BOS - BIO

$349 Find Cheap Flights from Boston to Bilbao - Compare and Save

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Everything you should know

Cheapest round-trip
$577
Typical prices: $700-$1,078
Multiple Airlines
Sun 11/4Sun 11/11
BOS - BIO • 2 stops
Cheapest one-way
$349
Typical prices: $407-$565
Multiple Airlines
Sat 12/15
BOS - BIO • 3 stops
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
10 weeks
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 46% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Munich Franz Josef Strauss (MUC)
Cheapest • Avg $693 (round-trip)
Newark (EWR)
Shortest trip • 11h 06m (one-way)
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Insights
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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

Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
5:15 pm - 4:50 pmBOS  Boston Logan Intl-BIO Bilbao
17h 35m2 stops Dublin Barcelona-El Prat
Multiple Airlines Logo
7:05 am - 7:05 pmBIO  Bilbao-BOS Boston Logan Intl
18h 00m2 stops Barcelona-El Prat Dublin
$577Multiple Airlines
Fri, Feb 19 - Thu, Feb 25
Multiple Airlines Logo
8:00 pm - 5:40 pmBOS  Boston Logan Intl-BIO Bilbao
15h 40m2 stops Madrid Barajas Sevilla
Multiple Airlines Logo
7:15 am - 8:00 pmBIO  Bilbao-BOS Boston Logan Intl
18h 45m2 stops Sevilla Madrid Barajas
$595Multiple Airlines
Tue, Nov 24 - Mon, Nov 30
American Airlines Logo
5:33 pm - 12:50 pmBOS  Boston Logan Intl-BIO Bilbao
13h 17m2 stops New York John F Kennedy Intl Madrid Barajas
American Airlines Logo
9:35 pm - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
26h 50m1 stop Madrid Barajas
$610American Airlines
Mon, Jan 4 - Mon, Jan 18
Iberia Logo
8:00 pm - 12:50 pmBOS  Boston Logan Intl-BIO Bilbao
10h 50m1 stop Madrid Barajas
Iberia Logo
6:45 am - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
17h 40m1 stop Madrid Barajas
$626Iberia
Mon, Jan 4 - Mon, Jan 18
Iberia Logo
8:00 pm - 12:50 pmBOS  Boston Logan Intl-BIO Bilbao
10h 50m1 stop Madrid Barajas
Iberia Logo
6:45 am - 6:33 pmBIO  Bilbao-BOS Boston Logan Intl
17h 48m2 stops Madrid Barajas New York John F Kennedy Intl
$631Iberia
Tue, Oct 20 - Tue, Oct 27
Lufthansa Logo
8:05 pm - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
21h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
11:45 am - 7:35 pmBIO  Bilbao-BOS Boston Logan Intl
12h 50m1 stop Munich Franz Josef Strauss
$665Lufthansa
Tue, Oct 6 - Tue, Oct 27
Lufthansa Logo
8:05 pm - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
21h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:30 am - 7:35 pmBIO  Bilbao-BOS Boston Logan Intl
17h 05m1 stop Munich Franz Josef Strauss
$665Lufthansa
Tue, Nov 24 - Mon, Nov 30
American Airlines Logo
8:00 pm - 8:30 amBOS  Boston Logan Intl-BIO Bilbao
30h 30m1 stop Madrid Barajas
American Airlines Logo
9:35 pm - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
26h 50m1 stop Madrid Barajas
$667American Airlines
Sun, Oct 4 - Fri, Oct 23
United Airlines Logo
8:05 pm - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
21h 20m1 stop 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
$670United Airlines
Tue, Oct 6 - Tue, Oct 27
United Airlines Logo
6:43 pm - 11:25 pmBOS  Boston Logan Intl-BIO Bilbao
22h 42m2 stops Chicago O'Hare Intl 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
$675United Airlines
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.

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, Monday is the cheapest day of the week to fly from Boston to Bilbao. It’s 28% cheaper than the average day, while Saturday is the most expensive, with prices 19% higher.

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

•March is the cheapest month to fly from Boston to Bilbao at $495 round-trip.
•July ($1,058) and April ($843) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 113% 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 10 weeks before departure. Booking in this window typically costs about 15% 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

$349
Beat the crowds with an average 94% 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 $700 to $1,078, with an average of $917 over the past 12 months. Anything below $700 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 7% below the route average of $917. 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 in line with typical prices for this route. Average one-way fares are about $473.

  • 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) - 29% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 23% of one-stop connections
    • Amsterdam Schiphol (AMS) - 22% of one-stop connections
    • Barcelona-El Prat (BCN) - 11% 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. Monday is the cheapest departure day at $664 round-trip on average, while Saturday is the most expensive at $1,098, a difference of $434.

    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 Newark (EWR) gives the shortest average 1-stop total travel time at 11h 06m, compared with 11h 22m via Paris Charles de Gaulle (CDG) and 11h 37m via Barcelona-El Prat (BCN).

  • 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 Monday departure and avoid flying on Saturday. On this route, Monday flights average $664, about $434 less than Saturday fares (40% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 15% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Bilbao trip for March. Fares historically average $495 round-trip in that month - typically $563 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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