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

Vueling, TAP AIR PORTUGAL, and Aer Lingus are the most popular carriers operating from Boston Logan Intl to Bilbao

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 61% 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.

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 July 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.

$191 Cheap Flights from Boston to Bilbao in 2025

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Find the cheapest flights from Boston to Bilbao

Round-trip

One-way

Last minute

Cheap round-trip flights

11:00 pm - 6:20 pmBOS-BIO

13h 20m1 stop

8:55 am - 10:10 pmBIO-BOS

19h 15m1 stop

$323

Find Deal

Tue, Sep 23 - Sun, Oct 5

11:00 pm - 6:20 pmBOS-BIO

13h 20m1 stop

7:10 am - 9:15 pmBIO-BOS

20h 05m1 stop

$324

Find Deal

Tue, Sep 23 - Mon, Oct 6

6:30 pm - 10:45 amBOS-BIO

10h 15m1 stop

7:15 am - 5:40 pmBIO-BOS

16h 25m1 stop

$365United Airlines

Find Deal

Tue, Sep 23 - Tue, Oct 7

11:00 pm - 11:00 pmBOS-BIO

18h 00m1 stop

7:00 am - 9:15 pmBIO-BOS

20h 15m1 stop

$367Iberia

Find Deal

Mon, Sep 22 - Tue, Oct 7

4:30 pm - 8:30 amBOS-BIO

10h 00m1 stop

2:25 pm - 9:15 pmBIO-BOS

12h 50m1 stop

$368Iberia

Find Deal

Wed, Sep 24 - Thu, Oct 2

2:40 pm - 10:45 amBOS-BIO

14h 05m2 stops

11:50 am - 5:40 pmBIO-BOS

11h 50m1 stop

$370United Airlines

Find Deal

Tue, Sep 23 - Thu, Oct 9

9:59 am - 10:25 amBOS-BIO

18h 26m2 stops

7:10 am - 7:02 pmBIO-BOS

17h 52m2 stops

$401Delta

Find Deal

Mon, Sep 22 - Wed, Oct 8

9:59 am - 10:25 amBOS-BIO

18h 26m2 stops

7:10 am - 4:00 pmBIO-BOS

14h 50m2 stops

$402Delta

Find Deal

Wed, Sep 24 - Thu, Oct 2

8:05 pm - 11:25 pmBOS-BIO

21h 20m1 stop

6:35 pm - 8:10 pmBIO-BOS

31h 35m2 stops

$423Lufthansa

Find Deal

Tue, Sep 23 - Mon, Oct 6

8:05 pm - 10:50 pmBOS-BIO

20h 45m2 stops

6:35 pm - 5:40 pmBIO-BOS

29h 05m1 stop

$425Lufthansa

Find Deal

Sun, Sep 21 - Mon, Oct 6

SWISS flights from Boston to Bilbao

Our best SWISS deals on Boston to Bilbao flight tickets

SWISS

Sep 24

BOS9:40 pmBoston Logan Intl

16h 30m

1 stop

BIO8:10 pmBilbao

Oct 2

BIO9:00 pmBilbao

24h 25m

1 stop

BOS3:25 pmBoston Logan Intl

$377

Find similar

SWISS

Sep 22

BOS5:05 pmBoston Logan Intl

21h 10m

1 stop

BIO8:15 pmBilbao

Oct 6

BIO2:10 pmBilbao

31h 15m

2 stops

BOS3:25 pmBoston Logan Intl

$409

Find similar

Finnair flights from Boston to Bilbao

Our best Finnair deals on Boston to Bilbao flight tickets

Finnair

Sep 17

BOS9:20 pmBoston Logan Intl

19h 55m

1 stop

BIO11:15 pmBilbao

Sep 25

BIO6:45 amBilbao

22h 05m

2 stops

BOS10:50 pmBoston Logan Intl

$381

Find similar

Finnair

Sep 17

BOS9:20 pmBoston Logan Intl

19h 55m

1 stop

BIO11:15 pmBilbao

Sep 25

BIO6:45 amBilbao

19h 05m

1 stop

BOS7:50 pmBoston Logan Intl

$397

Find similar

Finnair

Sep 17

BOS9:20 pmBoston Logan Intl

19h 55m

1 stop

BIO11:15 pmBilbao

Sep 25

BIO6:45 amBilbao

22h 05m

2 stops

BOS10:50 pmBoston Logan Intl

$407

Find similar

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

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 March is your next best option. Flight prices from Boston to Bilbao during March average around $581.

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 $700 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 $581 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

Best Price Found	$191
Fastest flight time	9h 25m
Direct flights	None
Airports in Bilbao	1 airport

The best one-way flight to Bilbao from Boston in the past 72 hours is $191. The best round-trip flight deal from Boston to Bilbao found on momondo in the last 72 hours is $323.

The fastest flight from Boston to Bilbao takes 9h 25m

There are no direct flights from Boston to Bilbao. Popular non-direct route for this connection is Boston Logan Intl Airport - Bilbao Airport.

There is 1 airport near Bilbao: Bilbao (BIO)

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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 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 8 as of July 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 36% of the total bookings. Other popular airlines include Lufthansa with 15%, KLM with 12%, and Delta 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
LEVEL	PriceFrom $418	Free Cancellation	Rating 4.0 4 reviews	Search LEVEL flights
Delta	PriceFrom $424	Free Cancellation	Rating 8.0 7,950 reviews	Search Delta flights
TAP AIR PORTUGAL	PriceFrom $428	Free Cancellation	Rating 7.1 1,917 reviews	Search TAP AIR PORTUGAL flights
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Iberia	PriceFrom $498	Free Cancellation	Rating 7.0 2,830 reviews	Search Iberia flights
KLM	PriceFrom $532	Free Cancellation	Rating 7.8 1,372 reviews	Search KLM flights
Lufthansa	PriceFrom $574	Free Cancellation	Rating 6.8 7,196 reviews	Search Lufthansa flights
United Airlines	PriceFrom $616	Free Cancellation	Rating 7.4 8,849 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.