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$572+ Cheap flights from Bilbao (BIO) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — SEA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap 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 January 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$576
(United Airlines)

Popular in

July

Cheapest in

May
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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Highest demand for flights based on searches. 12% potential increase in price ($152 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Find 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 January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/66:45 amBIO - SEA
1 stop14h 25mUnited Airlines
Tue 2/118:00 amSEA - BIO
2 stops28h 50mUnited Airlines
Deal found 1/20$572
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/36:45 pmBIO - SEA
1 stop27h 35mLufthansa
Mon 3/103:00 pmSEA - BIO
1 stop17h 35mLufthansa
Deal found 1/20$580
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/166:45 amBIO - SEA
2 stops19h 40mMultiple Airlines
Tue 3/2510:35 amSEA - BIO
2 stops23h 30mMultiple Airlines
Deal found 1/20$642
This Delta deal was found by Cheapflights users on 1/21. 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.
Thu 5/2911:05 amBIO - SEA
2 stops20h 20mDelta
Thu 10/211:45 amSEA - BIO
2 stops19h 55mDelta
Deal found 1/21$745
This Booking.com deal was found by Cheapflights users on 1/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/97:15 amBIO - SEA
2 stops23h 58mAir Canada
Fri 6/2012:20 pmSEA - BIO
2 stops21h 05mAir Canada
Deal found 1/21$913
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:50 amBIO - SEA
1 stop13h 50mKLM
Sun 8/106:45 pmSEA - BIO
1 stop18h 15mKLM
Deal found 1/20$1,029
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/116:45 amBIO - SEA
2 stops38h 57mAmerican Airlines
Mon 2/1712:59 amSEA - BIO
2 stops30h 56mAmerican Airlines
Deal found 1/20$1,089
This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/21. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/912:25 pmBIO - SEA
3 stops30h 58mTAP AIR PORTUGAL
Fri 6/2011:23 amSEA - BIO
2 stops21h 12mTAP AIR PORTUGAL
Deal found 1/21$2,343

Find flights from Bilbao to Seattle within your budget

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 January 21, 2025.

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Fly to

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Route

Depart

Return

Price

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Thu 2/6

6:45 am-12:10 pm

1 stop14h 25m

Seattle/Tacoma Intl

Tue 2/11

8:00 am-9:50 pm

2 stops28h 50m

$572

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Mon 3/3

6:45 pm-1:20 pm

1 stop27h 35m

Seattle/Tacoma Intl

Mon 3/10

3:00 pm-4:35 pm

1 stop17h 35m

$580

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Sun 3/16

6:45 am-6:25 pm

2 stops19h 40m

Seattle/Tacoma Intl

Tue 3/25

10:35 am-6:05 pm

2 stops23h 30m

$642

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Thu 5/29

11:05 am-10:25 pm

2 stops20h 20m

Seattle/Tacoma Intl

Tue 9/30

6:45 pm-4:40 pm

1 stop12h 55m

$740

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Mon 6/9

7:15 am-10:13 pm

2 stops23h 58m

Seattle/Tacoma Intl

Fri 6/20

12:20 pm-6:25 pm

2 stops21h 05m

$913

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Tue 2/11

5:20 pm-11:46 am

1 stop27h 26m

Seattle/Tacoma Intl

Tue 2/18

1:35 pm-11:30 am

1 stop12h 55m

$1,006

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Tue 2/11

6:45 am-12:42 pm

2 stops38h 57m

Seattle/Tacoma Intl

Mon 2/17

12:59 am-4:55 pm

2 stops30h 56m

$1,089

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Mon 6/9

12:25 pm-10:23 am

3 stops30h 58m

Seattle/Tacoma Intl

Fri 6/20

11:23 am-5:35 pm

2 stops21h 12m

$2,343

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Thu 5/29

6:25 pm-5:10 pm

1 stop31h 45m

$586

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Thu 5/29

7:55 pm-5:10 pm

2 stops30h 15m

$598

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 13 results
1
2
  • 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.

Travel insights for flights from Bilbao to Seattle

Get recent, data-driven insights about flights from Bilbao to Seattle including ideal travel times, pricing trends, and more.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated January 21, 2025.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Lufthansa
6.8
Okay
7,111 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines flying from Bilbao to Seattle round-trip?

    According to our current data, United Airlines ($576), Lufthansa ($591), and KLM ($1,006) offers the cheapest pricing from Bilbao to Seattle. United Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

  • What is the cheapest month to book a flight from Bilbao to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Bilbao to Seattle (average of $238). Flying from Bilbao to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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