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$222+ Cheap flights from Seattle (SEA) to Spain

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MAD
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Find flight deals from Seattle to Spain

Cheapest flights from Seattle to Spain
Explore the most affordable flight options available from Seattle to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

This Delta deal was found by Cheapflights users on 11/17. 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.
Sun 11/303:00 pmSEA - MAD
1 stop34h 15mDelta
Mon 12/81:05 pmMAD - SEA
1 stop31h 45mDelta
Deal found 11/17$481
This FlightHub deal was found by Cheapflights users on 11/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:45 amSEA - MAD
2 stops41h 15mMultiple Airlines
Tue 12/97:35 pmMAD - SEA
2 stops34h 25mMultiple Airlines
Deal found 11/17$486
This Delta deal was found by Cheapflights users on 11/17. 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.
Sat 11/296:00 amSEA - MAD
1 stop18h 15mDelta
Fri 12/1210:00 amMAD - SEA
1 stop19h 13mDelta
Deal found 11/17$488
This Delta deal was found by Cheapflights users on 11/17. 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.
Sun 11/303:00 pmSEA - MAD
1 stop34h 15mDelta
Tue 12/96:00 amMAD - SEA
2 stops25h 23mDelta
Deal found 11/17$489
This Delta deal was found by Cheapflights users on 11/17. 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 12/47:20 amSEA - MAD
1 stop15h 40mDelta
Fri 12/1210:00 amMAD - SEA
2 stops22h 58mDelta
Deal found 11/17$493
This KAYAK deal was found by Cheapflights users on 11/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/293:40 pmSEA - MAD
2 stops31h 20mLufthansa
Mon 12/88:25 amMAD - SEA
1 stop36h 45mLufthansa
Deal found 11/17$497
This Delta deal was found by Cheapflights users on 11/17. 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.
Sat 11/296:00 amSEA - MAD
1 stop18h 15mDelta
Tue 12/96:00 amMAD - SEA
1 stop14h 25mDelta
Deal found 11/17$502
This Delta deal was found by Cheapflights users on 11/17. 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.
Sat 11/296:00 amSEA - MAD
1 stop18h 15mDelta
Mon 12/81:05 pmMAD - SEA
1 stop31h 45mDelta
Deal found 11/17$503
This Gurufare deal was found by Cheapflights users on 11/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/83:40 pmSEA - MAD
2 stops31h 20mLufthansa
Mon 12/155:00 pmMAD - SEA
1 stop28h 10mLufthansa
Deal found 11/18$506
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/45:00 amSEA - MAD
2 stops19h 15mUnited Airlines
Tue 12/96:00 amMAD - SEA
1 stop15h 10mUnited Airlines
Deal found 11/17$507
This CheapOair deal was found by Cheapflights users on 11/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:50 pmSEA - MAD
1 stop18h 40mBritish Airways
Tue 12/91:15 pmMAD - SEA
1 stop17h 35mBritish Airways
Deal found 11/18$508
This Delta deal was found by Cheapflights users on 11/18. 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.
Mon 12/83:05 pmSEA - MAD
1 stop19h 35mDelta
Mon 12/1511:15 amMAD - SEA
1 stop18h 35mDelta
Deal found 11/18$515

Cheap flight deals from Seattle to Spain

Keep the following information in mind while searching for Seattle to Spain flight deals. Data was last updated November 20, 2025.

Round-trip from

$456
(oojo)

One-way from

$222
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$748

Good round-trip deal

$1,625 or less
From Seattle/Tacoma Intl to Spain
Search Deals
One-way flight from Seattle/Tacoma Intl to Spain
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($273 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Spain.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Spain 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 November 20, 2025.
Use the filters below to find and compare flights from Seattle to Spain that are best for you.

Fly from

Seattle

Fly to

Spain

Route

Depart

Return

Price

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Thu 1/22

1:40 pm-5:55 pm

1 stop19h 15m

Valencia

Mon 1/26

6:00 am-11:50 am

1 stop14h 50m

$470

SeattleMálaga

SEA - AGP

SEAAGP

Seattle/Tacoma Intl

Fri 1/30

2:10 pm-4:55 pm

1 stop17h 45m

Malaga

Thu 2/5

10:40 am-11:40 am

1 stop34h 00m

$471

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/29

1:40 pm-10:25 pm

1 stop23h 45m

Bilbao

Fri 2/6

6:50 am-11:40 am

1 stop13h 50m

$472

SeattleMálaga

SEA - AGP

SEAAGP

Seattle/Tacoma Intl

Thu 1/22

1:40 pm-12:20 pm

1 stop13h 40m

Malaga

Sat 1/31

8:25 pm-11:40 am

1 stop24h 15m

$472

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/29

1:40 pm-10:25 pm

1 stop23h 45m

Bilbao

Sun 2/8

5:20 pm-11:40 am

1 stop27h 20m

$472

SeattleMálaga

SEA - AGP

SEAAGP

Seattle/Tacoma Intl

Thu 1/1

1:40 pm-4:55 pm

1 stop18h 15m

Malaga

Tue 2/10

8:25 pm-11:40 am

1 stop24h 15m

$472

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/29

8:10 am-4:40 pm

2 stops23h 30m

Bilbao

Sun 2/8

7:25 am-7:16 pm

2 stops20h 51m

$472

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/29

2:10 pm-9:55 pm

2 stops22h 45m

Bilbao

Sun 2/8

7:25 am-1:20 pm

1 stop14h 55m

$473

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Fri 1/30

3:10 pm-11:20 pm

1 stop23h 10m

Bilbao

Sun 2/8

7:25 am-1:20 pm

1 stop14h 55m

$473

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 1/21

3:10 pm-6:05 pm

1 stop17h 55m

Bilbao

Sun 1/25

7:25 am-1:20 pm

1 stop14h 55m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

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

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

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Spain (average of $391). Flying from Seattle to Spain in June is currently the most expensive (average of $840). 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 SEA to ES?

Find hourly flight availability from Seattle to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

It’s optimal to fly from Seattle to Spain in the morning. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Seattle to Spain?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Spain. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Spain flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] delayed?

About 0% of weekly flights between $[0, place:'genitive'] and $[1, place:'genitive'] have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

Reviews of airlines servicing Spain

Get insights into the airlines that provide service to Spain. 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 Spain. Reviews last updated November 20, 2025.
Read reviews from past customers who have flown Delta, KLM, and Air France from Seattle to Spain. 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
7.9
Good
8,002 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,414 reviews
Delta
7.9
Good
8,002 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air France
7.4
Good
1,493 reviews
Delta
7.9
Good
8,002 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,579 reviews
Delta
7.9
Good
8,002 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,533 reviews
Delta
7.9
Good
8,002 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Spain. 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 from for flights from Seattle to Spain?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Spain.

  • How long is the flight from Seattle to Spain?

    Departing from Seattle to Spain will take you 19h 15m. The distance between Seattle and Spain is about 5445 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $275 on Delta. Other airlines that offer cheap prices include Scandinavian Airlines from $302 and British Airways from $394 one-way.

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

    The most popular flight routes from Seattle to Spain are Seattle/Tacoma Intl - Barcelona-El Prat, Seattle/Tacoma Intl - Madrid Barajas and Seattle/Tacoma Intl - Bilbao.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Spain (average of $391). Flying from Seattle to Spain in June is currently the most expensive (average of $840). 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

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Spain

Discover the top 10 airlines that operate flights from Seattle to Spain. 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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$360Average$1,216FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$389Average$620FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$438Average$843FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$465Average$565FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$478Average$748FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$484Average$935FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$492Average$892FlexibilityNo cancel feeOn-time69%
IberiaCheapest$507Average$826FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$514Average$969FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$518Average$995FlexibilityNo cancel feeOn-time71%

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