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

Air Canada, United Airlines, and Delta are the most popular carriers operating from Washington to Bilbao

What airlines fly to Bilbao?

Delta, KLM and Lufthansa are the top three most popular airlines that fly to Bilbao from State of Washington according to our data. Delta is the first choice among our users, with 31% 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.

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 40m on average. Another popular route from State of Washington to Bilbao is flying from Pasco to Bilbao, which will take roughly 23h. 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 August 2025, there are 5 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.

$486 Cheap Flights from Washington to Bilbao in 2025

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Find the cheapest flights from Washington to Bilbao

Round-trip

One-way

Last minute

Cheap round-trip flights

6:15 am - 3:55 pmPDX-BIO

24h 40m3 stops

9:05 pm - 11:01 pmBIO-PDX

34h 56m3 stops

$515

Find Deal

Wed, Oct 15 - Wed, Oct 22

6:15 am - 8:10 pmPDX-BIO

28h 55m2 stops

6:45 am - 6:46 pmBIO-PDX

21h 01m2 stops

$588

Find Deal

Wed, Oct 15 - Wed, Oct 22

10:45 pm - 10:45 amPDX-BIO

27h 00m1 stop

12:30 pm - 9:37 pmBIO-PDX

18h 07m1 stop

$603United Airlines

Find Deal

Mon, Sep 15 - Wed, Sep 24

8:20 am - 10:50 amPDX-BIO

17h 30m2 stops

12:45 pm - 12:13 pmBIO-PDX

32h 28m3 stops

$605United Airlines

Find Deal

Mon, Nov 3 - Wed, Nov 12

6:10 am - 12:45 pmSEA-BIO

21h 35m2 stops

1:30 pm - 9:46 pmBIO-SEA

41h 16m2 stops

$648Iberia

Find Deal

Tue, Oct 7 - Wed, Oct 15

3:00 pm - 8:30 amSEA-BIO

32h 30m2 stops

1:30 pm - 12:27 amBIO-SEA

19h 57m2 stops

$650Iberia

Find Deal

Wed, Oct 1 - Wed, Oct 15

7:40 pm - 5:50 pmPDX-BIO

37h 10m2 stops

6:45 am - 6:46 pmBIO-PDX

21h 01m2 stops

$670Air Canada

Find Deal

Sun, Sep 7 - Thu, Oct 16

3:25 pm - 6:25 pmPDX-BIO

42h 00m2 stops

6:45 am - 6:46 pmBIO-PDX

21h 01m2 stops

$674Air Canada

Find Deal

Sat, Sep 6 - Tue, Oct 14

2:20 pm - 1:25 pmSEA-BIO

14h 05m1 stop

6:45 am - 11:55 amBIO-SEA

14h 10m1 stop

$689Lufthansa

Find Deal

Wed, Oct 1 - Fri, Oct 10

6:50 pm - 11:25 pmSEA-BIO

19h 35m1 stop

6:45 am - 11:55 amBIO-SEA

14h 10m1 stop

$690Lufthansa

Find Deal

Wed, Oct 1 - Wed, Oct 15

United Airlines flights from State of Washington to Bilbao

Our best United Airlines deals on State of Washington to Bilbao flight tickets

United Airlines

Sep 15

PDX10:45 pmPortland

27h 00m

1 stop

BIO10:45 amBilbao

Sep 24

BIO12:30 pmBilbao

18h 07m

1 stop

PDX9:37 pmPortland

$603

Find similar

United Airlines

Nov 3

PDX8:20 amPortland

17h 30m

2 stops

BIO10:50 amBilbao

Nov 12

BIO12:45 pmBilbao

32h 28m

3 stops

PDX12:13 pmPortland

$605

Find similar

United Airlines

Sep 15

PDX2:15 pmPortland

19h 30m

2 stops

BIO6:45 pmBilbao

Sep 24

BIO12:30 pmBilbao

29h 23m

1 stop

PDX8:53 amPortland

$624

Find similar

Lufthansa flights from State of Washington to Bilbao

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

Lufthansa

Oct 1

SEA2:20 pmSeattle/Tacoma Intl

14h 05m

1 stop

BIO1:25 pmBilbao

Oct 10

BIO6:45 amBilbao

14h 10m

1 stop

SEA11:55 amSeattle/Tacoma Intl

$689

Find similar

Lufthansa

Oct 1

SEA6:50 pmSeattle/Tacoma Intl

19h 35m

1 stop

BIO11:25 pmBilbao

Oct 15

BIO6:45 amBilbao

14h 10m

1 stop

SEA11:55 amSeattle/Tacoma Intl

$690

Find similar

Lufthansa

Sep 7

PDX10:55 amPortland

27h 30m

2 stops

BIO11:25 pmBilbao

Oct 13

BIO7:10 pmBilbao

36h 51m

2 stops

PDX11:01 pmPortland

$694

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 10/15

6:15 am-3:55 pm

3 stops24h 40m

Bilbao

Wed 10/22

9:05 pm-11:01 pm

3 stops34h 56m

$515

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 10/15

6:15 am-8:10 pm

2 stops28h 55m

Bilbao

Wed 10/22

6:45 am-6:46 pm

2 stops21h 01m

$588

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Mon 9/15

10:45 pm-10:45 am

1 stop27h 00m

Bilbao

Wed 9/24

12:30 pm-9:37 pm

1 stop18h 07m

$603

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Mon 11/3

8:20 am-10:50 am

2 stops17h 30m

Bilbao

Wed 11/12

12:45 pm-12:13 pm

3 stops32h 28m

$605

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Tue 10/7

6:10 am-12:45 pm

2 stops21h 35m

Bilbao

Wed 10/15

1:30 pm-9:46 pm

2 stops41h 16m

$648

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/1

3:00 pm-8:30 am

2 stops32h 30m

Bilbao

Wed 10/15

1:30 pm-12:27 am

2 stops19h 57m

$650

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sun 9/7

7:40 pm-5:50 pm

2 stops37h 10m

Bilbao

Thu 10/16

6:45 am-6:46 pm

2 stops21h 01m

$670

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 9/6

3:25 pm-6:25 pm

2 stops42h 00m

Bilbao

Tue 10/14

6:45 am-6:46 pm

2 stops21h 01m

$674

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/1

2:20 pm-1:25 pm

1 stop14h 05m

Bilbao

Fri 10/10

6:45 am-11:55 am

1 stop14h 10m

$689

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/1

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Wed 10/15

6:45 am-11:55 am

1 stop14h 10m

$690

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 $788, 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 $789.

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

The cheapest day to depart from State of Washington to Bilbao is on a Monday. Travelers who choose to depart for Bilbao on a Monday will often find tickets for as low as $872. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,448. 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 morning. Flights from State of Washington to Bilbao during this time can be as low as $715. At noon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,245 per ticket.

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

Best Price Found	$486
Fastest flight time	12h 55m
Direct flights	None
Airports in Bilbao	1 airport

The best one-way flight to Bilbao from State of Washington in the past 72 hours is $486. The best round-trip flight deal from State of Washington to Bilbao found on momondo in the last 72 hours is $515.

The fastest flight from State of Washington to Bilbao takes 12h 55m

There are no direct flights from State of Washington to Bilbao. Popular non-direct routes for this connection are Pasco Tri Cities Airport - Bilbao Airport, Seattle/Tacoma Intl Airport - Bilbao Airport and Portland Airport - Bilbao Airport.

There is 1 airport near Bilbao: Bilbao (BIO)

Search flight deals

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 August 2025, there are 5 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 $596	Free Cancellation	Rating 7.4 8,917 reviews	Search United Airlines flights
Air France	PriceFrom $675	Free Cancellation	Rating 7.4 1,466 reviews	Search Air France flights
Lufthansa	PriceFrom $701	Free Cancellation	Rating 6.8 7,296 reviews	Search Lufthansa flights
KLM	PriceFrom $702	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights
Delta	PriceFrom $730	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights

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Why use momondo?

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.