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$318+ Cheap flights from Spain 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Spain to Seattle

Keep the following information in mind while searching for Spain to Seattle flight deals. Data was last updated June 12, 2025.

Round-trip from

$560
(lol.travel)

One-way from

$318
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$1,024
From Spain to Seattle/Tacoma Intl
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One-way flight from Spain to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 13% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Spain to Seattle

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

This lol.travel deal was found by Cheapflights users on 6/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:00 pmBCN - SEA
1 stop27h 50mScandinavian Airlines
Mon 9/84:00 pmSEA - BCN
1 stop17h 10mScandinavian Airlines
Deal found 6/11$560
This lol.travel deal was found by Cheapflights users on 6/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/288:40 pmAGP - SEA
2 stops26h 10mScandinavian Airlines
Mon 9/84:00 pmSEA - AGP
1 stop19h 20mScandinavian Airlines
Deal found 6/10$569
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:30 pmBCN - SEA
1 stop25h 04mMultiple Airlines
Thu 10/23:39 pmSEA - BCN
2 stops35h 46mMultiple Airlines
Deal found 6/12$603
This Condor deal was found by Cheapflights users on 6/10. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/297:05 amMAD - SEA
2 stops21h 04mMultiple Airlines
Mon 10/65:05 pmSEA - MAD
1 stop19h 50mMultiple Airlines
Deal found 6/10$617
This lol.travel deal was found by Cheapflights users on 6/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:50 amBCN - SEA
2 stops16h 26mAir Canada
Thu 10/25:30 amSEA - BCN
2 stops17h 20mAir Canada
Deal found 6/11$627
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:50 amBCN - SEA
1 stop14h 05mLufthansa
Sun 10/264:10 pmSEA - BCN
1 stop17h 25mLufthansa
Deal found 6/10$635
This lol.travel deal was found by Cheapflights users on 6/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2912:30 pmMAD - SEA
2 stops40h 01mAir Canada
Mon 10/65:30 amSEA - MAD
2 stops16h 10mAir Canada
Deal found 6/11$646
This Trip.com deal was found by Cheapflights users on 6/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:05 amAGP - SEA
2 stops40h 45mMultiple Airlines
Mon 9/84:00 pmSEA - AGP
2 stops23h 40mMultiple Airlines
Deal found 6/12$647
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:45 amBIO - SEA
2 stops21h 46mUnited Airlines
Mon 9/291:57 pmSEA - BIO
2 stops24h 28mUnited Airlines
Deal found 6/11$650
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 9/116:50 amBCN - SEA
2 stops16h 26mUnited Airlines
Thu 10/25:00 amSEA - BCN
1 stop24h 00mUnited Airlines
Deal found 6/10$654
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:45 amBIO - SEA
1 stop14h 10mLufthansa
Tue 9/307:00 amSEA - BIO
2 stops31h 25mLufthansa
Deal found 6/11$661
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Wed 9/36:45 amBIO - SEA
2 stops21h 46mAir Canada
Sun 9/287:15 pmSEA - BIO
2 stops38h 30mAir Canada
Deal found 6/11$664

Cheapflights Fare Finder

Customize your flight search to find flights from Spain 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 June 12, 2025.
Use the filters below to find and compare flights from Spain to Seattle that are best for you.

Fly from

Spain

Fly to

Seattle

Route

Depart

Return

Price

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sat 8/30

7:00 pm-1:50 pm

1 stop27h 50m

Seattle/Tacoma Intl

Mon 9/8

4:00 pm-6:10 pm

1 stop17h 10m

$560

MálagaSeattle

AGP - SEA

AGPSEA

Malaga

Thu 8/28

8:40 pm-1:50 pm

2 stops26h 10m

Seattle/Tacoma Intl

Mon 9/8

4:00 pm-8:20 pm

1 stop19h 20m

$569

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

6:30 pm-10:34 am

1 stop25h 04m

Seattle/Tacoma Intl

Thu 10/2

3:39 pm-12:25 pm

2 stops35h 46m

$603

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Mon 9/29

7:05 am-7:09 pm

2 stops21h 04m

Seattle/Tacoma Intl

Mon 10/6

5:05 pm-9:55 pm

1 stop19h 50m

$617

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

6:50 am-2:16 pm

2 stops16h 26m

Seattle/Tacoma Intl

Thu 10/2

5:30 am-7:50 am

2 stops17h 20m

$627

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/16

6:50 am-11:55 am

1 stop14h 05m

Seattle/Tacoma Intl

Sun 10/26

4:10 pm-5:35 pm

1 stop17h 25m

$635

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Mon 9/29

12:30 pm-7:31 pm

2 stops40h 01m

Seattle/Tacoma Intl

Mon 10/6

5:30 am-6:40 am

2 stops16h 10m

$646

MálagaSeattle

AGP - SEA

AGPSEA

Malaga

Thu 8/28

6:05 am-1:50 pm

2 stops40h 45m

Seattle/Tacoma Intl

Mon 9/8

4:00 pm-12:40 am

2 stops23h 40m

$647

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Wed 9/3

6:45 am-7:31 pm

2 stops21h 46m

Seattle/Tacoma Intl

Mon 9/29

1:57 pm-11:25 pm

2 stops24h 28m

$650

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

6:50 am-2:16 pm

2 stops16h 26m

Seattle/Tacoma Intl

Thu 10/2

5:00 am-2:00 pm

1 stop24h 00m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Best time to book a flight from Spain to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Spain 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.

Cheapflights Insights

Everything you need to know about your flight from Spain to Seattle

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

Currently, January is the cheapest month in which you can book a flight from Spain to Seattle (average of $238). Flying from Spain to Seattle in July is currently the most expensive (average of $391). 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.

What is the cheapest time of day to fly from ES to SEA?

Find hourly flight availability from Spain to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Spain to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 June 12, 2025.
To help decide which airline to fly from Spain to Seattle, see what other customers have to say about Delta, KLM and Austrian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Spain?

    For a flight from Spain to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • What are the cheapest airlines to fly from Spain to Seattle one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $453. However, be on the lookout for offers from TAP AIR PORTUGAL and Aer Lingus, as they are both options that can get you from Spain to Seattle for a low price.

  • What are the most popular routes from Spain to Seattle?

    Most travelers choose Madrid Barajas - Seattle/Tacoma Intl, Barcelona-El Prat - Seattle/Tacoma Intl or Valencia - Seattle/Tacoma Intl when deciding on the best route from Spain to Seattle.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Spain 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 Spain to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Spain to Seattle (average of $238). Flying from Spain to Seattle in July is currently the most expensive (average of $391). 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 Spain?

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

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Alternative routes for Spain to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Spain to Seattle

Discover the top 6 airlines that operate flights from Spain to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$604Average$895FlexibilityNo cancel feeOn-time77%
KLMCheapest$677Average$933FlexibilityNo cancel feeOn-time75%
DeltaCheapest$686Average$855FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$720Average$1,019FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$753Average$840FlexibilityNo cancel feeOn-time71%
IberiaCheapest$802Average$974FlexibilityNo cancel feeOn-time77%

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