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Cheap flights from Seattle to Bilbao from $305

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bilbao departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
7:10 pm - 5:20 pm
SEA
-
BIO
37h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 5:15 pm
BIO
-
SEA
38h 05m
1 stop
$656Turkish Airlines
Tue, Sep 1 - Tue, Sep 8
Turkish Airlines Logo
7:10 pm - 11:10 am
SEA
-
BIO
31h 00m
1 stop
Turkish Airlines Logo
6:20 pm - 5:15 pm
BIO
-
SEA
31h 55m
1 stop
$666Turkish Airlines
Thu, Apr 16 - Thu, Apr 30
Lufthansa Logo
6:50 pm - 11:25 pm
SEA
-
BIO
19h 35m
1 stop
Lufthansa Logo
6:50 am - 11:55 am
BIO
-
SEA
14h 05m
1 stop
$671Lufthansa
Sun, Sep 6 - Tue, Sep 29
Lufthansa Logo
6:50 pm - 11:25 pm
SEA
-
BIO
19h 35m
1 stop
Lufthansa Logo
6:50 am - 11:55 am
BIO
-
SEA
14h 05m
1 stop
$672Lufthansa
Tue, Jul 28 - Wed, Aug 26
Lufthansa Logo
6:50 pm - 11:25 pm
SEA
-
BIO
19h 35m
1 stop
Lufthansa Logo
6:50 am - 6:59 pm
BIO
-
SEA
21h 09m
2 stops
$680Lufthansa
Sun, Sep 6 - Thu, Oct 1
Turkish Airlines Logo
7:10 pm - 5:20 pm
SEA
-
BIO
37h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 5:15 pm
BIO
-
SEA
38h 05m
1 stop
$681Turkish Airlines
Tue, Sep 1 - Tue, Sep 8
Turkish Airlines Logo
7:10 pm - 11:10 am
SEA
-
BIO
31h 00m
1 stop
Turkish Airlines Logo
6:20 pm - 5:15 pm
BIO
-
SEA
31h 55m
1 stop
$682Turkish Airlines
Thu, May 7 - Thu, May 14
Turkish Airlines Logo
7:10 pm - 5:20 pm
SEA
-
BIO
37h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 5:15 pm
BIO
-
SEA
38h 05m
1 stop
$683Turkish Airlines
Tue, May 5 - Tue, May 12
Scandinavian Airlines Logo
7:15 am - 11:35 am
SEA
-
BIO
43h 20m
2 stops
Scandinavian Airlines Logo
7:35 pm - 1:45 pm
BIO
-
SEA
27h 10m
1 stop
$689Scandinavian Airlines
Sat, May 2 - Fri, May 22
Turkish Airlines Logo
7:10 pm - 11:10 am
SEA
-
BIO
31h 00m
1 stop
Turkish Airlines Logo
12:10 pm - 5:15 pm
BIO
-
SEA
38h 05m
1 stop
$696Turkish Airlines
Sat, May 2 - Fri, May 22

Turkish Airlines flights from Seattle to Bilbao

Our best Turkish Airlines deals on Seattle to Bilbao flight tickets
Turkish Airlines
Sep 1
SEA7:10 pmSeattle/Tacoma Intl
37h 10m
1 stop
BIO5:20 pmBilbao
Sep 8
BIO12:10 pmBilbao
38h 05m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$656
Turkish Airlines
Apr 16
SEA7:10 pmSeattle/Tacoma Intl
31h 00m
1 stop
BIO11:10 amBilbao
Apr 30
BIO6:20 pmBilbao
31h 55m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$666
Turkish Airlines
Sep 1
SEA7:10 pmSeattle/Tacoma Intl
37h 10m
1 stop
BIO5:20 pmBilbao
Sep 8
BIO12:10 pmBilbao
38h 05m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$681

Lufthansa flights from Seattle to Bilbao

Our best Lufthansa deals on Seattle to Bilbao flight tickets
Lufthansa
Sep 6
SEA6:50 pmSeattle/Tacoma Intl
19h 35m
1 stop
BIO11:25 pmBilbao
Sep 29
BIO6:50 amBilbao
14h 05m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$671
Lufthansa
Jul 28
SEA6:50 pmSeattle/Tacoma Intl
19h 35m
1 stop
BIO11:25 pmBilbao
Aug 26
BIO6:50 amBilbao
14h 05m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$672
Lufthansa
Sep 6
SEA6:50 pmSeattle/Tacoma Intl
19h 35m
1 stop
BIO11:25 pmBilbao
Oct 1
BIO6:50 amBilbao
21h 09m
2 stops
SEA6:59 pmSeattle/Tacoma Intl
$680

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 24, 2026.
Use the filters below to find and compare flights from Seattle to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Tue 9/1

7:10 pm-5:20 pm

1 stop37h 10m

Bilbao

Tue 9/8

12:10 pm-5:15 pm

1 stop38h 05m

$656

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 4/16

7:10 pm-11:10 am

1 stop31h 00m

Bilbao

Thu 4/30

6:20 pm-5:15 pm

1 stop31h 55m

$666
Quickest round-trip

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 9/6

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Tue 9/29

6:50 am-11:55 am

1 stop14h 05m

$671

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Tue 7/28

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Wed 8/26

6:50 am-11:55 am

1 stop14h 05m

$672

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 9/6

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Thu 10/1

6:50 am-6:59 pm

2 stops21h 09m

$680

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Tue 9/1

7:10 pm-5:20 pm

1 stop37h 10m

Bilbao

Tue 9/8

12:10 pm-5:15 pm

1 stop38h 05m

$681

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 5/7

7:10 pm-11:10 am

1 stop31h 00m

Bilbao

Thu 5/14

6:20 pm-5:15 pm

1 stop31h 55m

$682

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Tue 5/5

7:10 pm-5:20 pm

1 stop37h 10m

Bilbao

Tue 5/12

12:10 pm-5:15 pm

1 stop38h 05m

$683

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sat 5/2

7:15 am-11:35 am

2 stops43h 20m

Bilbao

Fri 5/22

7:35 pm-1:45 pm

1 stop27h 10m

$689

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sat 5/2

7:10 pm-11:10 am

1 stop31h 00m

Bilbao

Fri 5/22

12:10 pm-5:15 pm

1 stop38h 05m

$696

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Bilbao from

How to get the cheapest flight ticket from Seattle 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

What airlines fly to Bilbao?

Lufthansa, United Airlines and KLM are the top three most popular airlines that fly to Bilbao from Seattle 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.

When to book flights from Seattle to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Bilbao according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Bilbao (SEA to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Bilbao

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from Seattle to Bilbao takes 14h 05m
There are no direct flights from Seattle to Bilbao. There are no popular flight routes from Seattle to Bilbao.
Search flight deals

  • How far is Seattle/Tacoma Intl to Bilbao by plane?

    The distance between Seattle/Tacoma Intl and Bilbao is about 5152.4 mi. 14h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bilbao Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Bilbao Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bilbao Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport 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 Seattle/Tacoma Intl Airport to Bilbao Airport.

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

    The travel and health documents required for your trip to Bilbao Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bilbao Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Bilbao?

Best airlines flying from Seattle to Bilbao

Compare and see reviews for airlines that fly from Seattle to Bilbao with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $484Free CancellationRating
7.4
9,463 reviews
Search United Airlines flights
LufthansaPriceFrom $484Free CancellationRating
6.8
7,863 reviews
Search Lufthansa flights
KLMPriceFrom $581Free CancellationRating
7.8
1,477 reviews
Search KLM flights
DeltaPriceFrom $654Free CancellationRating
7.9
8,318 reviews
Search Delta flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Getxo
Laredo
Lekeitio

Why use momondo?

Why should I use momondo to find a flight deal from Seattle 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 Seattle.

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

Yes. momondo allows you to filter the results for Seattle to Bilbao flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle 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 Seattle.

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

If you are not ready to book a flight from Seattle to Bilbao now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bilbao and let you know when they change.

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