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$677+ Cheap flights from Bilbao (BIO) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — SEA
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Bilbao to Seattle

Cheapest flights from Bilbao to Seattle
Explore the most affordable flight options available from Bilbao to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This Rumbo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/1512:00 pmBIO - SEA
1 stop38h 05mTurkish Airlines
lun. 12/227:00 pmSEA - BIO
1 stop36h 10mTurkish Airlines
Deal found 12/11$881
This Turkish Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/1510:05 pmBIO - SEA
2 stops28h 00mMultiple Airlines
lun. 12/227:00 pmSEA - BIO
1 stop36h 10mMultiple Airlines
Deal found 12/10$981
This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:45 amBIO - SEA
3 stops25h 01mAir Canada
lun. 12/228:00 pmSEA - BIO
3 stops31h 05mAir Canada
Deal found 12/11$1,342
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:50 amBIO - SEA
1 stop14h 00mDelta
lun. 12/222:05 pmSEA - BIO
1 stop18h 15mDelta
Deal found 12/11$1,490
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:45 amBIO - SEA
1 stop14h 25mUnited Airlines
lun. 12/2211:15 pmSEA - BIO
2 stops26h 35mUnited Airlines
Deal found 12/10$1,800
This Iberia deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/159:15 amBIO - SEA
2 stops23h 23mIberia
lun. 12/227:20 amSEA - BIO
2 stops20h 30mIberia
Deal found 12/10$1,861

Find flight deals from Bilbao to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$816
(United Airlines)

One-way from

$677
(WestJet)

Popular in

August

Cheapest in

February

Average price

$1,181
Provider with most accurate pricing for Bilbao-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Bilbao-Seattle/Tacoma Intl flights.
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From Bilbao to Seattle/Tacoma Intl
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One-way flight from Bilbao to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Bilbao to Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
Use the filters below to find and compare flights from Bilbao to Seattle that are best for you.

Fly from

Bilbao

Fly to

Seattle

Route

Depart

Return

Price

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

sáb. 1/24

12:50 pm-10:43 pm

3 stops42h 53m

Seattle/Tacoma Intl

sáb. 1/31

10:58 am-11:20 pm

2 stops27h 22m

$816

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

mié. 1/14

5:10 pm-5:05 pm

1 stop32h 55m

Seattle/Tacoma Intl

dom. 1/18

7:00 pm-11:00 am

1 stop31h 00m

$912

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

mié. 1/14

12:50 pm-7:16 pm

2 stops39h 26m

Seattle/Tacoma Intl

dom. 1/18

10:05 am-6:05 pm

2 stops23h 00m

$913

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

dom. 3/1

7:25 am-2:19 pm

2 stops39h 54m

$677

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

sáb. 2/28

6:45 am-3:40 pm

1 stop17h 55m

$1,001

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

dom. 3/1

7:25 am-6:03 pm

3 stops43h 38m

$1,620

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

  • Most accurate provider: When it comes to deals on Bilbao-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bilbao-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bilbao-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bilbao-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bilbao to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bilbao with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Bilbao to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bilbao to Seattle?

    United Airlines, Turkish Airlines, and Air Canada can get you from Bilbao to Seattle in just under 32h 55m. Your travel time can differ by up to 9h 58m. Bilbao and Seattle are separated by a distance of 5159 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Bilbao to Seattle that include hotel bookings?

    Yes. In addition to deals on Bilbao to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to Seattle.

  • Can I find deals for business class flights from Bilbao to Seattle?

    Yes. Cheapflights offers flight deals from Bilbao to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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