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: 9h 55m.

What airlines fly to Bilbao?

Iberia, United Airlines and Lufthansa are the top three most popular airlines that fly to Bilbao from Washington, D.C. according to our data. Iberia is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 4 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

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

Scandinavian Airlines, TAP AIR PORTUGAL, and Delta are the most popular carriers operating from Washington, D.C. to Bilbao

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

Lisbon (LIS) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

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 36m on average. Another popular route from Washington, D.C. to Bilbao is flying from Baltimore to Bilbao, which will take roughly 13h 53m. Keep in mind that layovers or delays could extend your travel time.

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

Zurich (ZRH) has the shortest average layover time for this route: 1h 03m.

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $545.

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 4 operators available for flights from Washington, D.C. to Bilbao Airport as of December 2025.

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.

$225 Cheap Flights from Washington, D.C. to Bilbao in 2025/26

Q: What is the typical price of a round-trip flight between Washington, D.C. and Bilbao?

Prices are currently low for flights on this route. Typical prices usually range from $739 to $1,663. The lowest price recently found on this route was $410.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 pm - 11:25 amIAD-BIO

11h 55m1 stop

12:10 pm - 9:00 pmBIO-IAD

14h 50m1 stop

$410TAP AIR PORTUGAL

Find Deal

Tue, Feb 17 - Wed, Feb 25

10:15 pm - 9:55 pmIAD-BIO

17h 40m2 stops

7:40 am - 3:35 pmBIO-IAD

13h 55m1 stop

$444Lufthansa

Find Deal

Thu, Jan 15 - Thu, Jan 22

6:20 pm - 8:30 amIAD-BIO

32h 10m2 stops

9:35 pm - 4:30 pmBIO-IAD

24h 55m1 stop

$447Iberia

Find Deal

Tue, Feb 17 - Wed, Feb 25

1:44 pm - 8:30 amDCA-BIO

12h 46m2 stops

9:15 am - 6:56 pmBIO-DCA

15h 41m2 stops

$447American Airlines

Find Deal

Mon, Jan 19 - Wed, Feb 4

5:45 pm - 12:05 pmIAD-BIO

36h 20m2 stops

9:25 am - 8:15 pmBIO-IAD

16h 50m1 stop

$451SWISS

Find Deal

Mon, Jan 19 - Wed, Feb 4

5:30 pm - 12:50 pmDCA-BIO

13h 20m2 stops

9:15 am - 11:00 pmBIO-DCA

18h 45m2 stops

$455Iberia

Find Deal

Mon, Mar 2 - Wed, Mar 11

5:40 pm - 10:50 amIAD-BIO

11h 10m1 stop

11:35 am - 7:55 pmBIO-IAD

14h 20m1 stop

$456United Airlines

Find Deal

Mon, Jan 19 - Wed, Feb 4

3:37 pm - 11:30 amBWI-BIO

13h 53m2 stops

12:15 pm - 12:46 amBIO-BWI

17h 31m2 stops

$471Delta

Find Deal

Mon, Mar 2 - Wed, Mar 11

1:02 pm - 9:55 pmIAD-BIO

26h 53m2 stops

7:25 am - 5:25 pmBIO-IAD

40h 00m2 stops

$475United Airlines

Find Deal

Tue, Feb 17 - Wed, Feb 25

1:00 pm - 8:30 amBWI-BIO

13h 30m2 stops

9:15 am - 9:58 pmBIO-BWI

17h 43m2 stops

$530American Airlines

Find Deal

Wed, Feb 25 - Sun, Mar 8

Delta flights from Washington, D.C. to Bilbao

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

Delta

Mar 2

BWI3:37 pmBaltimore/Washington

13h 53m

2 stops

BIO11:30 amBilbao

Mar 11

BIO12:15 pmBilbao

17h 31m

2 stops

BWI12:46 amBaltimore/Washington

$471

Find similar

Delta

Jan 21

DCA12:20 pmWashington, D.C. Reagan-National

23h 00m

2 stops

BIO5:20 pmBilbao

Jan 25

BIO7:25 amBilbao

15h 04m

2 stops

DCA4:29 pmWashington, D.C. Reagan-National

$521

Find similar

Delta

Jan 17

BWI6:03 pmBaltimore/Washington

16h 27m

2 stops

BIO4:30 pmBilbao

Jan 24

BIO6:50 amBilbao

19h 22m

2 stops

BWI8:12 pmBaltimore/Washington

$663

Find similar

Iberia flights from Washington, D.C. to Bilbao

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

Iberia

Feb 17

IAD6:20 pmWashington, D.C. Dulles Intl

32h 10m

2 stops

BIO8:30 amBilbao

Feb 25

BIO9:35 pmBilbao

24h 55m

1 stop

IAD4:30 pmWashington, D.C. Dulles Intl

$447

Find similar

Iberia

Mar 2

DCA5:30 pmWashington, D.C. Reagan-National

13h 20m

2 stops

BIO12:50 pmBilbao

Mar 11

BIO9:15 amBilbao

18h 45m

2 stops

DCA11:00 pmWashington, D.C. Reagan-National

$455

Find similar

Iberia

May 4

IAD5:00 pmWashington, D.C. Dulles Intl

13h 45m

1 stop

BIO12:45 pmBilbao

May 21

BIO6:30 pmBilbao

27h 00m

1 stop

IAD3:30 pmWashington, D.C. Dulles Intl

$511

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Tue 2/17

5:30 pm-11:25 am

1 stop11h 55m

Bilbao

Wed 2/25

12:10 pm-9:00 pm

1 stop14h 50m

$410

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Thu 1/15

10:15 pm-9:55 pm

2 stops17h 40m

Bilbao

Thu 1/22

7:40 am-3:35 pm

1 stop13h 55m

$444

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Tue 2/17

6:20 pm-8:30 am

2 stops32h 10m

Bilbao

Wed 2/25

9:35 pm-4:30 pm

1 stop24h 55m

$447

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Mon 1/19

1:44 pm-8:30 am

2 stops12h 46m

Bilbao

Wed 2/4

9:15 am-6:56 pm

2 stops15h 41m

$447

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Mon 1/19

5:45 pm-12:05 pm

2 stops36h 20m

Bilbao

Wed 2/4

9:25 am-8:15 pm

1 stop16h 50m

$451

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Mon 3/2

5:30 pm-12:50 pm

2 stops13h 20m

Bilbao

Wed 3/11

9:15 am-11:00 pm

2 stops18h 45m

$455

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Mon 1/19

5:40 pm-10:50 am

1 stop11h 10m

Bilbao

Wed 2/4

11:35 am-7:55 pm

1 stop14h 20m

$456

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Mon 3/2

3:37 pm-11:30 am

2 stops13h 53m

Bilbao

Wed 3/11

12:15 pm-12:46 am

2 stops17h 31m

$471

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Tue 2/17

1:02 pm-9:55 pm

2 stops26h 53m

Bilbao

Wed 2/25

7:25 am-5:25 pm

2 stops40h 00m

$475

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Wed 2/25

1:00 pm-8:30 am

2 stops13h 30m

Bilbao

Sun 3/8

9:15 am-9:58 pm

2 stops17h 43m

$530

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

Layovers

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Bilbao?

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Washington, D.C. is in February. Flight prices, which tend to average around $547, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in February, then October is your next best option. Flight prices from Washington, D.C. to Bilbao during October average around $570.

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Washington, D.C. to Bilbao is on a Monday. Travelers who choose to depart for Bilbao on a Monday will often find tickets for as low as $602. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,050. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the evening. Flights from Washington, D.C. to Bilbao during this time can be as low as $764. At noon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $890 per ticket.

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

You could potentially save up to 26% 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

Fastest flight time	11h 55m
Direct flights	None

The fastest flight from Washington, D.C. to Bilbao takes 11h 55m

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

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 11h 10m.
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 4 operators available for flights from Washington, D.C. to Bilbao Airport as of December 2025.
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 (33% of total bookings). The next most popular airlines are Lufthansa (18%), Iberia (17%), and Delta (11%).

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 $492	Free Cancellation	Rating 6.8 7,603 reviews	Search Lufthansa flights
KLM	PriceFrom $503	Free Cancellation	Rating 7.7 1,426 reviews	Search KLM flights
Iberia	PriceFrom $509	Free Cancellation	Rating 7.0 3,038 reviews	Search Iberia flights
United Airlines	PriceFrom $514	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights

Getxo

Laredo

Lekeitio

Why use momondo?

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Fri 1/2

Fri 1/9

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Cheap flights from Washington, D.C. to Bilbao from $225

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 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Delta flights from Washington, D.C. to Bilbao

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

Iberia flights from Washington, D.C. to Bilbao

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Bilbao that are best for you.

See travel insights to Bilbao from

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

What is the typical price of a round-trip flight between Washington, D.C. and Bilbao?

What is the cheapest month to fly to Bilbao?

What is the cheapest day to depart on your flight to Bilbao?

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the evening. Flights from Washington, D.C. to Bilbao during this time can be as low as $764. At noon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $890 per ticket.

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

You could potentially save up to 26% on your flight if you consider stops on a Washington, D.C. to Bilbao flight.

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

Scandinavian Airlines, TAP AIR PORTUGAL, and Delta are the most popular carriers operating 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?

Lisbon (LIS) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $545.

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: 9h 55m.

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

Zurich (ZRH) has the shortest average layover time for this route: 1h 03m.

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

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

Fastest flight time

Direct flights

How far is Washington, D.C. to Bilbao by plane?

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

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

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

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

What is the most popular airline 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

Traveling to a place near Bilbao?

Why use momondo?

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

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

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

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

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

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Spain

Airports servicing Basque Country