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Washington, D.C.

$386+ Cheap flights from Bilbao (BIO) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — WAS
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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Cheap flight deals from Bilbao to Washington, D.C.

Cheapest flights from Bilbao to Washington, D.C.
Explore the most affordable flight options available from Bilbao to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This Booking.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:15 pm
BIO
-
IAD
1 stop32h 10m
TAP AIR PORTUGAL
Mon 9/215:40 pm
IAD
-
BIO
1 stop18h 20m
TAP AIR PORTUGAL
Deal found 7/23$518
This British Airways deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:15 am
BIO
-
IAD
1 stop15h 40m
British Airways
Mon 9/75:00 pm
IAD
-
BIO
1 stop17h 55m
British Airways
Deal found 7/20$535
This American Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:45 am
BIO
-
IAD
1 stop18h 10m
American Airlines
Mon 9/145:00 pm
IAD
-
BIO
1 stop17h 55m
American Airlines
Deal found 7/21$540
This British Airways deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:15 am
BIO
-
DCA
2 stops17h 58m
Multiple Airlines
Mon 9/1410:17 am
DCA
-
BIO
2 stops16h 13m
Multiple Airlines
Deal found 7/21$540
This American Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:45 am
BIO
-
IAD
1 stop18h 10m
Multiple Airlines
Mon 9/71:23 pm
IAD
-
BIO
2 stops13h 07m
Multiple Airlines
Deal found 7/20$541
This British Airways deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:15 am
BIO
-
IAD
2 stops15h 42m
British Airways
Mon 9/145:00 pm
IAD
-
BIO
1 stop17h 55m
British Airways
Deal found 7/21$545
This British Airways deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:15 am
BIO
-
DCA
2 stops18h 13m
Multiple Airlines
Mon 9/2110:17 am
DCA
-
BIO
2 stops16h 13m
Multiple Airlines
Deal found 7/23$546
This Rumbo deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:15 am
BIO
-
IAD
1 stop12h 15m
Iberia
Sat 10/316:50 pm
IAD
-
BIO
1 stop17h 05m
Iberia
Deal found 7/23$549
This Iberia deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:15 am
BIO
-
DCA
2 stops16h 44m
Iberia
Sat 10/312:56 pm
DCA
-
BIO
2 stops12h 34m
Iberia
Deal found 7/23$563
This Iberia deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:45 am
BIO
-
IAD
1 stop18h 10m
Iberia
Mon 10/266:50 pm
IAD
-
BIO
1 stop13h 00m
Iberia
Deal found 7/22$574
This Rumbo deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:30 pm
BIO
-
IAD
1 stop11h 25m
Iberia
Mon 9/2110:25 pm
IAD
-
BIO
2 stops18h 50m
Iberia
Deal found 7/23$578
This Iberia deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:45 am
BIO
-
DCA
2 stops20h 14m
Iberia
Mon 10/263:47 pm
DCA
-
BIO
2 stops16h 03m
Iberia
Deal found 7/22$580

Find flight deals from Bilbao to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$518
(Booking.com)

One-way from

$386
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$896
Provider with most accurate pricing for Bilbao-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-Washington, D.C. (WAS) flights.
Search Deals
From Bilbao to Washington, D.C. (WAS)
Search Deals
One-way flight from Bilbao to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bilbao to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 24, 2026.
Use the filters below to find and compare flights from Bilbao to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BilbaoWashington, D.C.

BIO - IAD

BIOIAD

Bilbao

Thu 9/3

9:15 am-6:55 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 9/7

5:00 pm-4:55 pm

1 stop17h 55m

$535

BilbaoWashington, D.C.

BIO - IAD

BIOIAD

Bilbao

Thu 9/10

9:15 am-6:55 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 9/14

5:00 pm-4:55 pm

1 stop17h 55m

$535

BilbaoWashington, D.C.

BIO - IAD

BIOIAD

Bilbao

Thu 9/10

6:45 am-6:55 pm

1 stop18h 10m

Washington, D.C. Dulles Intl

Mon 9/14

5:00 pm-4:55 pm

1 stop17h 55m

$540

BilbaoWashington, D.C.

BIO - IAD

BIOIAD

Bilbao

Thu 9/17

1:30 pm-6:55 pm

1 stop11h 25m

Washington, D.C. Dulles Intl

Mon 9/21

5:00 pm-4:55 pm

1 stop17h 55m

$540

BilbaoWashington, D.C.

BIO - DCA

BIODCA

Bilbao

Thu 9/17

9:15 am-9:28 pm

2 stops18h 13m

Washington, D.C. Reagan-National

Mon 9/21

10:17 am-8:30 am

2 stops16h 13m

$546

BilbaoWashington, D.C.

BIO - DCA

BIODCA

Bilbao

Wed 10/21

9:15 am-7:59 pm

2 stops16h 44m

Washington, D.C. Reagan-National

Sat 10/31

2:56 pm-8:30 am

2 stops12h 34m

$563

BilbaoWashington, D.C.

BIO - IAD

BIOIAD

Bilbao

Thu 10/22

9:15 am-6:55 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 10/26

10:45 pm-4:55 pm

2 stops13h 10m

$594

BilbaoWashington, D.C.

BIO - DCA

BIODCA

Bilbao

Thu 10/22

6:45 am-8:59 pm

2 stops20h 14m

Washington, D.C. Reagan-National

Mon 10/26

12:56 pm-12:50 pm

2 stops18h 54m

$598

BilbaoBaltimore

BIO - BWI

BIOBWI

Bilbao

Thu 10/22

9:15 am-7:40 pm

2 stops16h 25m

Baltimore/Washington

Mon 10/26

9:35 pm-10:50 pm

2 stops20h 15m

$634

BilbaoWashington, D.C.

BIO - IAD

BIOIAD

Bilbao

Fri 10/2

5:35 pm-3:30 pm

1 stop27h 55m

Washington, D.C. Dulles Intl

Thu 10/8

8:25 pm-12:45 pm

1 stop10h 20m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 31 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Bilbao-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bilbao-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bilbao-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bilbao-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bilbao to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Bilbao with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bilbao to Washington, D.C.

What is the cheapest month to book a flight from Bilbao to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Bilbao to Washington, D.C. (average of $400). Flying from Bilbao to Washington, D.C. in January is currently the most expensive (average of $1,075). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Bilbao to Washington, D.C.?

Airfare is below average for this route at the moment.
Bilbao to Washington, D.C. flights typically cost between $666 and $841 in September.
The cheapest round-trip price found within the last 5 days was $518 on TAP AIR PORTUGAL (Sep 17-Sep 21).

Related info for your journey

Find useful and relevant information for your journey from Bilbao to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Bilbao to Washington, D.C.?

    For a flight from Bilbao to Washington, D.C., you will be flying from Bilbao. Bilbao (BIO) is just 3.0 mi from the center of the city. Bilbao is the only Bilbao airport and it handles 0 outbound flights to Washington, D.C. per day. 0 airlines have flights to Washington, D.C. from Bilbao on a regular basis.

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

    British Airways, American Airlines, and Iberia can get you from Bilbao to Washington, D.C. in just under 15h 40m. Your travel time can differ by up to 2h 30m. Bilbao and Washington, D.C. are separated by a distance of 3757 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Bilbao to Washington, D.C.?

    The most popular flight routes from Bilbao to Washington, D.C. are Bilbao - Baltimore/Washington, Bilbao - Washington, D.C. Reagan-National and Bilbao - Washington, D.C. Dulles Intl.

  • Can I find deals for flights from Bilbao to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Bilbao to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to Washington, D.C..

  • Can I find deals for business class flights from Bilbao to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Bilbao to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bilbao to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Bilbao to Washington, D.C. (average of $400). Flying from Bilbao to Washington, D.C. in January is currently the most expensive (average of $1,075). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge
Largo

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Alternative routes for Bilbao to Washington, D.C.

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