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?

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 45m on average. Another popular route from Washington, D.C. to Bilbao is flying from Baltimore to Bilbao, which will take roughly 14h 50m. Keep in mind that layovers or delays could extend your travel time.

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 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.

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

American Airlines, Aer Lingus, and British Airways are the most popular carriers operating from Washington, D.C. to Bilbao

What airlines fly to Bilbao?

United Airlines, Iberia and Lufthansa 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 32% 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.

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 March 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.

$298 Cheap Flights from Washington, D.C. to Bilbao in 2026

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

Prices are currently typical for flights on this route. Typical prices usually range from $536 to $782. The lowest price recently found on this route was $559.

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

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One-way

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Enter your travel dates to find the best prices.

10:35 pm - 6:00 pm

IAD

BIO

13h 25m

1 stop

12:25 pm - 3:10 pm

BIO

IAD

32h 45m

1 stop

$559TAP AIR PORTUGAL

Mon, Apr 27 - Mon, May 4

5:05 pm - 11:40 am

IAD

BIO

12h 35m

1 stop

7:20 pm - 2:35 pm

BIO

IAD

25h 15m

1 stop

$561TAP AIR PORTUGAL

Tue, Aug 11 - Mon, Nov 9

10:35 pm - 6:00 pm

IAD

BIO

13h 25m

1 stop

12:25 pm - 3:10 pm

BIO

IAD

32h 45m

1 stop

$569TAP AIR PORTUGAL

Mon, Apr 27 - Mon, May 4

1:45 pm - 9:50 am

DCA

BIO

14h 05m

2 stops

11:55 am - 11:04 pm

BIO

DCA

17h 09m

2 stops

$705Delta

Tue, Aug 11 - Tue, Nov 10

1:00 pm - 9:50 am

BWI

BIO

14h 50m

2 stops

7:25 am - 6:46 pm

BIO

BWI

17h 21m

2 stops

$712Delta

Tue, Aug 11 - Tue, Nov 10

1:25 pm - 8:30 am

DCA

BIO

13h 05m

2 stops

9:15 am - 6:58 pm

BIO

DCA

15h 43m

2 stops

$728American Airlines

Tue, Apr 28 - Tue, May 5

12:21 pm - 12:45 pm

BWI

BIO

18h 24m

2 stops

6:45 am - 7:34 pm

BIO

BWI

18h 49m

2 stops

$730American Airlines

Wed, Apr 29 - Wed, May 6

3:42 pm - 5:55 pm

BWI

BIO

20h 13m

2 stops

6:50 am - 9:23 pm

BIO

BWI

20h 33m

2 stops

$756United Airlines

Sun, Apr 12 - Tue, Apr 28

10:44 am - 4:00 pm

BWI

BIO

23h 16m

2 stops

6:45 am - 8:57 pm

BIO

BWI

20h 12m

2 stops

$758United Airlines

Mon, Aug 10 - Mon, Nov 9

1:25 pm - 8:30 am

DCA

BIO

13h 05m

2 stops

1:30 pm - 10:29 pm

BIO

DCA

14h 59m

2 stops

$761Iberia

Mon, Apr 27 - Mon, May 4

TAP AIR PORTUGAL flights from Washington, D.C. to Bilbao

Our best TAP AIR PORTUGAL deals on Washington, D.C. to Bilbao flight tickets

TAP AIR PORTUGAL

Apr 27

IAD10:35 pmWashington, D.C. Dulles Intl

13h 25m

1 stop

BIO6:00 pmBilbao

May 4

BIO12:25 pmBilbao

32h 45m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$559

TAP AIR PORTUGAL

Aug 11

IAD5:05 pmWashington, D.C. Dulles Intl

12h 35m

1 stop

BIO11:40 amBilbao

Nov 9

BIO7:20 pmBilbao

25h 15m

1 stop

IAD2:35 pmWashington, D.C. Dulles Intl

$561

TAP AIR PORTUGAL

Apr 27

IAD10:35 pmWashington, D.C. Dulles Intl

13h 25m

1 stop

BIO6:00 pmBilbao

May 4

BIO12:25 pmBilbao

32h 45m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$569

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

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

American Airlines

Apr 28

DCA1:25 pmWashington, D.C. Reagan-National

13h 05m

2 stops

BIO8:30 amBilbao

May 5

BIO9:15 amBilbao

15h 43m

2 stops

DCA6:58 pmWashington, D.C. Reagan-National

$728

American Airlines

Apr 29

BWI12:21 pmBaltimore/Washington

18h 24m

2 stops

BIO12:45 pmBilbao

May 6

BIO6:45 amBilbao

18h 49m

2 stops

BWI7:34 pmBaltimore/Washington

$730

American Airlines

May 4

DCA5:59 pmWashington, D.C. Reagan-National

12h 46m

2 stops

BIO12:45 pmBilbao

May 21

BIO1:30 pmBilbao

15h 43m

2 stops

DCA11:13 pmWashington, D.C. Reagan-National

$741

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Mon 4/27

10:35 pm-6:00 pm

1 stop13h 25m

Bilbao

Mon 5/4

12:25 pm-3:10 pm

1 stop32h 45m

$559

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Tue 8/11

5:05 pm-11:40 am

1 stop12h 35m

Bilbao

Mon 11/9

7:20 pm-2:35 pm

1 stop25h 15m

$561

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Mon 4/27

10:35 pm-6:00 pm

1 stop13h 25m

Bilbao

Mon 5/4

12:25 pm-3:10 pm

1 stop32h 45m

$569

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Tue 8/11

1:45 pm-9:50 am

2 stops14h 05m

Bilbao

Tue 11/10

11:55 am-11:04 pm

2 stops17h 09m

$705

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Tue 8/11

1:00 pm-9:50 am

2 stops14h 50m

Bilbao

Tue 11/10

7:25 am-6:46 pm

2 stops17h 21m

$712

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Tue 4/28

1:25 pm-8:30 am

2 stops13h 05m

Bilbao

Tue 5/5

9:15 am-6:58 pm

2 stops15h 43m

$728

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Wed 4/29

12:21 pm-12:45 pm

2 stops18h 24m

Bilbao

Wed 5/6

6:45 am-7:34 pm

2 stops18h 49m

$730

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Sun 4/12

3:42 pm-5:55 pm

2 stops20h 13m

Bilbao

Tue 4/28

6:50 am-9:23 pm

2 stops20h 33m

$756

BaltimoreBilbao

BWI - BIO

BWIBIO

Baltimore/Washington

Mon 8/10

10:44 am-4:00 pm

2 stops23h 16m

Bilbao

Mon 11/9

6:45 am-8:57 pm

2 stops20h 12m

$758

Quickest round-trip

Washington, D.C.Bilbao

DCA - BIO

DCABIO

Washington, D.C. Reagan-National

Mon 4/27

1:25 pm-8:30 am

2 stops13h 05m

Bilbao

Mon 5/4

1:30 pm-10:29 pm

2 stops14h 59m

$761

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 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 January. Flight prices, which tend to average around $539, 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 October is your next best option. Flight prices from Washington, D.C. to Bilbao during October average around $565.

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

You could potentially save up to 36% 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	12h 45m
Direct flights	None

The fastest flight from Washington, D.C. to Bilbao takes 12h 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 12h 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 4 operators available for flights from Washington, D.C. to Bilbao Airport as of March 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 (30% of total bookings). The next most popular airlines are Lufthansa (19%), TAP AIR PORTUGAL (18%), and Delta (14%).

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 2,166 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $470	Free Cancellation	Rating 6.8 7,854 reviews	Search Lufthansa flights
Iberia	PriceFrom $509	Free Cancellation	Rating 7.0 3,136 reviews	Search Iberia flights
United Airlines	PriceFrom $514	Free Cancellation	Rating 7.4 9,428 reviews	Search United Airlines flights

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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.

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Cheap flights from Washington, D.C. to Bilbao from $298

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 8/16. 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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TAP AIR PORTUGAL flights from Washington, D.C. to Bilbao

Our best TAP AIR PORTUGAL 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 typical price of a round-trip flight between Washington, D.C. and 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

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

Fastest flight time

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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

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