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BOS - BIO

$217 Find Cheap Flights from Boston to Bilbao - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$537
Typical prices: $735-$1,086
Iberia
Sat 12/1Tue 12/11
BOS - BIO • 1 stop
Cheapest one-way
$217
Typical prices: $430-$594
LEVEL
Thu 10/18
BOS - BIO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Bilbao. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 44% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Zurich (ZRH)
Cheapest • Avg $708 (round-trip)
Newark (EWR)
Shortest trip • 11h 06m (one-way)
Insights
Insights
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We hope you love your trip to Bilbao!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Bilbao (BOS-BIO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Bilbao

Tue, Dec 1 - Fri, Dec 11
Iberia Logo
8:00 pm - 12:50 pmBOS  Boston Logan Intl-BIO Bilbao
10h 50m1 stop Madrid Barajas
Iberia Logo
1:35 pm - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
10h 50m1 stop Madrid Barajas
$537Iberia
Wed, Dec 2 - Fri, Dec 11
Multiple Airlines Logo
8:00 pm - 11:45 amBOS  Boston Logan Intl-BIO Bilbao
9h 45m1 stop Madrid Barajas
Multiple Airlines Logo
1:35 pm - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
10h 50m1 stop Madrid Barajas
$551Multiple Airlines
Fri, Nov 6 - Fri, Nov 13
Iberia Logo
7:35 pm - 12:30 pmBOS  Boston Logan Intl-BIO Bilbao
10h 55m1 stop Madrid Barajas
Iberia Logo
1:35 pm - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
10h 50m1 stop Madrid Barajas
$606Iberia
Sun, Nov 1 - Tue, Nov 17
TAP AIR PORTUGAL Logo
10:10 pm - 6:35 pmBOS  Boston Logan Intl-BIO Bilbao
14h 25m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:40 pm - 2:40 pmBIO  Bilbao-BOS Boston Logan Intl
26h 00m1 stop Lisbon Humberto Delgado
$658TAP AIR PORTUGAL
Sun, Nov 1 - Tue, Nov 17
Turkish Airlines Logo
9:00 pm - 10:55 amBOS  Boston Logan Intl-BIO Bilbao
31h 55m1 stop Istanbul
Turkish Airlines Logo
11:55 am - 6:05 pmBIO  Bilbao-BOS Boston Logan Intl
36h 10m1 stop Istanbul
$670Turkish Airlines
Tue, Dec 1 - Thu, Dec 10
TAP AIR PORTUGAL Logo
6:00 pm - 11:25 amBOS  Boston Logan Intl-BIO Bilbao
11h 25m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
12:10 pm - 8:15 pmBIO  Bilbao-BOS Boston Logan Intl
14h 05m1 stop Lisbon Humberto Delgado
$674TAP AIR PORTUGAL
Tue, Mar 9 - Wed, Mar 17
United Airlines Logo
8:40 pm - 9:55 pmBOS  Boston Logan Intl-BIO Bilbao
19h 15m1 stop Munich Franz Josef Strauss
United Airlines Logo
11:45 am - 7:35 pmBIO  Bilbao-BOS Boston Logan Intl
12h 50m1 stop Munich Franz Josef Strauss
$804United Airlines
Tue, Mar 9 - Fri, Mar 19
United Airlines Logo
8:40 pm - 9:55 pmBOS  Boston Logan Intl-BIO Bilbao
19h 15m1 stop Munich Franz Josef Strauss
United Airlines Logo
11:45 am - 7:35 pmBIO  Bilbao-BOS Boston Logan Intl
12h 50m1 stop Munich Franz Josef Strauss
$804United Airlines
Wed, Mar 10 - Thu, Mar 18
Delta Logo
1:55 pm - 11:30 amBOS  Boston Logan Intl-BIO Bilbao
15h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
7:10 am - 6:27 pmBIO  Bilbao-BOS Boston Logan Intl
16h 17m2 stops Paris Charles de Gaulle New York John F Kennedy Intl
$820Delta
Tue, Mar 9 - Thu, Mar 18
Delta Logo
8:45 pm - 5:25 pmBOS  Boston Logan Intl-BIO Bilbao
14h 40m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
7:10 am - 6:27 pmBIO  Bilbao-BOS Boston Logan Intl
16h 17m2 stops Paris Charles de Gaulle New York John F Kennedy Intl
$820Delta
Booking Insights

Price, demand and travel trends for Boston to Bilbao flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boston to Bilbao?

Round-trip flights from Boston to Bilbao typically range from $735 to $1,086. The lowest price found in the past 5 days was $537, on Iberia.

What's the cheapest day of the week to fly from Boston to Bilbao?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Boston to Bilbao. It’s 30% cheaper than the average day, while Saturday is the most expensive, with prices 17% higher.

What’s the cheapest month to fly from Boston to Bilbao?

•January is the cheapest month to fly from Boston to Bilbao at $528 round-trip.
•July ($1,058) and February ($979) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 100% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Bilbao the cheapest?

Flights from Boston to Bilbao are cheapest 6 weeks before departure. Booking in this window typically costs about 13% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Boston to Bilbao flights

Low season

February

Cheapest flight

$217
Beat the crowds with an average 95% drop in travelers.
One-way flight from Boston to Bilbao

When to book flights from Boston to Bilbao

Are your dates flexible? Find out the best times to travel from Boston to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Bilbao flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Bilbao?

    Three cabin classes are available on flights from Boston to Bilbao:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Boston to Bilbao?

    A nonstop flight from Boston to Bilbao takes 00m, covering 3,348 miles.

  • Do I need a passport to fly from Boston to Bilbao?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Bilbao flight?

    Round-trip flights from Boston to Bilbao range from $735 to $1,086, with an average of $941 over the past 12 months. Anything below $735 counts as a good deal.

  • How expensive are last-minute Boston to Bilbao flights?

    Last-minute fares on this route (booked within two weeks of departure) are 11% below the route average of $941. Booking late can sometimes save you money, but inventory is limited.

  • How are flight prices from Boston to Bilbao looking right now?

    One-way fares from Boston to Bilbao are currently lower than usual. Average one-way flight prices are about $460, which is 6% below the typical average for this route.

  • What car rental options are available at Bilbao Airport (BIO)?

    Bilbao Airport (BIO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • Record go
    • Goldcar Rental SP
    • CLICK RENT
    • Rentbycar
    • Centauro

  • Which airports can I use when flying from Boston to Bilbao?

    Flights from Boston to Bilbao usually depart from Boston Logan Intl (BOS) and arrive at Bilbao (BIO).

  • Which airports do connecting flights from Boston to Bilbao pass through?

    One-stop flights from Boston to Bilbao most commonly connect through:

    • Madrid Barajas (MAD) - 31% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 24% of one-stop connections
    • Amsterdam Schiphol (AMS) - 22% of one-stop connections
    • Barcelona-El Prat (BCN) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Bilbao?

    Yes. Flexible dates can save you up to 40% on flights from Boston to Bilbao. Tuesday is the cheapest departure day at $668 round-trip on average, while Saturday is the most expensive at $1,108, a difference of $440.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Boston to Bilbao?

    Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time at 10h 34m, compared with 11h 06m via Newark (EWR) and 11h 23m via Paris Charles de Gaulle (CDG).

  • What is the time difference between Boston and Bilbao?

    Bilbao is 6 hours ahead of Boston (Central European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Boston to Bilbao flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average $668, about $440 less than Saturday fares (40% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 6 weeks before you fly. On this route, that window historically saves about 13% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Bilbao trip for January. Fares historically average $528 round-trip in that month - typically $530 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Boston to Bilbao

Complete your trip to Bilbao with a hotel stay or car rental

Car rentals in Bilbao
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