IAD - BIO

$470 Find Cheap Flights from Washington, D.C. 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
$565
Typical prices: $645-$1,062
SWISS
Sun 11/4Sun 11/18
IAD - BIO • 1 stop
Cheapest one-way
$470
Typical prices: $465-$569
Multiple Airlines
Wed 10/3
IAD - BIO • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. Dulles Intl Airport and Bilbao. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
24 weeks
in advance
Our data shows that travelers who book at least 24 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 32% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Newark (EWR)
Cheapest • Avg $559 (round-trip)
Madrid Barajas (MAD)
Shortest trip • 12h 34m (one-way)
Insights
Insights
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We hope you love your trip to Bilbao!
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Flight Deals

Cheap Flights from Washington, D.C. to Bilbao (IAD-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

Wed, Nov 4 - Wed, Nov 18
SWISS Logo
8:10 pm - 9:20 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
19h 10m1 stop Zurich
SWISS Logo
9:50 am - 5:00 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
13h 10m1 stop Zurich
$565SWISS
Sun, Oct 4 - Tue, Oct 20
Air France Logo
9:45 pm - 5:30 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
13h 45m1 stop Paris Charles de Gaulle
Air France Logo
7:10 am - 4:05 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
14h 55m1 stop Paris Charles de Gaulle
$572Air France
Mon, Nov 30 - Mon, Dec 7
Iberia Logo
5:50 pm - 12:50 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
13h 00m1 stop Madrid Barajas
Iberia Logo
5:05 pm - 3:40 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
28h 35m1 stop London Heathrow
$575Iberia
Tue, Nov 3 - Fri, Nov 27
Lufthansa Logo
10:55 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
17h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:30 am - 8:05 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
18h 35m1 stop Munich Franz Josef Strauss
$607Lufthansa
Tue, Nov 3 - Fri, Nov 27
Lufthansa Logo
10:55 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
17h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:30 am - 9:25 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
19h 55m2 stops Munich Franz Josef Strauss Charlotte Douglas
$618Lufthansa
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
5:35 pm - 11:25 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
23h 50m2 stops Brussels Bruxelles-National Munich Franz Josef Strauss
United Airlines Logo
7:15 am - 7:25 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
18h 10m1 stop Munich Franz Josef Strauss
$638United Airlines
Wed, Nov 11 - Sun, Nov 15
Lufthansa Logo
10:55 pm - 5:45 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
12h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:45 am - 3:55 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
15h 10m1 stop Frankfurt am Main
$646Lufthansa
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
5:35 pm - 11:25 pmIAD  Washington, D.C. Dulles Intl-BIO Bilbao
23h 50m2 stops Brussels Bruxelles-National Munich Franz Josef Strauss
United Airlines Logo
7:15 am - 12:58 amBIO  Bilbao-IAD Washington, D.C. Dulles Intl
23h 43m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$648United Airlines
Wed, Oct 14 - Sun, Nov 1
TAP AIR PORTUGAL Logo
5:45 pm - 11:30 amIAD  Washington, D.C. Dulles Intl-BIO Bilbao
11h 45m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:40 pm - 3:15 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
26h 35m1 stop Lisbon Humberto Delgado
$654TAP AIR PORTUGAL
Wed, Oct 14 - Sun, Nov 1
TAP AIR PORTUGAL Logo
5:45 pm - 11:30 amIAD  Washington, D.C. Dulles Intl-BIO Bilbao
11h 45m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:40 pm - 3:15 pmBIO  Bilbao-IAD Washington, D.C. Dulles Intl
26h 35m1 stop Lisbon Humberto Delgado
$684TAP AIR PORTUGAL
Booking Insights

Price, demand and travel trends for Washington, D.C. Dulles Intl Airport to Bilbao flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Washington, D.C. Dulles Intl Airport to Bilbao with more confidence.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Bilbao?

Round-trip flights from Washington, D.C. Dulles Intl Airport to Bilbao start at $565. Prices are below average for this route right now, with typical round-trip fares ranging from $645 to $1,062. The lowest price found in the past 5 days was $565 on SWISS.

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

Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Bilbao, it is 14% cheaper than the average day. Friday is the most expensive day with flight prices 35% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Bilbao?

•January is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Bilbao at $545 round-trip.
•July ($1,036) and May ($963) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 90% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Washington, D.C. Dulles Intl Airport to Bilbao the cheapest?

Flights from Washington, D.C. Dulles Intl Airport to Bilbao are cheapest 24 weeks before departure. Booking in this window typically costs about 31% 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. Dulles Intl Airport to Bilbao flights

Low season

December

Cheapest flight

$470
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 29% increase in price.
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. Dulles Intl Airport to Bilbao flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Bilbao?

    Flights from Washington, D.C. Dulles Intl Airport to Bilbao usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Bilbao (BIO).

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Bilbao?

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

    • Economy Class
    • Premium Economy Class
    • Business Class

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

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

    • Lisbon Humberto Delgado (LIS) - 44% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 17% of one-stop connections
    • Frankfurt am Main (FRA) - 12% of one-stop connections
    • Madrid Barajas (MAD) - 12% of one-stop connections

    Lisbon Humberto Delgado (LIS) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 37% on the Washington, D.C. Dulles Intl Airport to Bilbao route. Wednesday is the cheapest departure day at $691 round-trip on average, while Friday is the most expensive at $1,081, a difference of $390. 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 expensive are last-minute Washington, D.C. Dulles Intl Airport to Bilbao flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 4% below the route average of $800. Booking late can sometimes save money on this route, but inventory is limited.

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

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Bilbao takes 0h 00m, covering 3,757 miles.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport 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 are flight prices from Washington, D.C. Dulles Intl Airport to Bilbao looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Bilbao are currently in line with typical prices for this route. Average one-way fares are about $505.

  • How much time can I save by choosing a different layover airport from Washington, D.C. Dulles Intl Airport to Bilbao?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 11h 21m, compared with 12h 34m via Madrid Barajas (MAD) and 12h 54m via Frankfurt am Main (FRA).

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

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

  • 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

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Bilbao flight?

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Bilbao range from $645 to $1,062, with an average of $800 over the past 12 months. Anything below $645 counts as a good deal.

Your guide to booking Washington, D.C. Dulles Intl Airport to Bilbao flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Friday. On this route, Wednesday flights average $691 - about $390 less than Friday (36% 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 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Bilbao trip for January. Fares historically average $545 round-trip in that month - typically $491 less than the most expensive month, which is July (based on the last 12 months).

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

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