What is the cheapest airline that flies from Washington to Bilbao?

Lufthansa, KLM, and United Airlines are the most popular carriers operating from Washington to Bilbao

What airlines fly to Bilbao?

Lufthansa, Delta and KLM are the top three most popular airlines that fly to Bilbao from State of Washington according to our data. Lufthansa is the first choice among our users, with 52% 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.

How long does it take to fly to Bilbao?

Flight times from State of Washington to Bilbao vary, but if you’re flying out of Seattle and flying into Bilbao (one of the most popular routes), then the duration is 18h 20m on average. Another popular route from State of Washington to Bilbao is flying from Pasco to Bilbao, which will take roughly 27h 40m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Washington to Bilbao Airport?

Prices for flights from Washington to Bilbao Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Bilbao Airport?

As of May 2026, there are 4 operators available to choose from for flights from Washington to Bilbao Airport.

How old do you have to be to fly from Washington to Bilbao Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Bilbao Airport.

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

The necessary travel and health documents for your Bilbao Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$340 Cheap Flights from Washington to Bilbao in 2026

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Find the cheapest flights from Washington to Bilbao

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:55 pm - 6:45 pm

SEA

BIO

17h 50m

1 stop

7:35 pm - 1:45 pm

BIO

SEA

27h 10m

1 stop

$661Scandinavian Airlines

Tue, Sep 22 - Fri, Oct 2

2:10 pm - 5:15 pm

SEA

BIO

18h 05m

1 stop

6:45 am - 10:42 pm

BIO

SEA

24h 57m

2 stops

$711Multiple Airlines

Wed, Oct 14 - Fri, Oct 23

6:45 pm - 5:30 pm

SEA

BIO

13h 45m

1 stop

6:45 am - 11:47 am

BIO

SEA

14h 02m

1 stop

$727Delta

Sun, Sep 20 - Tue, Sep 29

6:50 pm - 11:25 pm

SEA

BIO

19h 35m

1 stop

6:45 am - 12:20 pm

BIO

SEA

14h 35m

1 stop

$728Lufthansa

Wed, Oct 14 - Fri, Oct 23

6:50 pm - 11:25 pm

SEA

BIO

19h 35m

1 stop

6:50 am - 6:32 pm

BIO

SEA

20h 42m

2 stops

$729United Airlines

Sun, Sep 20 - Wed, Sep 30

11:10 pm - 10:45 am

SEA

BIO

26h 35m

2 stops

6:50 am - 11:55 am

BIO

SEA

14h 05m

1 stop

$730United Airlines

Mon, Sep 21 - Wed, Sep 30

3:55 pm - 11:35 am

SEA

BIO

34h 40m

1 stop

7:35 pm - 1:45 pm

BIO

SEA

27h 10m

1 stop

$731Scandinavian Airlines

Sat, Sep 19 - Fri, Oct 2

3:30 pm - 11:25 pm

SEA

BIO

22h 55m

2 stops

6:45 am - 10:42 pm

BIO

SEA

24h 57m

2 stops

$733United Airlines

Wed, Oct 14 - Fri, Oct 23

11:00 pm - 4:00 pm

SEA

BIO

32h 00m

2 stops

6:45 am - 9:52 am

BIO

SEA

36h 07m

2 stops

$734United Airlines

Sun, Sep 20 - Fri, Oct 2

6:50 pm - 11:25 pm

SEA

BIO

19h 35m

1 stop

6:50 am - 9:56 pm

BIO

SEA

24h 06m

3 stops

$739United Airlines

Sun, Sep 20 - Tue, Sep 29

Lufthansa flights from State of Washington to Bilbao

Our best Lufthansa deals on State of Washington to Bilbao flight tickets

Lufthansa

Oct 14

SEA6:50 pmSeattle/Tacoma Intl

19h 35m

1 stop

BIO11:25 pmBilbao

Oct 23

BIO6:45 amBilbao

14h 35m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

$728

Lufthansa

Sep 16

SEA6:50 pmSeattle/Tacoma Intl

19h 35m

1 stop

BIO11:25 pmBilbao

Sep 30

BIO6:50 amBilbao

14h 05m

1 stop

SEA11:55 amSeattle/Tacoma Intl

$758

Lufthansa

Sep 1

SEA1:57 pmSeattle/Tacoma Intl

24h 08m

2 stops

BIO11:05 pmBilbao

Sep 8

BIO11:55 amBilbao

14h 04m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$768

Delta flights from State of Washington to Bilbao

Our best Delta deals on State of Washington to Bilbao flight tickets

Delta

Sep 20

SEA6:45 pmSeattle/Tacoma Intl

13h 45m

1 stop

BIO5:30 pmBilbao

Sep 29

BIO6:45 amBilbao

14h 02m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$727

Delta

Sep 21

SEA7:20 amSeattle/Tacoma Intl

18h 55m

2 stops

BIO11:15 amBilbao

Sep 29

BIO6:45 amBilbao

19h 10m

2 stops

SEA4:55 pmSeattle/Tacoma Intl

$747

Delta

Sep 22

SEA6:45 pmSeattle/Tacoma Intl

13h 45m

1 stop

BIO5:30 pmBilbao

Sep 28

BIO10:30 amBilbao

33h 45m

1 stop

SEA11:15 amSeattle/Tacoma Intl

$748

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Tue 9/22

3:55 pm-6:45 pm

1 stop17h 50m

Bilbao

Fri 10/2

7:35 pm-1:45 pm

1 stop27h 10m

$661

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/14

2:10 pm-5:15 pm

1 stop18h 05m

Bilbao

Fri 10/23

6:45 am-10:42 pm

2 stops24h 57m

$711

Quickest round-trip

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 9/20

6:45 pm-5:30 pm

1 stop13h 45m

Bilbao

Tue 9/29

6:45 am-11:47 am

1 stop14h 02m

$727

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/14

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Fri 10/23

6:45 am-12:20 pm

1 stop14h 35m

$728

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 9/20

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Wed 9/30

6:50 am-6:32 pm

2 stops20h 42m

$729

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Mon 9/21

11:10 pm-10:45 am

2 stops26h 35m

Bilbao

Wed 9/30

6:50 am-11:55 am

1 stop14h 05m

$730

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-11:35 am

1 stop34h 40m

Bilbao

Fri 10/2

7:35 pm-1:45 pm

1 stop27h 10m

$731

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/14

3:30 pm-11:25 pm

2 stops22h 55m

Bilbao

Fri 10/23

6:45 am-10:42 pm

2 stops24h 57m

$733

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 9/20

11:00 pm-4:00 pm

2 stops32h 00m

Bilbao

Fri 10/2

6:45 am-9:52 am

2 stops36h 07m

$734

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 9/20

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Tue 9/29

6:50 am-9:56 pm

3 stops24h 06m

$739

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 State of Washington 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

Other information

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from State of Washington is in February. Flight prices, which tend to average around $0, 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 State of Washington to Bilbao during October average around $479.

Cheap State of Washington to Bilbao flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Bilbao

Fastest flight time	18h 10m
Direct flights	None

The fastest flight from State of Washington to Bilbao takes 18h 10m

There are no direct flights from State of Washington to Bilbao. There are no popular flight routes from State of Washington to Bilbao.

Search flight deals

Frequently asked questions about flying from Washington to Bilbao

When did momondo last update prices for flights from Washington to Bilbao Airport?
Prices for flights from Washington to Bilbao Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Bilbao Airport?
As of May 2026, there are 4 operators available to choose from for flights from Washington to Bilbao Airport.
How old do you have to be to fly from Washington to Bilbao Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The necessary travel and health documents for your Bilbao Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Bilbao

Compare and see reviews for airlines that fly from State of Washington to Bilbao with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $484	Free Cancellation	Rating 7.4 9,700 reviews	Search United Airlines flights
Lufthansa	PriceFrom $514	Free Cancellation	Rating 6.8 7,992 reviews	Search Lufthansa flights
KLM	PriceFrom $586	Free Cancellation	Rating 7.8 1,514 reviews	Search KLM flights
Delta	PriceFrom $731	Free Cancellation	Rating 7.9 8,452 reviews	Search Delta flights

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Laredo

Lekeitio

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Why should I use momondo to find a flight deal from Washington to Bilbao?

It is quick and easy to find Washington to Bilbao flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bilbao that suits you.

Can I find flights from Washington to Bilbao with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Bilbao from Washington with this policy.

How can momondo help me find flights from Washington to Bilbao?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Bilbao.

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

Yes momondo offers price alerts on flights to Bilbao from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Washington to Bilbao from $340

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 to Bilbao departing on 9/27. 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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What airlines fly to Bilbao?

How long does it take to fly to Bilbao?

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