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 33% 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 airport is the most popular layover for flights between Boston and Bilbao?

Madrid (MAD) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

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

TAP AIR PORTUGAL is the most popular carrier operating from Boston Logan Intl to Bilbao

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $811.

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.

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 November 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.

$321 Cheap Flights from Boston to Bilbao in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Bilbao

Round-trip

One-way

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Cheap round-trip flights

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8:00 pm - 12:50 pmBOS Boston Logan Intl-BIO Bilbao

10h 50m1 stop Madrid Barajas

9:15 am - 6:25 pmBIO Bilbao-BOS Boston Logan Intl

15h 10m1 stop Madrid Barajas

$566Iberia

Sun, Feb 7 - Tue, Feb 16

8:00 pm - 12:50 pmBOS Boston Logan Intl-BIO Bilbao

10h 50m1 stop Madrid Barajas

9:15 am - 6:25 pmBIO Bilbao-BOS Boston Logan Intl

15h 10m1 stop Madrid Barajas

$566Iberia

Sun, Feb 7 - Fri, Feb 12

10:45 pm - 1:50 pmBOS Boston Logan Intl-BIO Bilbao

33h 05m2 stops Porto Valencia

6:40 pm - 2:40 pmBIO Bilbao-BOS Boston Logan Intl

26h 00m1 stop Lisbon Humberto Delgado

$653Multiple Airlines

Tue, Dec 1 - Tue, Dec 8

10:15 pm - 5:55 pmBOS Boston Logan Intl-BIO Bilbao

37h 40m1 stop Lisbon Humberto Delgado

7:30 pm - 2:45 pmBIO Bilbao-BOS Boston Logan Intl

25h 15m1 stop Lisbon Humberto Delgado

$667TAP AIR PORTUGAL

Sun, Apr 4 - Sun, Apr 11

9:00 pm - 10:55 amBOS Boston Logan Intl-BIO Bilbao

32h 55m1 stop Istanbul

11:55 am - 7:05 pmBIO Bilbao-BOS Boston Logan Intl

36h 10m1 stop Istanbul

$671Turkish Airlines

Wed, Mar 17 - Tue, Mar 23

5:45 pm - 11:40 amBOS Boston Logan Intl-BIO Bilbao

11h 55m1 stop Lisbon Humberto Delgado

7:30 pm - 9:00 pmBIO Bilbao-BOS Boston Logan Intl

31h 30m2 stops Lisbon Humberto Delgado Porto

$675TAP AIR PORTUGAL

Sun, Apr 4 - Sun, Apr 11

8:40 pm - 9:55 pmBOS Boston Logan Intl-BIO Bilbao

19h 15m1 stop Munich Franz Josef Strauss

11:45 am - 6:35 pmBIO Bilbao-BOS Boston Logan Intl

12h 50m1 stop Munich Franz Josef Strauss

$799Lufthansa

Tue, Dec 1 - Tue, Dec 8

8:40 pm - 11:10 pmBOS Boston Logan Intl-BIO Bilbao

20h 30m1 stop Munich Franz Josef Strauss

7:30 am - 6:35 pmBIO Bilbao-BOS Boston Logan Intl

17h 05m1 stop Munich Franz Josef Strauss

$813United Airlines

Mon, Feb 8 - Thu, Feb 11

8:50 am - 9:55 pmBOS Boston Logan Intl-BIO Bilbao

31h 05m2 stops Newark Munich Franz Josef Strauss

6:45 am - 10:12 amBIO Bilbao-BOS Boston Logan Intl

33h 27m2 stops Frankfurt am Main Toronto Pearson Intl

$833United Airlines

Tue, Feb 9 - Tue, Feb 16

8:05 pm - 11:00 pmBOS Boston Logan Intl-BIO Bilbao

20h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main

6:40 pm - 3:40 pmBIO Bilbao-BOS Boston Logan Intl

27h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main

$857Lufthansa

Wed, Apr 14 - Mon, Apr 26

Cheap last minute flights

Enter your travel dates to find the best prices.

10:50 pm - 11:25 amBOS Boston Logan Intl-BIO Bilbao

54h 35m2 stops Porto Lisbon Humberto Delgado

12:10 pm - 8:15 pmBIO Bilbao-BOS Boston Logan Intl

14h 05m1 stop Lisbon Humberto Delgado

$853TAP AIR PORTUGAL

Sun, Nov 8 - Thu, Nov 12

10:10 pm - 5:55 pmBOS Boston Logan Intl-BIO Bilbao

13h 45m1 stop Lisbon Humberto Delgado

12:25 pm - 8:30 pmBIO Bilbao-BOS Boston Logan Intl

38h 05m2 stops Lisbon Humberto Delgado Porto

$903TAP AIR PORTUGAL

Sat, Nov 7 - Sat, Nov 14

10:10 pm - 5:55 pmBOS Boston Logan Intl-BIO Bilbao

13h 45m1 stop Lisbon Humberto Delgado

12:25 pm - 7:55 pmBIO Bilbao-BOS Boston Logan Intl

13h 30m1 stop Lisbon Humberto Delgado

$945TAP AIR PORTUGAL

Sat, Nov 7 - Sat, Nov 14

7:35 pm - 4:55 pmBOS Boston Logan Intl-BIO Bilbao

15h 20m1 stop Madrid Barajas

9:15 am - 6:25 pmBIO Bilbao-BOS Boston Logan Intl

15h 10m1 stop Madrid Barajas

$1,034Multiple Airlines

Sat, Nov 7 - Sat, Nov 14

8:00 pm - 10:55 amBOS Boston Logan Intl-BIO Bilbao

32h 55m1 stop Istanbul

5:15 pm - 6:05 pmBIO Bilbao-BOS Boston Logan Intl

30h 50m1 stop Istanbul

$1,041Turkish Airlines

Sun, Nov 8 - Thu, Nov 12

7:35 pm - 4:55 pmBOS Boston Logan Intl-BIO Bilbao

15h 20m1 stop Madrid Barajas

9:15 am - 11:44 pmBIO Bilbao-BOS Boston Logan Intl

20h 29m2 stops Madrid Barajas New York John F Kennedy Intl

$1,042British Airways

Sat, Nov 7 - Sat, Nov 14

5:30 pm - 12:30 pmBOS Boston Logan Intl-BIO Bilbao

13h 00m2 stops New York John F Kennedy Intl Madrid Barajas

1:15 pm - 11:44 pmBIO Bilbao-BOS Boston Logan Intl

16h 29m2 stops Madrid Barajas New York John F Kennedy Intl

$1,073American Airlines

Sat, Nov 7 - Sat, Nov 14

7:30 pm - 5:25 pmBOS Boston Logan Intl-BIO Bilbao

15h 55m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

7:10 am - 6:27 pmBIO Bilbao-BOS Boston Logan Intl

17h 17m2 stops Paris Charles de Gaulle Minneapolis St Paul

$1,098Delta

Sat, Nov 7 - Sat, Nov 14

9:30 am - 9:55 pmBOS Boston Logan Intl-BIO Bilbao

30h 25m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

7:30 am - 6:35 pmBIO Bilbao-BOS Boston Logan Intl

17h 05m1 stop Munich Franz Josef Strauss

$1,136United Airlines

Sun, Nov 8 - Thu, Nov 12

10:25 am - 4:10 pmBOS Boston Logan Intl-BIO Bilbao

23h 45m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National

7:30 am - 10:37 pmBIO Bilbao-BOS Boston Logan Intl

21h 07m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$1,147Air Canada

Sun, Nov 8 - Thu, Nov 12

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Turkish Airlines flights from Boston to Bilbao

Our best Turkish Airlines deals on Boston to Bilbao flight tickets

Turkish Airlines

Mar 17

BOS9:00 pmBoston Logan Intl

32h 55m

1 stop

BIO10:55 amBilbao

Mar 23

BIO11:55 amBilbao

36h 10m

1 stop

BOS7:05 pmBoston Logan Intl

$671

Turkish Airlines

Apr 1

BOS9:50 pmBoston Logan Intl

31h 20m

1 stop

BIO11:10 amBilbao

Apr 8

BIO6:25 pmBilbao

31h 30m

1 stop

BOS7:55 pmBoston Logan Intl

$679

Turkish Airlines

Nov 8

BOS8:00 pmBoston Logan Intl

32h 55m

1 stop

BIO10:55 amBilbao

Nov 12

BIO5:15 pmBilbao

30h 50m

1 stop

BOS6:05 pmBoston Logan Intl

$1,041

TAP AIR PORTUGAL flights from Boston to Bilbao

Our best TAP AIR PORTUGAL deals on Boston to Bilbao flight tickets

TAP AIR PORTUGAL

Apr 4

BOS10:15 pmBoston Logan Intl

37h 40m

1 stop

BIO5:55 pmBilbao

Apr 11

BIO7:30 pmBilbao

25h 15m

1 stop

BOS2:45 pmBoston Logan Intl

$667

TAP AIR PORTUGAL

Apr 4

BOS5:45 pmBoston Logan Intl

11h 55m

1 stop

BIO11:40 amBilbao

Apr 11

BIO7:30 pmBilbao

31h 30m

2 stops

BOS9:00 pmBoston Logan Intl

$675

TAP AIR PORTUGAL

Apr 8

BOS5:45 pmBoston Logan Intl

11h 45m

1 stop

BIO11:30 amBilbao

Apr 12

BIO12:25 pmBilbao

13h 55m

1 stop

BOS8:20 pmBoston Logan Intl

$680

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 2/7

8:00 pm-12:50 pm

1 stop10h 50m

Bilbao

Tue 2/16

9:15 am-6:25 pm

1 stop15h 10m

$566

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 2/7

8:00 pm-12:50 pm

1 stop10h 50m

Bilbao

Fri 2/12

9:15 am-6:25 pm

1 stop15h 10m

$566

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 12/1

10:45 pm-1:50 pm

2 stops33h 05m

Bilbao

Tue 12/8

6:40 pm-2:40 pm

1 stop26h 00m

$653

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 4/4

10:15 pm-5:55 pm

1 stop37h 40m

Bilbao

Sun 4/11

7:30 pm-2:45 pm

1 stop25h 15m

$667

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 3/17

9:00 pm-10:55 am

1 stop32h 55m

Bilbao

Tue 3/23

11:55 am-7:05 pm

1 stop36h 10m

$671

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 4/4

5:45 pm-11:40 am

1 stop11h 55m

Bilbao

Sun 4/11

7:30 pm-9:00 pm

2 stops31h 30m

$675

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 12/1

8:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Tue 12/8

11:45 am-6:35 pm

1 stop12h 50m

$799

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Mon 2/8

8:40 pm-11:10 pm

1 stop20h 30m

Bilbao

Thu 2/11

7:30 am-6:35 pm

1 stop17h 05m

$813

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 2/9

8:50 am-9:55 pm

2 stops31h 05m

Bilbao

Tue 2/16

6:45 am-10:12 am

2 stops33h 27m

$833

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 4/14

8:05 pm-11:00 pm

2 stops20h 55m

Bilbao

Mon 4/26

6:40 pm-3:40 pm

2 stops27h 00m

$857

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 $662 to $990.
The lowest price recently found on this route was $653.

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Boston is in January. Flight prices, which tend to average around $487, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in January, then February is your next best option. Flight prices from Boston to Bilbao during February average around $604.

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 $799 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 $734 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

Best Price Found	$321
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to Bilbao from Boston in the past 72 hours is $321. The best round-trip flight deal from Boston to Bilbao found on momondo in the last 72 hours is $566.

The fastest flight from Boston to Bilbao takes 11h 55m

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 11h 55m.
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 November 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 25% of the total bookings. Other popular airlines include Delta with 22%, Iberia with 19%, and Lufthansa with 12%.

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 $397	Free Cancellation	Rating 7.0 3,240 reviews	Search Iberia flights
Lufthansa	PriceFrom $514	Free Cancellation	Rating 6.8 8,299 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $620	Free Cancellation	Rating 7.2 2,394 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom $645	Free Cancellation	Rating 7.8 1,595 reviews	Search KLM flights
Air France	PriceFrom $663	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
American Airlines	PriceFrom $677	Free Cancellation	Rating 7.0 12,230 reviews	Search American Airlines flights
Delta	PriceFrom $689	Free Cancellation	Rating 7.8 8,696 reviews	Search Delta flights
United Airlines	PriceFrom $695	Free Cancellation	Rating 7.3 10,460 reviews	Search United Airlines flights
Air Europa	PriceFrom $714	Free Cancellation	Rating 7.0 648 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 $321

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 3/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Boston to Bilbao

Cheap round-trip flights

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Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Turkish Airlines flights from Boston to Bilbao

Our best Turkish Airlines deals on Boston to Bilbao flight tickets

TAP AIR PORTUGAL flights from Boston to Bilbao

Our best TAP AIR PORTUGAL 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

Best Price Found

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.

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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