What airlines fly to Bilbao?

Lufthansa, United Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Bilbao from Washington, D.C. according to our data. Lufthansa is the first choice among our users, with 35% 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 offers the lowest fares from Washington, D.C. to Bilbao?

Flights via Lisbon (LIS) offer the lowest average round-trip price of $690.

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

Lisbon (LIS) was the most common stop: 44% 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 Lisbon (LIS) have the shortest average one-way travel time: 11h 45m.

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 14h 17m on average. Another popular route from Washington, D.C. to Bilbao is flying from Baltimore to Bilbao, which will take roughly 14h 37m. Keep in mind that layovers or delays could extend your travel time.

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

British Airways, Iberia, and Air Canada are the most popular carriers operating from Washington, D.C. to Bilbao

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

Munich (MUC) has the shortest average layover time for this route: 2h 18m.

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 August 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.

$319 Cheap Flights from Washington, D.C. to Bilbao in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:25 pm - 11:25 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

12h 00m1 stop Lisbon Humberto Delgado

12:15 pm - 8:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 20m1 stop Lisbon Humberto Delgado

$675TAP AIR PORTUGAL

Tue, Dec 1 - Thu, Apr 1

9:00 pm - 7:35 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

16h 35m1 stop Casablanca Mohamed V

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

29h 20m1 stop Casablanca Mohamed V

$690Royal Air Maroc

Fri, Oct 23 - Sat, Nov 7

5:25 pm - 11:25 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

12h 00m1 stop Lisbon Humberto Delgado

12:10 pm - 8:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 25m1 stop Lisbon Humberto Delgado

$692TAP AIR PORTUGAL

Tue, Jan 12 - Wed, Jan 27

9:00 pm - 7:35 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

16h 35m1 stop Casablanca Mohamed V

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

29h 20m1 stop Casablanca Mohamed V

$692Royal Air Maroc

Fri, Oct 23 - Sat, Nov 7

10:30 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

37h 25m1 stop Lisbon Humberto Delgado

12:10 pm - 8:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 25m1 stop Lisbon Humberto Delgado

$696TAP AIR PORTUGAL

Wed, Jan 13 - Wed, Jan 27

9:55 am - 5:45 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

25h 50m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

9:15 am - 4:20 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

13h 05m1 stop Madrid Barajas

$698Multiple Airlines

Wed, Jan 13 - Wed, Jan 27

10:55 pm - 11:10 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

18h 15m1 stop Munich Franz Josef Strauss

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

15h 05m1 stop Frankfurt am Main

$707Lufthansa

Mon, Nov 30 - Wed, Apr 14

10:55 pm - 5:45 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

12h 50m1 stop Munich Franz Josef Strauss

6:45 am - 8:05 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

19h 20m1 stop Frankfurt am Main

$728United Airlines

Sun, Dec 6 - Thu, Dec 10

10:55 pm - 5:45 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

12h 50m1 stop Munich Franz Josef Strauss

7:30 am - 8:05 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

18h 35m1 stop Munich Franz Josef Strauss

$730United Airlines

Sun, Dec 6 - Thu, Dec 10

10:55 pm - 9:55 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

17h 00m1 stop Munich Franz Josef Strauss

6:30 pm - 4:36 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

52h 06m2 stops Munich Franz Josef Strauss Boston Logan Intl

$766Lufthansa

Sun, Jan 10 - Thu, Jan 28

Cheap last minute flights

Enter your travel dates to find the best prices.

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

19h 05m1 stop Munich Franz Josef Strauss

6:40 pm - 7:25 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

30h 45m1 stop Munich Franz Josef Strauss

$1,003Lufthansa

Sat, Sep 5 - Mon, Sep 14

10:41 pm - 1:20 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

32h 39m2 stops Newark Frankfurt am Main

12:10 pm - 1:30 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

31h 20m1 stop Brussels Bruxelles-National

$1,019Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

10:15 pm - 10:20 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

30h 05m2 stops Boston Logan Intl Frankfurt am Main

12:10 pm - 1:30 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

31h 20m1 stop Brussels Bruxelles-National

$1,019Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

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

19h 05m1 stop Munich Franz Josef Strauss

6:40 pm - 1:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

24h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,024Lufthansa

Sat, Sep 5 - Mon, Sep 14

12:35 pm - 10:45 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

16h 10m1 stop Newark

6:50 am - 3:10 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 20m1 stop Frankfurt am Main

$1,032United Airlines

Sat, Sep 5 - Sun, Sep 13

5:55 pm - 10:45 amDCA Washington, D.C. Reagan-National-BIO Bilbao

10h 50m1 stop Newark

12:30 pm - 9:59 pmBIO Bilbao-DCA Washington, D.C. Reagan-National

15h 29m1 stop Newark

$1,038United Airlines

Sat, Sep 5 - Sun, Sep 13

5:30 pm - 11:15 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

11h 45m1 stop Amsterdam Schiphol

6:45 am - 3:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 50m1 stop Amsterdam Schiphol

$1,039Delta

Sat, Sep 5 - Sat, Sep 12

8:20 pm - 10:45 amDCA Washington, D.C. Reagan-National-BIO Bilbao

32h 25m1 stop Newark

12:30 pm - 7:39 pmBIO Bilbao-DCA Washington, D.C. Reagan-National

13h 09m1 stop Newark

$1,044United Airlines

Fri, Sep 4 - Sun, Sep 13

10:15 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-BIO Bilbao

18h 35m1 stop Frankfurt am Main

6:45 am - 3:10 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

14h 25m1 stop Frankfurt am Main

$1,051Lufthansa

Fri, Sep 4 - Fri, Sep 11

10:35 pm - 11:40 amIAD Washington, D.C. Dulles Intl-BIO Bilbao

31h 05m1 stop Lisbon Humberto Delgado

6:35 pm - 8:35 pmBIO Bilbao-IAD Washington, D.C. Dulles Intl

32h 00m1 stop Lisbon Humberto Delgado

$2,611TAP AIR PORTUGAL

Sat, Sep 5 - Sat, Sep 12

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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

TAP AIR PORTUGAL

Dec 1

IAD5:25 pmWashington, D.C. Dulles Intl

12h 00m

1 stop

BIO11:25 amBilbao

Apr 1

BIO12:15 pmBilbao

14h 20m

1 stop

IAD8:35 pmWashington, D.C. Dulles Intl

$675

TAP AIR PORTUGAL

Jan 13

IAD10:30 pmWashington, D.C. Dulles Intl

37h 25m

1 stop

BIO5:55 pmBilbao

Jan 27

BIO12:10 pmBilbao

14h 25m

1 stop

IAD8:35 pmWashington, D.C. Dulles Intl

$696

TAP AIR PORTUGAL

Jan 12

IAD5:25 pmWashington, D.C. Dulles Intl

12h 00m

1 stop

BIO11:25 amBilbao

Jan 26

BIO6:40 pmBilbao

31h 55m

1 stop

IAD8:35 pmWashington, D.C. Dulles Intl

$700

Lufthansa flights from Washington, D.C. to Bilbao

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

Lufthansa

Nov 30

IAD10:55 pmWashington, D.C. Dulles Intl

18h 15m

1 stop

BIO11:10 pmBilbao

Apr 14

BIO6:50 amBilbao

15h 05m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$707

Lufthansa

Jan 10

IAD10:55 pmWashington, D.C. Dulles Intl

17h 00m

1 stop

BIO9:55 pmBilbao

Jan 28

BIO6:30 pmBilbao

52h 06m

2 stops

IAD4:36 pmWashington, D.C. Dulles Intl

$766

Lufthansa

Jan 11

IAD6:00 pmWashington, D.C. Dulles Intl

17h 00m

1 stop

BIO5:00 pmBilbao

Jan 25

BIO12:25 pmBilbao

33h 30m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$773

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Tue 12/1

5:25 pm-11:25 am

1 stop12h 00m

Bilbao

Thu 4/1

12:15 pm-8:35 pm

1 stop14h 20m

$675

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Fri 10/23

9:00 pm-7:35 pm

1 stop16h 35m

Bilbao

Sat 11/7

7:45 pm-7:05 pm

1 stop29h 20m

$690

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Tue 1/12

5:25 pm-11:25 am

1 stop12h 00m

Bilbao

Wed 1/27

12:10 pm-8:35 pm

1 stop14h 25m

$692

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Fri 10/23

9:00 pm-7:35 pm

1 stop16h 35m

Bilbao

Sat 11/7

7:45 pm-7:05 pm

1 stop29h 20m

$692

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Wed 1/13

10:30 pm-5:55 pm

1 stop37h 25m

Bilbao

Wed 1/27

12:10 pm-8:35 pm

1 stop14h 25m

$696

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Wed 1/13

9:55 am-5:45 pm

2 stops25h 50m

Bilbao

Wed 1/27

9:15 am-4:20 pm

1 stop13h 05m

$698

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Mon 11/30

10:55 pm-11:10 pm

1 stop18h 15m

Bilbao

Wed 4/14

6:50 am-3:55 pm

1 stop15h 05m

$707

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Sun 12/6

10:55 pm-5:45 pm

1 stop12h 50m

Bilbao

Thu 12/10

6:45 am-8:05 pm

1 stop19h 20m

$728

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Sun 12/6

10:55 pm-5:45 pm

1 stop12h 50m

Bilbao

Thu 12/10

7:30 am-8:05 pm

1 stop18h 35m

$730

Washington, D.C.Bilbao

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

IADBIO

Washington, D.C. Dulles Intl

Sun 1/10

10:55 pm-9:55 pm

1 stop17h 00m

Bilbao

Thu 1/28

6:30 pm-4:36 pm

2 stops52h 06m

$766

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?

Prices are currently low for flights on this route.

Typical prices usually range from $906 to $1,139.
The lowest price recently found on this route was $675.

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 $533, 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 37% 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	$319
Fastest flight time	12h 50m
Direct flights	None

The best one-way flight to Bilbao from Washington, D.C. in the past 72 hours is $319. The best round-trip flight deal from Washington, D.C. to Bilbao found on momondo in the last 72 hours is $675.

The fastest flight from Washington, D.C. to Bilbao takes 12h 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 12h 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 August 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 TAP AIR PORTUGAL (35% of total bookings). The next most popular airlines are United Airlines (30%), Lufthansa (21%), and Delta (13%).

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 8,228 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $513	Free Cancellation	Rating 7.2 2,378 reviews	Search TAP AIR PORTUGAL flights
United Airlines	PriceFrom $571	Free Cancellation	Rating 7.4 10,147 reviews	Search United Airlines flights

Getxo

Laredo

Lekeitio

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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 $319

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 10/23. 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

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 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

Best Price Found

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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

Traveling to a place near Bilbao?

Why use momondo?

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.

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