BIO - BOS

$190 Find Cheap Flights from Bilbao to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bilbao to Boston departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bilbao to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bilbao to Boston, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$312
Overall average: $527
Multiple Airlines
Mon 3/2Tue 3/17
BIO - BOS • 1 stop
Cheapest one-way
$190
Typical prices: $362-$395
Multiple Airlines
Wed 4/22
BIO - BOS • 1 stop
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 22% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bilbao to Boston (BIO-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bilbao to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bilbao to Boston

Mon, Mar 2 - Tue, Mar 17
Multiple Airlines Logo
10:05 pm - 8:55 pm
BIO
-
BOS
28h 50m
1 stop
Multiple Airlines Logo
11:40 pm - 9:35 pm
BOS
-
BIO
16h 55m
1 stop
$312Multiple Airlines
Mon, Mar 2 - Tue, Mar 17
Multiple Airlines Logo
8:55 am - 8:55 pm
BIO
-
BOS
18h 00m
1 stop
Multiple Airlines Logo
11:40 pm - 10:05 pm
BOS
-
BIO
17h 25m
2 stops
$336Multiple Airlines
Mon, Mar 2 - Tue, Mar 17
Multiple Airlines Logo
7:10 am - 8:55 pm
BIO
-
BOS
19h 45m
1 stop
Multiple Airlines Logo
11:40 pm - 5:30 pm
BOS
-
BIO
12h 50m
2 stops
$343Multiple Airlines
Mon, Feb 16 - Mon, Feb 23
Finnair Logo
6:45 am - 7:50 pm
BIO
-
BOS
19h 05m
1 stop
Finnair Logo
9:20 pm - 11:15 pm
BOS
-
BIO
19h 55m
1 stop
$394Finnair
Thu, Feb 19 - Tue, Feb 24
American Airlines Logo
1:35 pm - 10:48 pm
BIO
-
BOS
15h 13m
2 stops
American Airlines Logo
11:55 am - 8:30 am
BOS
-
BIO
14h 35m
2 stops
$408American Airlines
Sun, Feb 15 - Mon, Feb 23
Iberia Logo
9:35 pm - 7:50 pm
BIO
-
BOS
28h 15m
1 stop
Iberia Logo
9:20 pm - 4:55 pm
BOS
-
BIO
13h 35m
1 stop
$412Iberia
Thu, Feb 19 - Tue, Feb 24
Finnair Logo
6:45 am - 7:50 pm
BIO
-
BOS
19h 05m
1 stop
Finnair Logo
9:20 pm - 11:15 pm
BOS
-
BIO
19h 55m
1 stop
$419Finnair
Mon, Feb 16 - Mon, Feb 23
American Airlines Logo
1:35 pm - 7:50 pm
BIO
-
BOS
12h 15m
1 stop
American Airlines Logo
9:35 pm - 4:55 pm
BOS
-
BIO
13h 20m
2 stops
$423American Airlines
Thu, Feb 19 - Tue, Feb 24
Finnair Logo
6:45 am - 10:48 pm
BIO
-
BOS
22h 03m
2 stops
Finnair Logo
9:20 pm - 11:15 pm
BOS
-
BIO
19h 55m
1 stop
$424Finnair
Mon, Mar 2 - Tue, Mar 17
Iberia Logo
8:55 am - 8:55 pm
BIO
-
BOS
18h 00m
1 stop
Iberia Logo
11:40 pm - 5:05 pm
BOS
-
BIO
12h 25m
1 stop
$427Iberia
Booking Insights

KAYAK's insights & trends for Bilbao to Boston flights

Get data-powered insights and trends into flights from Bilbao to Boston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Bilbao to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bilbao to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bilbao to Boston is January, where tickets cost $509 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $813 and $785 respectively.

How far in advance should I book a flight from Bilbao to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bilbao to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Bilbao to Boston, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$190
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Bilbao to Boston

When to book flights from Bilbao to Boston

Are your dates flexible? Find out the best times to travel from Bilbao to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Bilbao to Boston

  • What is the cheapest flight from Bilbao to Boston?

    In the last 3 days, the lowest price for a flight from Bilbao to Boston was $190 for a one-way ticket and $312 for a round-trip.

  • Do I need a passport to fly between Bilbao and Boston?

    Yes, you’ll need a passport to travel to Boston from Bilbao.

  • Which aircraft models fly most regularly from Bilbao to Boston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Bilbao to Boston?

    oneworld is the only airline alliance operating flights between Bilbao and Boston.

  • How does KAYAK find such low prices on flights from Bilbao to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bilbao to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bilbao to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Bilbao is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bilbao to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Bilbao with another airline. Booking your flights between Bilbao and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bilbao to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Bilbao up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Bilbao to Boston

 
See real verified KAYAK customer reviews for airlines flying from Bilbao to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bilbao to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
IberiaOverall score based on 3084 reviews
7.7Crew
7.1Boarding
6.4Food
6.7Comfort
6.6Entertainment
Airline reviews

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

8.0 ExcellentAnonymous, Jan 2026
BCN - BOS
Read more Iberia reviews

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

The crew was super friendly and helpful. The food was quite good. An overall positive experience.

A more organized boarding experience and better food would have made the experience better.

why can't planes be boarded from back to front?? everything was great otherwise

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

Boarding was easy, the flight left on time and even landed 20 minutes early. The food was plentiful and really good! The crew was kind & helpful. Overall it was an exceptional experience!

The flight was safe, confortable and convenient. Thank you. I hope to come back soon!

temperature was too cold there should be free blankets, seat are very uncomfortable, entertainment is limited.

Basic service for a decent price, all amenities are à la cart

Everything you need to know for your flight from Bilbao to Boston

Information on your arrival and departure airports

Bilbao (BIO)
Boston (BOS)