WAS - BIO

$253 Find Cheap Flights from Washington, D.C. to Bilbao - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$604
Typical prices: $698-$1,113
Royal Air Maroc
Thu 11/29Wed 12/12
IAD - BIO • 1 stop
Cheapest one-way
$672
Typical prices: $466-$718
Air France
Sun 12/16
IAD - BIO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Bilbao. You'll need to take a connecting flight to reach the destination.
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Top routes
IAD - BIO
Cheapest • 26% average savings
DCA - BIO
Most popular
Insights
Insights
When to book
24 weeks
in advance
Our data shows that travelers who book at least 24 weeks in advance save around 28% compared to booking last minute.
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Insights
When to travel
January
Cheapest • 35% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Casablanca Mohamed V (CMN)
Cheapest • Avg $612 (round-trip)
Newark (EWR)
Shortest trip • 11h 29m (one-way)
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Flight Deals

Cheap Flights from Washington, D.C. to Bilbao (WAS-BIO)

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

Recent round-trip flight deals from Washington, D.C. to Bilbao

Sun, Nov 29 - Sat, Dec 12
Royal Air Maroc Logo
9:05 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
15h 40m1 stop Casablanca Mohamed V
Royal Air Maroc Logo
7:45 pm - 7:05 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
29h 20m1 stop Casablanca Mohamed V
$604Royal Air Maroc
Sun, Nov 29 - Mon, Dec 14
TAP AIR PORTUGAL Logo
10:30 pm - 6:35 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
14h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:20 pm - 2:40 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
25h 20m1 stop Lisbon Humberto Delgado
$655TAP AIR PORTUGAL
Mon, Mar 22 - Mon, Mar 29
TAP AIR PORTUGAL Logo
6:25 pm - 5:55 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
18h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
12:25 pm - 3:10 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
32h 45m1 stop Lisbon Humberto Delgado
$670TAP AIR PORTUGAL
Mon, Mar 22 - Tue, Mar 30
TAP AIR PORTUGAL Logo
6:25 pm - 5:55 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
18h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:50 pm - 8:35 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
31h 45m1 stop Lisbon Humberto Delgado
$674TAP AIR PORTUGAL
Tue, Apr 27 - Sun, May 2
Multiple Airlines Logo
5:00 pm - 12:45 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
13h 45m1 stop Madrid Barajas
Multiple Airlines Logo
7:30 pm - 8:35 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
31h 05m1 stop Lisbon Humberto Delgado
$679Multiple Airlines
Tue, Apr 27 - Sun, May 2
Multiple Airlines Logo
9:55 am - 5:55 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
26h 00m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
7:30 pm - 8:35 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
31h 05m1 stop Lisbon Humberto Delgado
$686Multiple Airlines
Wed, Mar 24 - Tue, Mar 30
Lufthansa Logo
11:55 pm - 5:45 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
12h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:50 am - 3:55 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
15h 05m1 stop Frankfurt am Main
$698Lufthansa
Tue, Mar 23 - Tue, Mar 30
Lufthansa Logo
11:55 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
17h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:50 am - 3:55 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
15h 05m1 stop Frankfurt am Main
$701Lufthansa
Mon, Mar 22 - Mon, Mar 29
United Airlines Logo
12:35 pm - 11:00 amIAD  Washington, D.C. Dulles Intl-BIO Bilbao
17h 25m2 stops Newark Munich Franz Josef Strauss
United Airlines Logo
6:50 am - 4:45 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
39h 55m2 stops Frankfurt am Main Zurich
$756United Airlines
Tue, Dec 1 - Fri, Dec 18
United Airlines Logo
12:38 pm - 11:00 amIAD  Washington, D.C. Dulles Intl-BIO Bilbao
16h 22m2 stops Newark Munich Franz Josef Strauss
United Airlines Logo
7:30 am - 9:28 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
19h 58m2 stops Munich Franz Josef Strauss Charlotte Douglas
$798United Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. 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 Washington, D.C. to Bilbao?

Round-trip flights from Washington, D.C. to Bilbao typically range from $698 to $1,113. The lowest price found in the past 5 days was $604, on Royal Air Maroc.

What is the cheapest Washington, D.C. to Bilbao flight route?

Washington, D.C. Dulles Intl Airport (IAD) to Bilbao (BIO) is the cheapest Washington, D.C. to Bilbao route, averaging $822 round-trip. Other Washington, D.C. to Bilbao routes average $1,399, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Bilbao?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Washington, D.C. to Bilbao. It’s 10% cheaper than the average day, while Friday is the most expensive, with prices 23% higher.

What’s the cheapest month to fly from Washington, D.C. to Bilbao?

•January is the cheapest month to fly from Washington, D.C. to Bilbao at $533 round-trip.
•December ($1,319) and July ($1,040) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 147% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. to Bilbao the cheapest?

Flights from Washington, D.C. to Bilbao are cheapest 24 weeks before departure. Booking in this window typically costs about 28% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Washington, D.C. to Bilbao flights

Low season

January

Cheapest flight

$604
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 90% increase in travelers.
Round-trip flight from Washington, D.C. Dulles Intl Airport to Bilbao

When to book flights from Washington, D.C. to Bilbao

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. to Bilbao?

    Three cabin classes are available on flights from Washington, D.C. to Bilbao:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Washington, D.C. to Bilbao?

    A nonstop flight from Washington, D.C. to Bilbao takes 00m, covering 3,739 miles.

  • Do I need a passport to fly from Washington, D.C. 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 Washington, D.C. to Bilbao flight?

    Round-trip flights from Washington, D.C. to Bilbao range from $698 to $1,113, with an average of $826 over the past 12 months. Anything below $698 counts as a good deal.

  • How expensive are last-minute Washington, D.C. to Bilbao flights?

    Last-minute fares on this route (booked within two weeks of departure) are 12% below the route average of $826. Booking late can sometimes save you money, but inventory is limited.

  • How are flight prices from Washington, D.C. to Bilbao looking right now?

    One-way fares from Washington, D.C. to Bilbao are currently higher than usual. Average one-way flight prices are about $1,383, which is 171% above 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 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 Washington, D.C. to Bilbao?

    Flights from Washington, D.C. to Bilbao may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Bilbao (BIO).

  • Which airports do connecting flights from Washington, D.C. to Bilbao pass through?

    One-stop flights from Washington, D.C. to Bilbao most commonly connect through:

    • Lisbon Humberto Delgado (LIS) - 36% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 17% of one-stop connections
    • Madrid Barajas (MAD) - 16% of one-stop connections
    • Frankfurt am Main (FRA) - 12% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. to Bilbao?

    Yes. Flexible dates can save you up to 27% on flights from Washington, D.C. to Bilbao. Monday is the cheapest departure day at $749 round-trip on average, while Friday is the most expensive at $1,016, a difference of $267.

    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 Washington, D.C. to Bilbao?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 11h 29m, compared with 12h 32m via Paris Charles de Gaulle (CDG) and 12h 48m via Madrid Barajas (MAD).

  • What is the time difference between Washington, D.C. and Bilbao?

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

Your guide to booking Washington, D.C. 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 Friday. On this route, Monday flights average $749, about $267 less than Friday fares (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 24 weeks before you fly. On this route, that window historically saves about 28% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Bilbao trip for January. Fares historically average $533 round-trip in that month - typically $786 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Washington, D.C. to Bilbao

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