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.

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 13h 20m on average. Another popular route from Washington, D.C. to Bilbao is flying from Baltimore to Bilbao, which will take roughly 15h 54m. Keep in mind that layovers or delays could extend your travel time.

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 32% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 5 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

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

Lisbon (LIS) was the most common stop: 31% of momondo users choosing 1-stop flights on this route connected there.

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

Aer Lingus, TAP AIR PORTUGAL, and Iberia are the most popular carriers operating from Washington, D.C. to Bilbao

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 5 operators available for flights from Washington, D.C. to Bilbao Airport as of January 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.

$302 Cheap Flights from Washington, D.C. to Bilbao in 2026

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

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5:05 pm - 11:40 am

IAD

BIO

12h 35m

1 stop

6:50 pm - 3:05 pm

BIO

IAD

26h 15m

1 stop

$392TAP AIR PORTUGAL

Tue, Apr 28 - Tue, May 5

10:35 pm - 6:05 pm

IAD

BIO

13h 30m

1 stop

6:50 pm - 3:05 pm

BIO

IAD

26h 15m

1 stop

$393TAP AIR PORTUGAL

Sat, Apr 25 - Tue, May 5

5:30 pm - 5:55 pm

IAD

BIO

18h 25m

1 stop

7:20 pm - 3:35 pm

BIO

IAD

25h 15m

1 stop

$412TAP AIR PORTUGAL

Mon, Mar 2 - Mon, Mar 9

10:35 pm - 11:30 am

IAD

BIO

30h 55m

1 stop

12:25 pm - 8:35 pm

BIO

IAD

14h 10m

1 stop

$451TAP AIR PORTUGAL

Wed, Apr 29 - Wed, May 6

1:25 pm - 8:30 am

DCA

BIO

13h 05m

2 stops

9:15 am - 6:58 pm

BIO

DCA

15h 43m

2 stops

$606American Airlines

Wed, Apr 15 - Wed, Apr 29

5:00 pm - 1:00 pm

DCA

BIO

14h 00m

2 stops

9:15 am - 6:33 pm

BIO

DCA

15h 18m

2 stops

$673Iberia

Wed, Feb 18 - Wed, Feb 25

11:45 am - 11:30 am

BWI

BIO

17h 45m

2 stops

6:50 am - 7:19 pm

BIO

BWI

17h 29m

2 stops

$687Delta

Mon, Mar 2 - Mon, Mar 9

6:30 am - 10:50 am

BWI

BIO

22h 20m

3 stops

6:45 am - 9:42 pm

BIO

BWI

19h 57m

2 stops

$693United Airlines

Mon, Mar 2 - Mon, Mar 9

5:20 pm - 6:05 pm

BWI

BIO

18h 45m

2 stops

12:45 pm - 2:06 pm

BIO

BWI

30h 21m

2 stops

$695United Airlines

Sun, Mar 1 - Sun, Mar 8

1:01 pm - 11:30 am

BWI

BIO

16h 29m

2 stops

6:50 am - 4:38 pm

BIO

BWI

15h 48m

2 stops

$696Delta

Wed, Feb 18 - Wed, Feb 25

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

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

Turkish Airlines

May 6

IAD1:20 pmWashington, D.C. Dulles Intl

22h 00m

1 stop

BIO5:20 pmBilbao

May 13

BIO6:15 pmBilbao

23h 20m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$568

Turkish Airlines

Mar 11

IAD10:15 pmWashington, D.C. Dulles Intl

31h 45m

1 stop

BIO11:00 amBilbao

Mar 20

BIO12:00 pmBilbao

29h 45m

1 stop

IAD12:45 pmWashington, D.C. Dulles Intl

$588

Turkish Airlines

Mar 11

IAD2:30 pmWashington, D.C. Dulles Intl

20h 40m

1 stop

BIO4:10 pmBilbao

Mar 20

BIO12:00 pmBilbao

29h 45m

1 stop

IAD12:45 pmWashington, D.C. Dulles Intl

$589

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

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

United Airlines

Apr 15

IAD8:20 pmWashington, D.C. Dulles Intl

14h 55m

2 stops

BIO5:15 pmBilbao

Apr 29

BIO6:50 amBilbao

14h 49m

2 stops

IAD3:39 pmWashington, D.C. Dulles Intl

$616

United Airlines

Mar 2

BWI6:30 amBaltimore/Washington

22h 20m

3 stops

BIO10:50 amBilbao

Mar 9

BIO6:45 amBilbao

19h 57m

2 stops

BWI9:42 pmBaltimore/Washington

$693

United Airlines

Mar 1

BWI5:20 pmBaltimore/Washington

18h 45m

2 stops

BIO6:05 pmBilbao

Mar 8

BIO12:45 pmBilbao

30h 21m

2 stops

BWI2:06 pmBaltimore/Washington

$695

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Tue 4/28

5:05 pm-11:40 am

1 stop12h 35m

Bilbao

Tue 5/5

6:50 pm-3:05 pm

1 stop26h 15m

$392

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Sat 4/25

10:35 pm-6:05 pm

1 stop13h 30m

Bilbao

Tue 5/5

6:50 pm-3:05 pm

1 stop26h 15m

$393

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Mon 3/2

5:30 pm-5:55 pm

1 stop18h 25m

Bilbao

Mon 3/9

7:20 pm-3:35 pm

1 stop25h 15m

$412

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Wed 4/29

10:35 pm-11:30 am

1 stop30h 55m

Bilbao

Wed 5/6

12:25 pm-8:35 pm

1 stop14h 10m

$451

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Wed 4/15

1:25 pm-8:30 am

2 stops13h 05m

Bilbao

Wed 4/29

9:15 am-6:58 pm

2 stops15h 43m

$606

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Wed 2/18

5:00 pm-1:00 pm

2 stops14h 00m

Bilbao

Wed 2/25

9:15 am-6:33 pm

2 stops15h 18m

$673

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Mon 3/2

11:45 am-11:30 am

2 stops17h 45m

Bilbao

Mon 3/9

6:50 am-7:19 pm

2 stops17h 29m

$687

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Mon 3/2

6:30 am-10:50 am

3 stops22h 20m

Bilbao

Mon 3/9

6:45 am-9:42 pm

2 stops19h 57m

$693

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Sun 3/1

5:20 pm-6:05 pm

2 stops18h 45m

Bilbao

Sun 3/8

12:45 pm-2:06 pm

2 stops30h 21m

$695

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Wed 2/18

1:01 pm-11:30 am

2 stops16h 29m

Bilbao

Wed 2/25

6:50 am-4:38 pm

2 stops15h 48m

$696

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

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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 March. Flight prices, which tend to average around $560, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in March, then October is your next best option. Flight prices from Washington, D.C. to Bilbao during October average around $570.

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

You could potentially save up to 25% 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 45m
Direct flights	None

The fastest flight from Washington, D.C. to Bilbao takes 11h 45m

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 45m.
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 5 operators available for flights from Washington, D.C. to Bilbao Airport as of January 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 Lufthansa (19%), Iberia (15%), and TAP AIR PORTUGAL (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
TAP AIR PORTUGAL	PriceFrom $421	Free Cancellation	Rating 7.1 2,130 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $470	Free Cancellation	Rating 6.8 7,754 reviews	Search Lufthansa flights
KLM	PriceFrom $470	Free Cancellation	Rating 7.7 1,443 reviews	Search KLM flights
United Airlines	PriceFrom $505	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Iberia	PriceFrom $509	Free Cancellation	Rating 7.0 3,099 reviews	Search Iberia 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 $273

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 3/2. 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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Filter for what you want

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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

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Our best United Airlines 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?

You could potentially save up to 25% 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?

Aer Lingus, TAP AIR PORTUGAL, and Iberia 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: 31% 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