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Cheap flights from Boston to Bilbao from $208

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 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
LEVEL Logo
10:55 pm - 8:15 amBOS  Boston Logan Intl-BIO Bilbao
27h 20m1 stop Barcelona-El Prat
LEVEL Logo
7:00 am - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
20h 05m1 stop Barcelona-El Prat
$639LEVEL
Wed, Sep 16 - Wed, Sep 23
LEVEL Logo
10:55 pm - 8:15 amBOS  Boston Logan Intl-BIO Bilbao
27h 20m1 stop Barcelona-El Prat
LEVEL Logo
1:20 pm - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
13h 45m1 stop Barcelona-El Prat
$652LEVEL
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
10:55 pm - 4:35 pmBOS  Boston Logan Intl-BIO Bilbao
11h 40m1 stop Barcelona-El Prat
Multiple Airlines Logo
1:35 pm - 6:00 pmBIO  Bilbao-BOS Boston Logan Intl
10h 25m1 stop Madrid Barajas
$662Multiple Airlines
Wed, Oct 21 - Tue, Nov 3
Multiple Airlines Logo
10:40 am - 9:25 amBOS  Boston Logan Intl-BIO Bilbao
16h 45m2 stops Montreal Pierre Elliott Trudeau Intl Zurich
Multiple Airlines Logo
6:40 pm - 5:40 pmBIO  Bilbao-BOS Boston Logan Intl
29h 00m1 stop Munich Franz Josef Strauss
$662Multiple Airlines
Sun, Oct 4 - Mon, Oct 12
Lufthansa Logo
8:05 pm - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
21h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:40 pm - 5:40 pmBIO  Bilbao-BOS Boston Logan Intl
29h 00m1 stop Munich Franz Josef Strauss
$668Lufthansa
Sun, Oct 4 - Mon, Oct 12
Lufthansa Logo
8:05 pm - 5:55 pmBOS  Boston Logan Intl-BIO Bilbao
15h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:15 am - 5:40 pmBIO  Bilbao-BOS Boston Logan Intl
16h 25m1 stop Munich Franz Josef Strauss
$676Lufthansa
Tue, Sep 1 - Wed, Sep 30
United Airlines Logo
5:45 am - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
35h 40m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
7:15 am - 5:40 pmBIO  Bilbao-BOS Boston Logan Intl
16h 25m1 stop Munich Franz Josef Strauss
$677United Airlines
Sun, Sep 20 - Wed, Sep 30
United Airlines Logo
3:35 pm - 10:45 amBOS  Boston Logan Intl-BIO Bilbao
13h 10m1 stop Newark
United Airlines Logo
11:55 am - 5:40 pmBIO  Bilbao-BOS Boston Logan Intl
11h 45m1 stop Munich Franz Josef Strauss
$678United Airlines
Tue, Sep 8 - Wed, Oct 14
KLM Logo
5:30 pm - 3:55 pmBOS  Boston Logan Intl-BIO Bilbao
16h 25m1 stop Madrid Barajas
KLM Logo
8:20 am - 4:40 pmBIO  Bilbao-BOS Boston Logan Intl
14h 20m1 stop Madrid Barajas
$684KLM
Mon, Sep 7 - Thu, Oct 15
KLM Logo
5:30 pm - 11:55 amBOS  Boston Logan Intl-BIO Bilbao
12h 25m1 stop Madrid Barajas
KLM Logo
8:20 am - 4:40 pmBIO  Bilbao-BOS Boston Logan Intl
14h 20m1 stop Madrid Barajas
$684KLM
Mon, Sep 7 - Wed, Oct 14

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Lufthansa flights from Boston to Bilbao

Our best Lufthansa deals on Boston to Bilbao flight tickets
Lufthansa
Oct 4
BOS8:05 pmBoston Logan Intl
21h 20m
1 stop
BIO11:25 pmBilbao
Oct 12
BIO6:40 pmBilbao
29h 00m
1 stop
BOS5:40 pmBoston Logan Intl
$668
Lufthansa
Sep 1
BOS8:05 pmBoston Logan Intl
15h 50m
1 stop
BIO5:55 pmBilbao
Sep 30
BIO7:15 amBilbao
16h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$676
Lufthansa
Aug 16
BOS8:05 pmBoston Logan Intl
15h 50m
1 stop
BIO5:55 pmBilbao
Sep 14
BIO6:40 pmBilbao
27h 00m
2 stops
BOS3:40 pmBoston Logan Intl
$677

United Airlines flights from Boston to Bilbao

Our best United Airlines deals on Boston to Bilbao flight tickets
United Airlines
Aug 11
BOS12:41 pmBoston Logan Intl
16h 04m
1 stop
BIO10:45 amBilbao
Aug 19
BIO12:30 pmBilbao
27h 18m
1 stop
BOS9:48 amBoston Logan Intl
$666
United Airlines
Aug 11
BOS6:00 pmBoston Logan Intl
10h 45m
1 stop
BIO10:45 amBilbao
Aug 19
BIO12:30 pmBilbao
18h 41m
2 stops
BOS1:11 amBoston Logan Intl
$671
United Airlines
Sep 20
BOS5:45 amBoston Logan Intl
35h 40m
2 stops
BIO11:25 pmBilbao
Sep 30
BIO7:15 amBilbao
16h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$677

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Boston to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 9/16

10:55 pm-8:15 am

1 stop27h 20m

Bilbao

Wed 9/23

7:00 am-9:05 pm

1 stop20h 05m

$639

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Thu 9/10

10:55 pm-8:15 am

1 stop27h 20m

Bilbao

Thu 9/17

1:20 pm-9:05 pm

1 stop13h 45m

$652
Quickest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Wed 10/21

10:55 pm-4:35 pm

1 stop11h 40m

Bilbao

Tue 11/3

1:35 pm-6:00 pm

1 stop10h 25m

$662

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

10:40 am-9:25 am

2 stops16h 45m

Bilbao

Mon 10/12

6:40 pm-5:40 pm

1 stop29h 00m

$662

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Mon 10/12

6:40 pm-5:40 pm

1 stop29h 00m

$668

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 9/1

8:05 pm-5:55 pm

1 stop15h 50m

Bilbao

Wed 9/30

7:15 am-5:40 pm

1 stop16h 25m

$676

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 9/20

5:45 am-11:25 pm

2 stops35h 40m

Bilbao

Wed 9/30

7:15 am-5:40 pm

1 stop16h 25m

$677

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Tue 9/8

3:35 pm-10:45 am

1 stop13h 10m

Bilbao

Wed 10/14

11:55 am-5:40 pm

1 stop11h 45m

$678

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Mon 9/7

5:30 pm-3:55 pm

1 stop16h 25m

Bilbao

Thu 10/15

8:20 am-4:40 pm

1 stop14h 20m

$684

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Mon 9/7

5:30 pm-11:55 am

1 stop12h 25m

Bilbao

Wed 10/14

8:20 am-4:40 pm

1 stop14h 20m

$684

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bilbao from

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 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 $683 to $941.
The lowest price recently found on this route was $639.

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 $740 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

10h 10m

Direct flights

None
The fastest flight from Boston to Bilbao takes 10h 10m
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 10h 10m.

  • 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?

  • 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?

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
IberiaPriceFrom $391Free CancellationRating
7.0
3,261 reviews
Search Iberia flights
United AirlinesPriceFrom $393Free CancellationRating
7.4
10,099 reviews
Search United Airlines flights
LufthansaPriceFrom $463Free CancellationRating
6.8
8,173 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $471Free CancellationRating
7.2
2,360 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $495Free CancellationRating
7.1
11,898 reviews
Search American Airlines flights
KLMPriceFrom $611Free CancellationRating
7.8
1,555 reviews
Search KLM flights
Air FrancePriceFrom $663Free CancellationRating
7.5
1,640 reviews
Search Air France flights
DeltaPriceFrom $683Free CancellationRating
7.8
8,499 reviews
Search Delta flights
Air EuropaPriceFrom $714Free CancellationRating
7.0
634 reviews
Search Air Europa flights
LEVELPriceFrom $897Free CancellationRating
0.0
0 reviews
Search LEVEL flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
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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