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Cheap flights from Boston to Bilbao from $226

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 10/21. 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
11:35 pm - 10:15 amBOS  Boston Logan Intl-BIO Bilbao
28h 40m1 stop Barcelona-El Prat
LEVEL Logo
10:50 pm - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
28h 15m1 stop Barcelona-El Prat
$610LEVEL
Sun, Oct 4 - Tue, Oct 13
Multiple Airlines Logo
8:50 pm - 8:15 amBOS  Boston Logan Intl-BIO Bilbao
29h 25m2 stops Reykjavik Keflavik Intl Barcelona-El Prat
Multiple Airlines Logo
10:50 pm - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
28h 15m1 stop Barcelona-El Prat
$613Multiple Airlines
Sun, Oct 4 - Tue, Oct 20
Multiple Airlines Logo
8:50 pm - 8:15 amBOS  Boston Logan Intl-BIO Bilbao
29h 25m2 stops Reykjavik Keflavik Intl Barcelona-El Prat
Multiple Airlines Logo
10:50 pm - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
28h 15m1 stop Barcelona-El Prat
$614Multiple Airlines
Sun, Oct 4 - Tue, Oct 20
LEVEL Logo
11:35 pm - 8:15 amBOS  Boston Logan Intl-BIO Bilbao
26h 40m1 stop Barcelona-El Prat
LEVEL Logo
7:50 pm - 9:05 pmBIO  Bilbao-BOS Boston Logan Intl
31h 15m1 stop Barcelona-El Prat
$616LEVEL
Sun, Oct 4 - Tue, Oct 13
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
$648Lufthansa
Sun, Sep 20 - Wed, Sep 30
Iberia Logo
9:20 pm - 10:05 pmBOS  Boston Logan Intl-BIO Bilbao
18h 45m1 stop Madrid Barajas
Iberia Logo
9:15 am - 7:50 pmBIO  Bilbao-BOS Boston Logan Intl
16h 35m1 stop Madrid Barajas
$656Iberia
Sun, Oct 4 - Tue, Oct 20
United Airlines Logo
7:38 am - 5:55 pmBOS  Boston Logan Intl-BIO Bilbao
28h 17m2 stops Newark Munich Franz Josef Strauss
United Airlines Logo
11:55 am - 5:40 pmBIO  Bilbao-BOS Boston Logan Intl
11h 45m1 stop Munich Franz Josef Strauss
$671United Airlines
Sun, Oct 4 - Wed, Oct 14
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 - 3:40 pmBIO  Bilbao-BOS Boston Logan Intl
14h 25m2 stops Munich Franz Josef Strauss Frankfurt am Main
$677Lufthansa
Sun, Sep 20 - Wed, Sep 30
United Airlines Logo
8:05 pm - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
21h 20m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:50 am - 4:46 pmBIO  Bilbao-BOS Boston Logan Intl
15h 56m2 stops Frankfurt am Main Newark
$680United Airlines
Sun, Oct 4 - Tue, Oct 20
Iberia Logo
5:40 pm - 12:45 pmBOS  Boston Logan Intl-BIO Bilbao
13h 05m1 stop Madrid Barajas
Iberia Logo
5:35 pm - 4:10 pmBIO  Bilbao-BOS Boston Logan Intl
28h 35m1 stop Madrid Barajas
$805Iberia
Sat, Sep 12 - Fri, Sep 18

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LEVEL flights from Boston to Bilbao

Our best LEVEL deals on Boston to Bilbao flight tickets
LEVEL
Oct 4
BOS11:35 pmBoston Logan Intl
28h 40m
1 stop
BIO10:15 amBilbao
Oct 13
BIO10:50 pmBilbao
28h 15m
1 stop
BOS9:05 pmBoston Logan Intl
$610
LEVEL
Oct 4
BOS11:35 pmBoston Logan Intl
26h 40m
1 stop
BIO8:15 amBilbao
Oct 13
BIO7:50 pmBilbao
31h 15m
1 stop
BOS9:05 pmBoston Logan Intl
$616
LEVEL
Sep 13
BOS11:35 pmBoston Logan Intl
10h 50m
1 stop
BIO4:25 pmBilbao
Sep 24
BIO1:20 pmBilbao
13h 45m
1 stop
BOS9:05 pmBoston Logan Intl
$640

Air Canada flights from Boston to Bilbao

Our best Air Canada deals on Boston to Bilbao flight tickets
Air Canada
Oct 4
BOS6:50 pmBoston Logan Intl
39h 10m
2 stops
BIO4:00 pmBilbao
Oct 20
BIO7:15 amBilbao
32h 40m
2 stops
BOS9:55 amBoston Logan Intl
$653
Air Canada
Oct 18
BOS10:40 amBoston Logan Intl
25h 15m
2 stops
BIO5:55 pmBilbao
Oct 27
BIO7:30 amBilbao
31h 47m
2 stops
BOS10:17 amBoston Logan Intl
$678
Air Canada
Aug 17
BOS5:45 amBoston Logan Intl
25h 35m
2 stops
BIO1:20 pmBilbao
Aug 24
BIO2:10 pmBilbao
54h 31m
2 stops
BOS2:41 pmBoston Logan Intl
$753

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 16, 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

Sun 10/4

11:35 pm-10:15 am

1 stop28h 40m

Bilbao

Tue 10/13

10:50 pm-9:05 pm

1 stop28h 15m

$610

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

8:50 pm-8:15 am

2 stops29h 25m

Bilbao

Tue 10/20

10:50 pm-9:05 pm

1 stop28h 15m

$613

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

8:50 pm-8:15 am

2 stops29h 25m

Bilbao

Tue 10/20

10:50 pm-9:05 pm

1 stop28h 15m

$614

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

11:35 pm-8:15 am

1 stop26h 40m

Bilbao

Tue 10/13

7:50 pm-9:05 pm

1 stop31h 15m

$616

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 9/20

8:05 pm-5:55 pm

1 stop15h 50m

Bilbao

Wed 9/30

7:15 am-5:40 pm

1 stop16h 25m

$648

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

9:20 pm-10:05 pm

1 stop18h 45m

Bilbao

Tue 10/20

9:15 am-7:50 pm

1 stop16h 35m

$656

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

7:38 am-5:55 pm

2 stops28h 17m

Bilbao

Wed 10/14

11:55 am-5:40 pm

1 stop11h 45m

$671
Quickest round-trip

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 9/20

8:05 pm-5:55 pm

1 stop15h 50m

Bilbao

Wed 9/30

7:15 am-3:40 pm

2 stops14h 25m

$677

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sun 10/4

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Tue 10/20

6:50 am-4:46 pm

2 stops15h 56m

$680

BostonBilbao

BOS Boston Logan Intl - BIO Bilbao

BOSBIO

Boston Logan Intl

Sat 9/12

5:40 pm-12:45 pm

1 stop13h 05m

Bilbao

Fri 9/18

5:35 pm-4:10 pm

1 stop28h 35m

$805

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 $610.

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 $744 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.
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 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?

  • 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
3,255 reviews
Search Iberia flights
United AirlinesPriceFrom $393Free CancellationRating
7.4
10,106 reviews
Search United Airlines flights
LufthansaPriceFrom $463Free CancellationRating
6.8
8,197 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $471Free CancellationRating
7.2
2,371 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $495Free CancellationRating
7.1
11,947 reviews
Search American Airlines flights
KLMPriceFrom $611Free CancellationRating
7.8
1,560 reviews
Search KLM flights
Air FrancePriceFrom $663Free CancellationRating
7.5
1,646 reviews
Search Air France flights
DeltaPriceFrom $683Free CancellationRating
7.8
8,505 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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