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Cheap flights from Boston to Bilbao from $295

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 3/18. 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.
Lufthansa Logo
8:40 pm - 9:55 pm
BOS
-
BIO
19h 15m
1 stop
Lufthansa Logo
11:35 am - 6:35 pm
BIO
-
BOS
13h 00m
1 stop
$315Lufthansa
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
8:40 pm - 4:10 pm
BOS
-
BIO
13h 30m
2 stops
Multiple Airlines Logo
7:25 am - 6:35 pm
BIO
-
BOS
17h 10m
1 stop
$337Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Iberia Logo
4:45 pm - 8:30 am
BOS
-
BIO
9h 45m
1 stop
Iberia Logo
9:15 am - 3:15 pm
BIO
-
BOS
12h 00m
1 stop
$342Iberia
Wed, Feb 4 - Tue, Feb 10
Multiple Airlines Logo
3:35 pm - 4:10 pm
BOS
-
BIO
18h 35m
2 stops
Multiple Airlines Logo
11:35 am - 6:35 pm
BIO
-
BOS
13h 00m
1 stop
$343Multiple Airlines
Wed, Feb 4 - Tue, Feb 10
SWISS Logo
10:10 pm - 8:55 pm
BOS
-
BIO
16h 45m
1 stop
SWISS Logo
11:35 am - 9:20 pm
BIO
-
BOS
14h 45m
2 stops
$345SWISS
Mon, Mar 2 - Tue, Mar 17
Iberia Logo
11:40 pm - 10:55 pm
BOS
-
BIO
18h 15m
1 stop
Iberia Logo
10:05 pm - 9:55 pm
BIO
-
BOS
28h 50m
1 stop
$347Iberia
Tue, Mar 10 - Mon, Mar 16
Iberia Logo
5:10 pm - 1:00 pm
BOS
-
BIO
13h 50m
2 stops
Iberia Logo
1:35 pm - 10:48 pm
BIO
-
BOS
15h 13m
2 stops
$348Iberia
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
3:35 pm - 12:50 pm
BOS
-
BIO
15h 15m
2 stops
Multiple Airlines Logo
6:50 pm - 6:35 pm
BIO
-
BOS
29h 45m
1 stop
$352Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
United Airlines Logo
8:40 pm - 6:05 pm
BOS
-
BIO
15h 25m
1 stop
United Airlines Logo
11:35 am - 7:35 pm
BIO
-
BOS
13h 00m
1 stop
$356United Airlines
Sun, Mar 1 - Tue, Mar 17
Delta Logo
8:30 pm - 5:20 pm
BOS
-
BIO
14h 50m
1 stop
Delta Logo
7:25 am - 5:20 pm
BIO
-
BOS
14h 55m
1 stop
$357Delta
Mon, Mar 2 - Tue, Mar 17

Lufthansa flights from Boston to Bilbao

Our best Lufthansa deals on Boston to Bilbao flight tickets
Lufthansa
Feb 25
BOS8:40 pmBoston Logan Intl
19h 15m
1 stop
BIO9:55 pmBilbao
Mar 4
BIO11:35 amBilbao
13h 00m
1 stop
BOS6:35 pmBoston Logan Intl
$315
Lufthansa
Feb 22
BOS8:40 pmBoston Logan Intl
19h 15m
1 stop
BIO9:55 pmBilbao
Mar 3
BIO11:35 amBilbao
13h 00m
1 stop
BOS6:35 pmBoston Logan Intl
$361
Lufthansa
Mar 3
BOS8:40 pmBoston Logan Intl
19h 15m
1 stop
BIO9:55 pmBilbao
Mar 20
BIO6:45 amBilbao
12h 25m
1 stop
BOS2:10 pmBoston Logan Intl
$363

Iberia flights from Boston to Bilbao

Our best Iberia deals on Boston to Bilbao flight tickets
Iberia
Jan 20
BOS4:45 pmBoston Logan Intl
9h 45m
1 stop
BIO8:30 amBilbao
Jan 27
BIO9:00 amBilbao
17h 55m
1 stop
BOS8:55 pmBoston Logan Intl
$339
Iberia
Feb 4
BOS4:45 pmBoston Logan Intl
9h 45m
1 stop
BIO8:30 amBilbao
Feb 10
BIO9:15 amBilbao
12h 00m
1 stop
BOS3:15 pmBoston Logan Intl
$342
Iberia
Jan 20
BOS12:16 pmBoston Logan Intl
14h 14m
2 stops
BIO8:30 amBilbao
Jan 27
BIO11:25 amBilbao
15h 30m
1 stop
BOS8:55 pmBoston Logan Intl
$344

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 January 14, 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

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 2/25

8:40 pm-9:55 pm

1 stop19h 15m

Bilbao

Wed 3/4

11:35 am-6:35 pm

1 stop13h 00m

$315

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 2/25

8:40 pm-4:10 pm

2 stops13h 30m

Bilbao

Wed 3/4

7:25 am-6:35 pm

1 stop17h 10m

$337

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 2/4

4:45 pm-8:30 am

1 stop9h 45m

Bilbao

Tue 2/10

9:15 am-3:15 pm

1 stop12h 00m

$342

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 2/4

3:35 pm-4:10 pm

2 stops18h 35m

Bilbao

Tue 2/10

11:35 am-6:35 pm

1 stop13h 00m

$343

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 3/2

10:10 pm-8:55 pm

1 stop16h 45m

Bilbao

Tue 3/17

11:35 am-9:20 pm

2 stops14h 45m

$345

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Tue 3/10

11:40 pm-10:55 pm

1 stop18h 15m

Bilbao

Mon 3/16

10:05 pm-9:55 pm

1 stop28h 50m

$347

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Wed 2/25

5:10 pm-1:00 pm

2 stops13h 50m

Bilbao

Wed 3/4

1:35 pm-10:48 pm

2 stops15h 13m

$348

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 2/9

3:35 pm-12:50 pm

2 stops15h 15m

Bilbao

Mon 2/16

6:50 pm-6:35 pm

1 stop29h 45m

$352

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Sun 3/1

8:40 pm-6:05 pm

1 stop15h 25m

Bilbao

Tue 3/17

11:35 am-7:35 pm

1 stop13h 00m

$356

BostonBilbao

BOS - BIO

BOSBIO

Boston Logan Intl

Mon 3/2

8:30 pm-5:20 pm

1 stop14h 50m

Bilbao

Tue 3/17

7:25 am-5:20 pm

1 stop14h 55m

$357

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 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 $529, 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 March is your next best option. Flight prices from Boston to Bilbao during March average around $556.

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 $670 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 $524 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

9h 25m

Direct flights

None
The fastest flight from Boston to Bilbao takes 9h 25m
There are no direct flights from Boston to Bilbao. There are no popular flight routes from Boston to Bilbao.
Search flight deals

  • 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?

  • 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
3,087 reviews
Search Iberia flights
United AirlinesPriceFrom $393Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights
DeltaPriceFrom $424Free CancellationRating
7.9
8,046 reviews
Search Delta flights
American AirlinesPriceFrom $439Free CancellationRating
7.2
11,128 reviews
Search American Airlines flights
LufthansaPriceFrom $453Free CancellationRating
6.8
7,715 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $468Free CancellationRating
7.1
2,121 reviews
Search TAP AIR PORTUGAL flights
KLMPriceFrom $516Free CancellationRating
7.7
1,439 reviews
Search KLM flights
LEVELPriceFrom $523Free CancellationRating
0.0
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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