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Cheap flights from Boston to Bilbao from $283

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
0 bags

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Find the cheapest flights from Boston to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
10:45 pm - 6:00 pm
BOS
-
BIO
13h 15m
1 stop
TAP AIR PORTUGAL Logo
12:25 pm - 8:20 pm
BIO
-
BOS
13h 55m
2 stops
$739TAP AIR PORTUGAL
Mon, Oct 19 - Wed, Oct 21
TAP AIR PORTUGAL Logo
6:05 pm - 6:00 pm
BOS
-
BIO
17h 55m
1 stop
TAP AIR PORTUGAL Logo
12:25 pm - 8:20 pm
BIO
-
BOS
13h 55m
2 stops
$740TAP AIR PORTUGAL
Mon, Oct 19 - Wed, Oct 21
KLM Logo
5:20 pm - 3:55 pm
BOS
-
BIO
16h 35m
1 stop
KLM Logo
7:10 am - 7:35 pm
BIO
-
BOS
18h 25m
1 stop
$741KLM
Wed, Jul 29 - Thu, Aug 13
Iberia Logo
11:35 pm - 8:15 am
BOS
-
BIO
26h 40m
1 stop
Iberia Logo
9:15 am - 7:50 pm
BIO
-
BOS
16h 35m
1 stop
$743Iberia
Thu, Aug 27 - Sun, Sep 6
Iberia Logo
11:35 pm - 8:15 am
BOS
-
BIO
26h 40m
1 stop
Iberia Logo
9:15 am - 4:10 pm
BIO
-
BOS
12h 55m
1 stop
$744Iberia
Thu, Aug 27 - Sun, Sep 6
Lufthansa Logo
9:30 am - 1:25 pm
BOS
-
BIO
21h 55m
2 stops
Lufthansa Logo
11:55 am - 5:40 pm
BIO
-
BOS
11h 45m
1 stop
$745Lufthansa
Sat, Aug 15 - Tue, Aug 25
United Airlines Logo
8:05 pm - 11:25 pm
BOS
-
BIO
21h 20m
1 stop
United Airlines Logo
6:50 am - 4:48 pm
BIO
-
BOS
15h 58m
2 stops
$746United Airlines
Sat, Aug 15 - Tue, Sep 1
Delta Logo
10:15 am - 9:50 am
BOS
-
BIO
17h 35m
2 stops
Delta Logo
7:10 am - 2:55 pm
BIO
-
BOS
13h 45m
1 stop
$749Delta
Wed, Jul 29 - Thu, Aug 13
United Airlines Logo
9:32 am - 4:00 pm
BOS
-
BIO
24h 28m
2 stops
United Airlines Logo
7:15 am - 5:40 pm
BIO
-
BOS
16h 25m
1 stop
$751United Airlines
Tue, Aug 4 - Tue, Aug 18
United Airlines Logo
7:30 am - 1:20 pm
BOS
-
BIO
23h 50m
2 stops
United Airlines Logo
6:45 am - 9:20 pm
BIO
-
BOS
19h 35m
2 stops
$753United Airlines
Tue, Oct 20 - Sun, Oct 25

Iberia flights from Boston to Bilbao

Our best Iberia deals on Boston to Bilbao flight tickets
Iberia
Aug 27
BOS11:35 pmBoston Logan Intl
26h 40m
1 stop
BIO8:15 amBilbao
Sep 6
BIO9:15 amBilbao
16h 35m
1 stop
BOS7:50 pmBoston Logan Intl
$743
Iberia
Aug 27
BOS11:35 pmBoston Logan Intl
26h 40m
1 stop
BIO8:15 amBilbao
Sep 6
BIO9:15 amBilbao
12h 55m
1 stop
BOS4:10 pmBoston Logan Intl
$744
Iberia
May 25
BOS9:20 pmBoston Logan Intl
19h 55m
1 stop
BIO11:15 pmBilbao
Jun 3
BIO2:25 pmBilbao
12h 35m
1 stop
BOS9:00 pmBoston Logan Intl
$756

United Airlines flights from Boston to Bilbao

Our best United Airlines deals on Boston to Bilbao flight tickets
United Airlines
Aug 15
BOS8:05 pmBoston Logan Intl
21h 20m
1 stop
BIO11:25 pmBilbao
Sep 1
BIO6:50 amBilbao
15h 58m
2 stops
BOS4:48 pmBoston Logan Intl
$746
United Airlines
Aug 4
BOS9:32 amBoston Logan Intl
24h 28m
2 stops
BIO4:00 pmBilbao
Aug 18
BIO7:15 amBilbao
16h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$751
United Airlines
Oct 20
BOS7:30 amBoston Logan Intl
23h 50m
2 stops
BIO1:20 pmBilbao
Oct 25
BIO6:45 amBilbao
19h 35m
2 stops
BOS9:20 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 May 18, 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
Quickest round-trip

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 10/19

10:45 pm-6:00 pm

1 stop13h 15m

Bilbao

Wed 10/21

12:25 pm-8:20 pm

2 stops13h 55m

$739

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 10/19

6:05 pm-6:00 pm

1 stop17h 55m

Bilbao

Wed 10/21

12:25 pm-8:20 pm

2 stops13h 55m

$740

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 7/29

5:20 pm-3:55 pm

1 stop16h 35m

Bilbao

Thu 8/13

7:10 am-7:35 pm

1 stop18h 25m

$741

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Thu 8/27

11:35 pm-8:15 am

1 stop26h 40m

Bilbao

Sun 9/6

9:15 am-7:50 pm

1 stop16h 35m

$743

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Thu 8/27

11:35 pm-8:15 am

1 stop26h 40m

Bilbao

Sun 9/6

9:15 am-4:10 pm

1 stop12h 55m

$744

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 8/15

9:30 am-1:25 pm

2 stops21h 55m

Bilbao

Tue 8/25

11:55 am-5:40 pm

1 stop11h 45m

$745

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sat 8/15

8:05 pm-11:25 pm

1 stop21h 20m

Bilbao

Tue 9/1

6:50 am-4:48 pm

2 stops15h 58m

$746

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 7/29

10:15 am-9:50 am

2 stops17h 35m

Bilbao

Thu 8/13

7:10 am-2:55 pm

1 stop13h 45m

$749

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 8/4

9:32 am-4:00 pm

2 stops24h 28m

Bilbao

Tue 8/18

7:15 am-5:40 pm

1 stop16h 25m

$751

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 10/20

7:30 am-1:20 pm

2 stops23h 50m

Bilbao

Sun 10/25

6:45 am-9:20 pm

2 stops19h 35m

$753

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?

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 $697 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 $527 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 30m

Direct flights

None
The fastest flight from Boston to Bilbao takes 11h 30m
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 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?

  • 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 $386Free CancellationRating
7.0
3,220 reviews
Search Iberia flights
United AirlinesPriceFrom $393Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights
American AirlinesPriceFrom $439Free CancellationRating
7.1
11,650 reviews
Search American Airlines flights
LufthansaPriceFrom $453Free CancellationRating
6.8
8,009 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $468Free CancellationRating
7.2
2,252 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $508Free CancellationRating
7.9
8,447 reviews
Search Delta flights
KLMPriceFrom $559Free CancellationRating
7.8
1,517 reviews
Search KLM flights
Air EuropaPriceFrom $714Free CancellationRating
6.9
608 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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