How long does it take to fly to Bilbao?

Flight times from Washington, D.C. to Bilbao vary, but if you’re flying out of Washington, D.C. and flying into Bilbao (one of the most popular routes), then the duration is 12h 42m on average. Another popular route from Washington, D.C. to Bilbao is flying from Baltimore to Bilbao, which will take roughly 17h 06m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Bilbao?

United Airlines, Lufthansa and TAP AIR PORTUGAL are the top three most popular airlines that fly to Bilbao from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 3 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Washington, D.C. to Bilbao?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 50m.

Which layover airport offers the lowest fares from Washington, D.C. to Bilbao?

Flights via Madrid (MAD) offer the lowest average round-trip price of $683.

Which airport is the most popular layover for flights between Washington, D.C. and Bilbao?

Madrid (MAD) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Washington, D.C. to Bilbao?

Aer Lingus and Lufthansa are the most popular carriers operating from Washington, D.C. to Bilbao

Which layover airport has the shortest travel time from Washington, D.C. to Bilbao?

Flights connecting via Madrid (MAD) have the shortest average one-way travel time: 11h 19m.

When did momondo last update prices for flights from Washington, D.C. to Bilbao Airport?

Prices for flights from Washington, D.C. to Bilbao Airport refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Bilbao Airport?

There are 3 operators available for flights from Washington, D.C. to Bilbao Airport as of October 2026.

How old do you have to be to fly from Washington, D.C. to Bilbao Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Bilbao Airport.

What documentation or ID do you need to fly to Bilbao Airport?

The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$323 Cheap Flights from Washington, D.C. to Bilbao in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Bilbao

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:50 pm - 11:15 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

23h 25m1 stop Madrid Barajas

5:35 pm - 4:20 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

28h 45m1 stop Madrid Barajas

$667Iberia

Wed, Dec 2 - Wed, Dec 9

9:05 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

15h 40m1 stop Casablanca Mohamed V

7:45 pm - 7:05 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

29h 20m1 stop Casablanca Mohamed V

$676Royal Air Maroc

Sun, Nov 29 - Sat, Dec 12

9:05 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

15h 40m1 stop Casablanca Mohamed V

7:45 pm - 7:05 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

29h 20m1 stop Casablanca Mohamed V

$678Royal Air Maroc

Sun, Nov 29 - Sat, Dec 12

10:05 pm - 11:30 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

31h 25m1 stop Lisbon Humberto Delgado

12:25 pm - 8:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 10m1 stop Lisbon Humberto Delgado

$693TAP AIR PORTUGAL

Wed, Apr 7 - Wed, Apr 14

5:25 pm - 6:35 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

19h 10m1 stop Lisbon Humberto Delgado

12:10 pm - 8:30 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 20m1 stop Lisbon Humberto Delgado

$702TAP AIR PORTUGAL

Thu, Dec 3 - Wed, Dec 9

10:30 pm - 6:35 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

38h 05m1 stop Lisbon Humberto Delgado

12:10 pm - 8:30 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 20m1 stop Lisbon Humberto Delgado

$724TAP AIR PORTUGAL

Wed, Dec 9 - Wed, Dec 16

10:20 pm - 11:25 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

19h 05m1 stop Munich Franz Josef Strauss

6:50 am - 3:55 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

15h 05m1 stop Frankfurt am Main

$739Lufthansa

Thu, Apr 22 - Thu, Apr 29

10:20 pm - 11:25 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

19h 05m1 stop Munich Franz Josef Strauss

7:15 am - 3:55 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 40m2 stops Munich Franz Josef Strauss Frankfurt am Main

$760Lufthansa

Wed, Apr 7 - Wed, Apr 14

5:35 pm - 11:00 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

11h 25m1 stop Munich Franz Josef Strauss

6:45 am - 3:55 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

15h 10m1 stop Frankfurt am Main

$782United Airlines

Wed, Nov 25 - Fri, Dec 18

5:35 pm - 11:00 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

11h 25m1 stop Munich Franz Josef Strauss

6:45 am - 3:55 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

15h 10m1 stop Frankfurt am Main

$782United Airlines

Tue, Nov 24 - Fri, Dec 18

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Turkish Airlines flights from Washington, D.C. to Bilbao

Our best Turkish Airlines deals on Washington, D.C. to Bilbao flight tickets

Turkish Airlines

Apr 7

IAD1:15 pmWashington, D.C. Dulles Intl

22h 15m

1 stop

BIO5:30 pmBilbao

Apr 14

BIO6:25 pmBilbao

31h 25m

1 stop

IAD7:50 pmWashington, D.C. Dulles Intl

$738

Turkish Airlines

Apr 7

IAD1:15 pmWashington, D.C. Dulles Intl

22h 15m

1 stop

BIO5:30 pmBilbao

Apr 14

BIO6:25 pmBilbao

31h 25m

1 stop

IAD7:50 pmWashington, D.C. Dulles Intl

$743

Turkish Airlines

Nov 27

IAD1:30 pmWashington, D.C. Dulles Intl

15h 25m

1 stop

BIO10:55 amBilbao

Dec 4

BIO11:55 amBilbao

29h 50m

1 stop

IAD11:45 amWashington, D.C. Dulles Intl

$783

Lufthansa flights from Washington, D.C. to Bilbao

Our best Lufthansa deals on Washington, D.C. to Bilbao flight tickets

Lufthansa

Apr 22

IAD10:20 pmWashington, D.C. Dulles Intl

19h 05m

1 stop

BIO11:25 pmBilbao

Apr 29

BIO6:50 amBilbao

15h 05m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$739

Lufthansa

Nov 24

IAD10:55 pmWashington, D.C. Dulles Intl

17h 00m

1 stop

BIO9:55 pmBilbao

Dec 18

BIO6:45 amBilbao

15h 10m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$760

Lufthansa

Apr 22

IAD10:20 pmWashington, D.C. Dulles Intl

19h 05m

1 stop

BIO11:25 pmBilbao

Apr 29

BIO7:15 amBilbao

14h 40m

2 stops

IAD3:55 pmWashington, D.C. Dulles Intl

$769

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Wed 12/2

5:50 pm-11:15 pm

1 stop23h 25m

Bilbao

Wed 12/9

5:35 pm-4:20 pm

1 stop28h 45m

$667

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Sun 11/29

9:05 pm-6:45 pm

1 stop15h 40m

Bilbao

Sat 12/12

7:45 pm-7:05 pm

1 stop29h 20m

$676

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Sun 11/29

9:05 pm-6:45 pm

1 stop15h 40m

Bilbao

Sat 12/12

7:45 pm-7:05 pm

1 stop29h 20m

$678

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Wed 4/7

10:05 pm-11:30 am

1 stop31h 25m

Bilbao

Wed 4/14

12:25 pm-8:35 pm

1 stop14h 10m

$693

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Thu 12/3

5:25 pm-6:35 pm

1 stop19h 10m

Bilbao

Wed 12/9

12:10 pm-8:30 pm

1 stop14h 20m

$702

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Wed 12/9

10:30 pm-6:35 pm

1 stop38h 05m

Bilbao

Wed 12/16

12:10 pm-8:30 pm

1 stop14h 20m

$724

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Thu 4/22

10:20 pm-11:25 pm

1 stop19h 05m

Bilbao

Thu 4/29

6:50 am-3:55 pm

1 stop15h 05m

$739

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Wed 4/7

10:20 pm-11:25 pm

1 stop19h 05m

Bilbao

Wed 4/14

7:15 am-3:55 pm

2 stops14h 40m

$760

Quickest round-trip

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Wed 11/25

5:35 pm-11:00 am

1 stop11h 25m

Bilbao

Fri 12/18

6:45 am-3:55 pm

1 stop15h 10m

$782

Washington, D.C.Bilbao

IAD Washington, D.C. Dulles Intl - BIO Bilbao

IADBIO

Washington, D.C. Dulles Intl

Tue 11/24

5:35 pm-11:00 am

1 stop11h 25m

Bilbao

Fri 12/18

6:45 am-3:55 pm

1 stop15h 10m

$782

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

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Other information

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Washington, D.C. is in January. Flight prices, which tend to average around $393, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in January, then December is your next best option. Flight prices from Washington, D.C. to Bilbao during December average around $660.

Can stopping save me money on Washington, D.C. to Bilbao flights?

You could potentially save up to 47% on your flight if you consider stops on a Washington, D.C. to Bilbao flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Bilbao according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Bilbao (WAS to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Bilbao

Best Price Found	$323
Fastest flight time	10h 50m
Direct flights	None

The best one-way flight to Bilbao from Washington, D.C. in the past 72 hours is $323. The best round-trip flight deal from Washington, D.C. to Bilbao found on momondo in the last 72 hours is $667.

The fastest flight from Washington, D.C. to Bilbao takes 10h 50m

There are no direct flights from Washington, D.C. to Bilbao. There are no popular flight routes from Washington, D.C. to Bilbao.

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Bilbao

How far is Washington, D.C. to Bilbao by plane?
There are 3738.8 mi between Washington, D.C. and Bilbao. In terms of flight time, this usually takes a little over 10h 50m.
When did momondo last update prices for flights from Washington, D.C. to Bilbao Airport?
Prices for flights from Washington, D.C. to Bilbao Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Bilbao Airport?
There are 3 operators available for flights from Washington, D.C. to Bilbao Airport as of October 2026.
How old do you have to be to fly from Washington, D.C. to Bilbao Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. to Bilbao?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to Bilbao is United Airlines (31% of total bookings). The next most popular airlines are TAP AIR PORTUGAL (29%), Lufthansa (18%), and Delta (12%).

Best airlines flying from Washington, D.C. to Bilbao

Compare and see reviews for airlines that fly from Washington, D.C. to Bilbao with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $530	Free Cancellation	Rating 6.8 8,297 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $582	Free Cancellation	Rating 7.2 2,388 reviews	Search TAP AIR PORTUGAL flights
United Airlines	PriceFrom $660	Free Cancellation	Rating 7.3 10,454 reviews	Search United Airlines flights

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Why should I use momondo to find a flight deal from Washington, D.C. to Bilbao?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bilbao from Washington, D.C..

Can I find flights from Washington, D.C. to Bilbao with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Bilbao on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Bilbao?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bilbao from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Bilbao right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bilbao, momondo offers a useful price alert feature which will track prices for flights to Bilbao from Washington, D.C. and alert you when they change.

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Cheap flights from Washington, D.C. to Bilbao from $323

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Bilbao departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Turkish Airlines flights from Washington, D.C. to Bilbao

Our best Turkish Airlines deals on Washington, D.C. to Bilbao flight tickets

Lufthansa flights from Washington, D.C. to Bilbao

Our best Lufthansa deals on Washington, D.C. to Bilbao flight tickets

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How to get the cheapest flight ticket from Washington, D.C. to Bilbao

What is the cheapest month to fly to Bilbao?

Can stopping save me money on Washington, D.C. to Bilbao flights?

What is the cheapest airline that flies from Washington, D.C. to Bilbao?

What airlines fly to Bilbao?

Which airport is the most popular layover for flights between Washington, D.C. and Bilbao?

Which layover airport offers the lowest fares from Washington, D.C. to Bilbao?

Which layover airport has the shortest travel time from Washington, D.C. to Bilbao?

Which layover airport has the shortest connection time from Washington, D.C. to Bilbao?

How long does it take to fly to Bilbao?

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

Cheap Washington, D.C. to Bilbao (WAS to BIO) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Bilbao

Best airlines flying from Washington, D.C. to Bilbao

Compare and see reviews for airlines that fly from Washington, D.C. to Bilbao with momondo

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An easier way to manage your Bilbao trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

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Find better results for your trip to Spain

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