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 37% 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 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 Paris (CDG) have the shortest average one-way travel time: 10h 40m.

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.

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

Lufthansa is the most popular carrier operating from Boston Logan Intl to Bilbao

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.

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 July 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.

$296 Cheap Flights from Boston to Bilbao in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Bilbao

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:00 pm - 10:40 pm

BOS

BIO

17h 40m

2 stops

3:05 pm - 8:20 pm

BIO

BOS

35h 15m

3 stops

$705Multiple Airlines

Sat, Sep 19 - Sat, Sep 26

8:30 pm - 10:45 am

BOS

BIO

32h 15m

1 stop

12:30 pm - 11:59 pm

BIO

BOS

17h 29m

2 stops

$706United Airlines

Mon, Aug 24 - Fri, Sep 4

6:25 pm - 4:00 pm

BOS

BIO

39h 35m

2 stops

11:55 am - 6:07 pm

BIO

BOS

36h 12m

2 stops

$708Air Canada

Mon, Aug 24 - Tue, Sep 8

10:45 pm - 6:05 pm

BOS

BIO

13h 20m

1 stop

12:15 pm - 8:20 pm

BIO

BOS

14h 05m

1 stop

$710TAP AIR PORTUGAL

Sat, Sep 12 - Fri, Sep 18

10:45 pm - 6:05 pm

BOS

BIO

13h 20m

1 stop

12:15 pm - 8:20 pm

BIO

BOS

38h 05m

2 stops

$712TAP AIR PORTUGAL

Sat, Sep 12 - Fri, Sep 18

6:25 pm - 4:00 pm

BOS

BIO

39h 35m

2 stops

6:50 am - 5:42 pm

BIO

BOS

40h 52m

2 stops

$713Air Canada

Mon, Aug 24 - Thu, Sep 10

8:50 pm - 10:40 pm

BOS

BIO

19h 50m

2 stops

1:50 pm - 6:50 pm

BIO

BOS

35h 00m

2 stops

$717Multiple Airlines

Sat, Oct 3 - Sat, Oct 17

5:25 pm - 11:55 am

BOS

BIO

12h 30m

1 stop

8:20 am - 4:31 pm

BIO

BOS

14h 11m

1 stop

$718KLM

Sat, Aug 15 - Tue, Aug 25

8:50 pm - 6:35 pm

BOS

BIO

15h 45m

2 stops

8:55 am - 2:45 pm

BIO

BOS

35h 50m

2 stops

$719Multiple Airlines

Sun, Sep 13 - Thu, Sep 24

8:05 pm - 11:25 pm

BOS

BIO

21h 20m

1 stop

7:15 am - 5:40 pm

BIO

BOS

16h 25m

1 stop

$721United Airlines

Fri, Sep 25 - Tue, Sep 29

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United Airlines flights from Boston to Bilbao

Our best United Airlines deals on Boston to Bilbao flight tickets

United Airlines

Aug 24

BOS8:30 pmBoston Logan Intl

32h 15m

1 stop

BIO10:45 amBilbao

Sep 4

BIO12:30 pmBilbao

17h 29m

2 stops

BOS11:59 pmBoston Logan Intl

$706

United Airlines

Sep 25

BOS8:05 pmBoston Logan Intl

21h 20m

1 stop

BIO11:25 pmBilbao

Sep 29

BIO7:15 amBilbao

16h 25m

1 stop

BOS5:40 pmBoston Logan Intl

$721

United Airlines

Sep 2

BOS2:28 pmBoston Logan Intl

19h 32m

2 stops

BIO4:00 pmBilbao

Sep 8

BIO7:15 amBilbao

13h 55m

2 stops

BOS3:10 pmBoston Logan Intl

$728

Air Canada flights from Boston to Bilbao

Our best Air Canada deals on Boston to Bilbao flight tickets

Air Canada

Aug 24

BOS6:25 pmBoston Logan Intl

39h 35m

2 stops

BIO4:00 pmBilbao

Sep 8

BIO11:55 amBilbao

36h 12m

2 stops

BOS6:07 pmBoston Logan Intl

$708

Air Canada

Aug 24

BOS6:25 pmBoston Logan Intl

39h 35m

2 stops

BIO4:00 pmBilbao

Sep 10

BIO6:50 amBilbao

40h 52m

2 stops

BOS5:42 pmBoston Logan Intl

$713

Air Canada

Aug 24

BOS6:25 pmBoston Logan Intl

39h 35m

2 stops

BIO4:00 pmBilbao

Sep 7

BIO2:10 pmBilbao

54h 31m

2 stops

BOS2:41 pmBoston Logan Intl

$736

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 9/19

11:00 pm-10:40 pm

2 stops17h 40m

Bilbao

Sat 9/26

3:05 pm-8:20 pm

3 stops35h 15m

$705

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 8/24

8:30 pm-10:45 am

1 stop32h 15m

Bilbao

Fri 9/4

12:30 pm-11:59 pm

2 stops17h 29m

$706

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 8/24

6:25 pm-4:00 pm

2 stops39h 35m

Bilbao

Tue 9/8

11:55 am-6:07 pm

2 stops36h 12m

$708

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 9/12

10:45 pm-6:05 pm

1 stop13h 20m

Bilbao

Fri 9/18

12:15 pm-8:20 pm

1 stop14h 05m

$710

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 9/12

10:45 pm-6:05 pm

1 stop13h 20m

Bilbao

Fri 9/18

12:15 pm-8:20 pm

2 stops38h 05m

$712

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 8/24

6:25 pm-4:00 pm

2 stops39h 35m

Bilbao

Thu 9/10

6:50 am-5:42 pm

2 stops40h 52m

$713

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 10/3

8:50 pm-10:40 pm

2 stops19h 50m

Bilbao

Sat 10/17

1:50 pm-6:50 pm

2 stops35h 00m

$717

Quickest round-trip

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 8/15

5:25 pm-11:55 am

1 stop12h 30m

Bilbao

Tue 8/25

8:20 am-4:31 pm

1 stop14h 11m

$718

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 9/13

8:50 pm-6:35 pm

2 stops15h 45m

Bilbao

Thu 9/24

8:55 am-2:45 pm

2 stops35h 50m

$719

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Fri 9/25

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Tue 9/29

7:15 am-5:40 pm

1 stop16h 25m

$721

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 $802 to $1,088.
The lowest price recently found on this route was $705.

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 $738 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

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 10 as of July 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 24% of the total bookings. Other popular airlines include Iberia with 22%, Delta with 20%, and Lufthansa with 14%.

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 $390	Free Cancellation	Rating 7.0 3,256 reviews	Search Iberia flights
United Airlines	PriceFrom $393	Free Cancellation	Rating 7.4 10,034 reviews	Search United Airlines flights
Lufthansa	PriceFrom $463	Free Cancellation	Rating 6.8 8,157 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $468	Free Cancellation	Rating 7.2 2,346 reviews	Search TAP AIR PORTUGAL flights
American Airlines	PriceFrom $495	Free Cancellation	Rating 7.1 11,849 reviews	Search American Airlines flights
KLM	PriceFrom $611	Free Cancellation	Rating 7.8 1,545 reviews	Search KLM flights
Air France	PriceFrom $663	Free Cancellation	Rating 7.5 1,626 reviews	Search Air France flights
Air Europa	PriceFrom $714	Free Cancellation	Rating 7.0 629 reviews	Search Air Europa flights
Delta	PriceFrom $729	Free Cancellation	Rating 7.8 8,488 reviews	Search Delta 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.

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Cheap flights from Boston to Bilbao from $296

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 10/19. 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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United Airlines flights from Boston to Bilbao

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

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

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

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Find better results for your trip to Spain

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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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