 15m1 stop

$425American Airlines

Find Deal

Sun, Nov 16 - Sun, Nov 23

3:47 pm - 12:50 pmBOS-BIO

15h 03m2 stops

1:35 pm - 10:47 pmBIO-BOS

15h 12m2 stops

$435American Airlines

Find Deal

Sun, Nov 16 - Sun, Nov 23

10:00 pm - 10:25 pmBOS-BIO

18h 25m1 stop

7:10 pm - 4:00 pmBIO-BOS

26h 50m1 stop

$469Lufthansa

Find Deal

Wed, Sep 10 - Mon, Sep 22

10:00 pm - 10:25 pmBOS-BIO

18h 25m1 stop

7:10 pm - 5:40 pmBIO-BOS

28h 30m2 stops

$470Lufthansa

Find Deal

Wed, Sep 10 - Mon, Sep 22

4:50 pm - 4:30 pmBOS-BIO

17h 40m1 stop

6:50 am - 4:30 pmBIO-BOS

15h 40m1 stop

$529KLM

Find Deal

Wed, Sep 17 - Thu, Sep 25

Iberia flights from Boston to Bilbao

Our best Iberia deals on Boston to Bilbao flight tickets

Iberia

Oct 8

BOS4:30 pmBoston Logan Intl

14h 15m

1 stop

BIO12:45 pmBilbao

Oct 15

BIO8:55 amBilbao

18h 20m

1 stop

BOS9:15 pmBoston Logan Intl

$368

Find similar

Iberia

Sep 14

BOS11:00 pmBoston Logan Intl

18h 00m

1 stop

BIO11:00 pmBilbao

Sep 26

BIO9:15 amBilbao

16h 35m

1 stop

BOS7:50 pmBoston Logan Intl

$398

Find similar

Iberia

Sep 16

BOS11:40 pmBoston Logan Intl

26h 35m

1 stop

BIO8:15 amBilbao

Sep 23

BIO1:30 pmBilbao

12h 20m

1 stop

BOS7:50 pmBoston Logan Intl

$403

Find similar

United Airlines flights from Boston to Bilbao

Our best United Airlines deals on Boston to Bilbao flight tickets

United Airlines

Oct 8

BOS8:05 pmBoston Logan Intl

21h 20m

1 stop

BIO11:25 pmBilbao

Oct 15

BIO7:15 amBilbao

16h 25m

1 stop

BOS5:40 pmBoston Logan Intl

$382

Find similar

United Airlines

Oct 8

BOS8:05 pmBoston Logan Intl

21h 20m

1 stop

BIO11:25 pmBilbao

Oct 15

BIO7:15 amBilbao

39h 47m

2 stops

BOS5:02 pmBoston Logan Intl

$393

Find similar

United Airlines

Sep 16

BOS9:30 amBoston Logan Intl

19h 15m

2 stops

BIO10:45 amBilbao

Sep 23

BIO6:45 amBilbao

15h 15m

1 stop

BOS4:00 pmBoston Logan Intl

$428

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 10/8

4:30 pm-12:45 pm

1 stop14h 15m

Bilbao

Wed 10/15

8:55 am-9:15 pm

1 stop18h 20m

$368

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 10/8

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Wed 10/15

7:15 am-5:40 pm

1 stop16h 25m

$382

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 10/8

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Wed 10/15

7:15 am-5:02 pm

2 stops39h 47m

$393

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 9/14

9:30 pm-9:55 pm

1 stop18h 25m

Bilbao

Fri 9/26

6:45 am-3:00 pm

1 stop14h 15m

$394

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 9/14

9:30 pm-9:55 pm

1 stop18h 25m

Bilbao

Fri 9/26

6:45 am-10:50 pm

2 stops22h 05m

$405

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 11/16

3:47 pm-12:50 pm

2 stops15h 03m

Bilbao

Sun 11/23

1:35 pm-7:50 pm

1 stop12h 15m

$425

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 11/16

3:47 pm-12:50 pm

2 stops15h 03m

Bilbao

Sun 11/23

1:35 pm-10:47 pm

2 stops15h 12m

$435

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 9/10

10:00 pm-10:25 pm

1 stop18h 25m

Bilbao

Mon 9/22

7:10 pm-4:00 pm

1 stop26h 50m

$469

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 9/10

10:00 pm-10:25 pm

1 stop18h 25m

Bilbao

Mon 9/22

7:10 pm-5:40 pm

2 stops28h 30m

$470

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 9/17

4:50 pm-4:30 pm

1 stop17h 40m

Bilbao

Thu 9/25

6:50 am-4:30 pm

1 stop15h 40m

$529

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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 February. Flight prices, which tend to average around $488, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in February, then September is your next best option. Flight prices from Boston to Bilbao during September average around $569.

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Boston to Bilbao is on a Sunday. Travelers who choose to depart for Bilbao on a Sunday will often find tickets for as low as $708. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $877. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the morning. Flights from Boston to Bilbao during this time can be as low as $663. In the afternoon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $820 per ticket.

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 $685 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 $497 on momondo.

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

Direct flights	None

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

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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 9h 45m.
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 August 2025.
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 34% of the total bookings. Other popular airlines include Lufthansa with 15%, Delta with 11%, and KLM with 10%.

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
LEVEL	PriceFrom $418	Free Cancellation	Rating 4.0 4 reviews	Search LEVEL flights
Iberia	PriceFrom $419	Free Cancellation	Rating 7.0 2,891 reviews	Search Iberia flights
Delta	PriceFrom $424	Free Cancellation	Rating 7.9 7,979 reviews	Search Delta flights
TAP AIR PORTUGAL	PriceFrom $428	Free Cancellation	Rating 7.1 1,962 reviews	Search TAP AIR PORTUGAL flights
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
KLM	PriceFrom $532	Free Cancellation	Rating 7.8 1,387 reviews	Search KLM flights
Lufthansa	PriceFrom $576	Free Cancellation	Rating 6.8 7,359 reviews	Search Lufthansa flights
United Airlines	PriceFrom $576	Free Cancellation	Rating 7.4 8,943 reviews	Search United Airlines 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 $247

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 11/30. 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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Iberia flights from Boston to Bilbao

Our best Iberia deals on Boston to Bilbao flight tickets

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Our best United Airlines deals on Boston to Bilbao flight tickets

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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

What is the cheapest month to fly to Bilbao?

What is the cheapest day to depart on your flight to Bilbao?

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the morning. Flights from Boston to Bilbao during this time can be as low as $663. In the afternoon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $820 per ticket.

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

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

TAP AIR PORTUGAL, Air Canada, and Delta 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?

Madrid (MAD) was the most common stop: 38% 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 Amsterdam (AMS) offer the lowest average round-trip price of $610.

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 37m.

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

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