BOS - BIO

$342 Find Cheap Flights from Boston to Bilbao - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$566
Typical prices: $744-$1,085
Iberia
Wed 2/7Fri 2/16
BOS - BIO • 1 stop
Cheapest one-way
$321
Typical prices: $441-$604
Multiple Airlines
Thu 3/15
BOS - BIO • 2 stops
Nonstop flights
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 travel
Cheapest • 49% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $708 (round-trip)
Shortest trip • 11h 06m (one-way)
Insights
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

Sun, Feb 7 - Fri, Feb 12
Iberia Logo
8:00 pm - 12:50 pmBOS  Boston Logan Intl-BIO Bilbao
10h 50m1 stop Madrid Barajas
Iberia Logo
9:15 am - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
15h 10m1 stop Madrid Barajas
$566Iberia
Sun, Feb 7 - Thu, Feb 11
Iberia Logo
8:00 pm - 12:50 pmBOS  Boston Logan Intl-BIO Bilbao
10h 50m1 stop Madrid Barajas
Iberia Logo
9:15 am - 6:25 pmBIO  Bilbao-BOS Boston Logan Intl
15h 10m1 stop Madrid Barajas
$566Iberia
Tue, Dec 1 - Tue, Dec 8
Multiple Airlines Logo
10:45 pm - 1:50 pmBOS  Boston Logan Intl-BIO Bilbao
33h 05m2 stops Porto Valencia
Multiple Airlines Logo
6:40 pm - 2:40 pmBIO  Bilbao-BOS Boston Logan Intl
26h 00m1 stop Lisbon Humberto Delgado
$653Multiple Airlines
Sun, Apr 4 - Sun, Apr 11
TAP AIR PORTUGAL Logo
10:15 pm - 5:55 pmBOS  Boston Logan Intl-BIO Bilbao
37h 40m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:30 pm - 2:45 pmBIO  Bilbao-BOS Boston Logan Intl
25h 15m1 stop Lisbon Humberto Delgado
$667TAP AIR PORTUGAL
Wed, Mar 17 - Tue, Mar 23
Turkish Airlines Logo
9:00 pm - 10:55 amBOS  Boston Logan Intl-BIO Bilbao
32h 55m1 stop Istanbul
Turkish Airlines Logo
11:55 am - 7:05 pmBIO  Bilbao-BOS Boston Logan Intl
36h 10m1 stop Istanbul
$671Turkish Airlines
Sun, Apr 4 - Sun, Apr 11
TAP AIR PORTUGAL Logo
5:45 pm - 11:40 amBOS  Boston Logan Intl-BIO Bilbao
11h 55m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:30 pm - 9:00 pmBIO  Bilbao-BOS Boston Logan Intl
31h 30m2 stops Lisbon Humberto Delgado Porto
$675TAP AIR PORTUGAL
Tue, Dec 1 - Tue, Dec 8
Lufthansa Logo
8:40 pm - 9:55 pmBOS  Boston Logan Intl-BIO Bilbao
19h 15m1 stop Munich Franz Josef Strauss
Lufthansa Logo
11:45 am - 6:35 pmBIO  Bilbao-BOS Boston Logan Intl
12h 50m1 stop Munich Franz Josef Strauss
$799Lufthansa
Mon, Feb 8 - Thu, Feb 11
United Airlines Logo
8:40 pm - 11:10 pmBOS  Boston Logan Intl-BIO Bilbao
20h 30m1 stop Munich Franz Josef Strauss
United Airlines Logo
7:30 am - 6:35 pmBIO  Bilbao-BOS Boston Logan Intl
17h 05m1 stop Munich Franz Josef Strauss
$813United Airlines
Mon, Feb 8 - Thu, Feb 11
United Airlines Logo
3:32 pm - 11:10 pmBOS  Boston Logan Intl-BIO Bilbao
25h 38m2 stops Newark Munich Franz Josef Strauss
United Airlines Logo
6:45 am - 5:58 pmBIO  Bilbao-BOS Boston Logan Intl
17h 13m2 stops Frankfurt am Main Toronto Pearson Intl
$833United Airlines
Wed, Apr 14 - Mon, Apr 26
Lufthansa Logo
8:05 pm - 11:00 pmBOS  Boston Logan Intl-BIO Bilbao
20h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main
Lufthansa Logo
6:40 pm - 3:40 pmBIO  Bilbao-BOS Boston Logan Intl
27h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main
$857Lufthansa
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 $744 to $1,085. The lowest price found in the past 5 days was $566, 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 15% higher.

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

•January is the cheapest month to fly from Boston to Bilbao at $487 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 117% 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 in the last 2 weeks before departure, based on KAYAK prices tracked over the past 12 months. During this period, fares are 11% below average.

Key details for Boston to Bilbao flights

Low season

January

Cheapest flight

$321
Beat the crowds with an average 88% drop in travelers.
The most popular month to fly with an average 153% increase 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 $744 to $1,085, with an average of $953 over the past 12 months. Anything below $744 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 $953. 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 $499.

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

    Bilbao Airport (BIO) hosts 5 major car rental companies, with daily rates averaging $32 for economy cars. Top options include:

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

  • 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) - 32% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 24% of one-stop connections
    • Amsterdam Schiphol (AMS) - 22% of one-stop connections
    • Lisbon Humberto Delgado (LIS) - 8% 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 $1,103, a difference of $435.

    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 25m 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 $435 less than Saturday fares (39% savings) based on the last 12 months.
  • If you're flexible on your travel dates, booking last minute (within 2 weeks of departure) tends to be around 11% cheaper than the typical fare over the last 12 months, based on KAYAK data.
  • If you can choose when to travel, plan your Boston to Bilbao trip for January. Fares historically average $487 round-trip in that month - typically $571 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