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

SWISS, Iberia, and British Airways 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 Barcelona (BCN) have the shortest average one-way travel time: 11h 01m.

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

Barcelona (BCN) has the shortest average layover time for this route: 2h 06m.

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, Delta and KLM 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 48% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 9 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 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 9 as of May 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.

$325 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 $1,002 to $645. The lowest price recently found on this route was $739.

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Find the cheapest flights from Boston to Bilbao

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One-way

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11:35 pm - 4:25 pm

BOS

BIO

10h 50m

1 stop

7:00 am - 4:10 pm

BIO

BOS

15h 10m

2 stops

$739Iberia

Sun, Oct 18 - Thu, Oct 22

11:35 pm - 8:15 am

BOS

BIO

26h 40m

1 stop

7:10 am - 9:45 pm

BIO

BOS

20h 35m

1 stop

$740LEVEL

Thu, Jul 9 - Thu, Jul 16

10:50 am - 11:05 pm

BOS

BIO

30h 15m

2 stops

6:45 am - 8:22 pm

BIO

BOS

18h 37m

2 stops

$742United Airlines

Tue, Oct 20 - Sun, Oct 25

12:30 pm - 10:45 am

BOS

BIO

16h 15m

2 stops

12:30 pm - 9:53 pm

BIO

BOS

15h 23m

1 stop

$746United Airlines

Tue, Jul 14 - Wed, Jul 29

10:55 am - 10:45 am

BOS

BIO

17h 50m

1 stop

11:55 am - 5:40 pm

BIO

BOS

11h 45m

1 stop

$749United Airlines

Tue, Jul 14 - Tue, Jul 28

8:05 pm - 11:10 pm

BOS

BIO

21h 05m

2 stops

7:15 am - 8:10 pm

BIO

BOS

18h 55m

2 stops

$752Lufthansa

Thu, Sep 17 - Fri, Sep 25

3:35 pm - 4:00 pm

BOS

BIO

18h 25m

2 stops

11:35 am - 8:20 pm

BIO

BOS

14h 45m

2 stops

$753Multiple Airlines

Thu, Oct 22 - Tue, Nov 3

9:20 pm - 11:15 pm

BOS

BIO

19h 55m

1 stop

7:40 am - 9:05 pm

BIO

BOS

19h 25m

1 stop

$755Iberia

Tue, Jun 30 - Wed, Jul 8

8:05 pm - 5:55 pm

BOS

BIO

15h 50m

1 stop

12:30 pm - 9:53 pm

BIO

BOS

15h 23m

1 stop

$757United Airlines

Sun, Jul 12 - Fri, Jul 24

5:20 pm - 11:55 am

BOS

BIO

12h 35m

1 stop

8:20 am - 4:34 pm

BIO

BOS

14h 14m

1 stop

$759KLM

Mon, Jul 6 - Thu, Jul 16

Lufthansa flights from Boston to Bilbao

Our best Lufthansa deals on Boston to Bilbao flight tickets

Lufthansa

Sep 17

BOS8:05 pmBoston Logan Intl

21h 05m

2 stops

BIO11:10 pmBilbao

Sep 25

BIO7:15 amBilbao

18h 55m

2 stops

BOS8:10 pmBoston Logan Intl

$752

Lufthansa

Aug 15

BOS7:23 pmBoston Logan Intl

15h 47m

2 stops

BIO5:10 pmBilbao

Aug 25

BIO6:50 amBilbao

23h 09m

2 stops

BOS11:59 pmBoston Logan Intl

$762

Lufthansa

Jun 1

BOS8:05 pmBoston Logan Intl

15h 50m

1 stop

BIO5:55 pmBilbao

Jun 8

BIO6:40 pmBilbao

29h 00m

1 stop

BOS5:40 pmBoston Logan Intl

$777

Iberia flights from Boston to Bilbao

Our best Iberia deals on Boston to Bilbao flight tickets

Iberia

Oct 18

BOS11:35 pmBoston Logan Intl

10h 50m

1 stop

BIO4:25 pmBilbao

Oct 22

BIO7:00 amBilbao

15h 10m

2 stops

BOS4:10 pmBoston Logan Intl

$739

Iberia

Jun 30

BOS9:20 pmBoston Logan Intl

19h 55m

1 stop

BIO11:15 pmBilbao

Jul 8

BIO7:40 amBilbao

19h 25m

1 stop

BOS9:05 pmBoston Logan Intl

$755

Iberia

Jun 30

BOS9:20 pmBoston Logan Intl

17h 30m

1 stop

BIO8:50 pmBilbao

Jul 8

BIO7:40 amBilbao

19h 25m

1 stop

BOS9:05 pmBoston Logan Intl

$761

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 10/18

11:35 pm-4:25 pm

1 stop10h 50m

Bilbao

Thu 10/22

7:00 am-4:10 pm

2 stops15h 10m

$739

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Thu 7/9

11:35 pm-8:15 am

1 stop26h 40m

Bilbao

Thu 7/16

7:10 am-9:45 pm

1 stop20h 35m

$740

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 10/20

10:50 am-11:05 pm

2 stops30h 15m

Bilbao

Sun 10/25

6:45 am-8:22 pm

2 stops18h 37m

$742

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 7/14

12:30 pm-10:45 am

2 stops16h 15m

Bilbao

Wed 7/29

12:30 pm-9:53 pm

1 stop15h 23m

$746

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 7/14

10:55 am-10:45 am

1 stop17h 50m

Bilbao

Tue 7/28

11:55 am-5:40 pm

1 stop11h 45m

$749

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Thu 9/17

8:05 pm-11:10 pm

2 stops21h 05m

Bilbao

Fri 9/25

7:15 am-8:10 pm

2 stops18h 55m

$752

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Thu 10/22

3:35 pm-4:00 pm

2 stops18h 25m

Bilbao

Tue 11/3

11:35 am-8:20 pm

2 stops14h 45m

$753

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 6/30

9:20 pm-11:15 pm

1 stop19h 55m

Bilbao

Wed 7/8

7:40 am-9:05 pm

1 stop19h 25m

$755

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 7/12

8:05 pm-5:55 pm

1 stop15h 50m

Bilbao

Fri 7/24

12:30 pm-9:53 pm

1 stop15h 23m

$757

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 7/6

5:20 pm-11:55 am

1 stop12h 35m

Bilbao

Thu 7/16

8:20 am-4:34 pm

1 stop14h 14m

$759

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 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 $701 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	11h 25m
Direct flights	None

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.

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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 9 as of May 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 18%, KLM with 16%, and Lufthansa with 15%.

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 3,220 reviews	Search Iberia flights
United Airlines	PriceFrom $393	Free Cancellation	Rating 7.4 9,753 reviews	Search United Airlines flights
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.1 11,642 reviews	Search American Airlines flights
Lufthansa	PriceFrom $453	Free Cancellation	Rating 6.8 8,032 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $468	Free Cancellation	Rating 7.2 2,261 reviews	Search TAP AIR PORTUGAL flights
Delta	PriceFrom $547	Free Cancellation	Rating 7.9 8,423 reviews	Search Delta flights
KLM	PriceFrom $559	Free Cancellation	Rating 7.8 1,522 reviews	Search KLM flights
Air Europa	PriceFrom $714	Free Cancellation	Rating 7.0 614 reviews	Search Air Europa flights
LEVEL	PriceFrom $897	Free Cancellation	Rating 0.0 0 reviews	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 $325

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 8/28. 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 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.

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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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