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$262+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MAD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$449
(oojo)

One-way from

$262
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$742
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. 25% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/123:45 pmSEA - BCN
1 stop14h 00mIcelandair
Wed 10/223:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/14$449
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:00 pmSEA - BCN
1 stop34h 45mIcelandair
Wed 10/223:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/14$451
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sat 10/187:00 pmSEA - BCN
1 stop34h 45mIcelandair
Sat 10/253:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/15$454
This lastminute.com deal was found by Cheapflights users on 9/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:35 pmSEA - BCN
1 stop17h 50mAer Lingus
Wed 10/2211:00 amBCN - SEA
1 stop15h 50mAer Lingus
Deal found 9/17$483
This Booking.com deal was found by Cheapflights users on 9/15. 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 10/137:35 pmSEA - BCN
1 stop17h 50mAer Lingus
Wed 10/2211:00 amBCN - SEA
1 stop15h 50mAer Lingus
Deal found 9/15$487
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:44 amSEA - BCN
1 stop17h 26mIberia
Wed 10/2210:45 amBCN - SEA
1 stop19h 01mIberia
Deal found 9/15$494
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:39 amSEA - BCN
1 stop14h 51mBritish Airways
Wed 10/222:00 pmBCN - SEA
1 stop17h 16mBritish Airways
Deal found 9/16$495
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:45 pmSEA - BCN
2 stops24h 35mMultiple Airlines
Thu 10/1611:00 amBCN - SEA
2 stops15h 50mMultiple Airlines
Deal found 9/16$496
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:09 amSEA - BCN
1 stop15h 01mBritish Airways
Wed 10/810:45 amBCN - SEA
1 stop22h 42mBritish Airways
Deal found 9/15$499
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Wed 11/1911:15 amSEA - AGP
2 stops21h 25mScandinavian Airlines
Fri 12/57:35 pmAGP - SEA
2 stops36h 41mScandinavian Airlines
Deal found 9/14$499
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:35 pmSEA - BCN
2 stops17h 15mMultiple Airlines
Tue 11/45:45 amBCN - SEA
2 stops20h 15mMultiple Airlines
Deal found 9/15$501
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/163:45 pmSEA - BCN
2 stops24h 45mMultiple Airlines
Thu 10/2311:00 amBCN - SEA
2 stops18h 40mMultiple Airlines
Deal found 9/16$503

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 September 17, 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

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 11/4

10:08 pm-7:05 am

1 stop23h 57m

Barcelona-El Prat

Wed 11/19

12:30 pm-10:20 pm

1 stop18h 50m

$499

SeattlePalma de Mallorca

SEA - PMI

SEAPMI

Seattle/Tacoma Intl

Thu 1/15

10:55 am-11:10 am

2 stops39h 15m

Palma de Mallorca Son Sant Joan

Sun 1/25

12:00 pm-10:22 pm

2 stops43h 22m

$511

SeattleMálaga

SEA - AGP

SEAAGP

Seattle/Tacoma Intl

Thu 3/12

10:55 am-9:55 am

2 stops39h 00m

Malaga

Tue 3/24

6:30 pm-10:16 pm

2 stops35h 46m

$513

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 11/12

2:11 pm-6:20 pm

2 stops43h 09m

Barcelona-El Prat

Fri 11/21

7:10 pm-11:01 pm

2 stops36h 51m

$521

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Wed 11/26

7:00 am-4:00 pm

2 stops24h 00m

Madrid Barajas

Mon 12/8

1:35 pm-10:28 pm

2 stops41h 53m

$539

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Fri 11/14

5:50 am-4:10 pm

2 stops25h 20m

Madrid Barajas

Fri 11/21

1:35 pm-2:31 pm

2 stops33h 56m

$539

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Sun 11/2

3:10 pm-5:50 pm

1 stop17h 40m

Madrid Barajas

Sun 11/16

7:25 am-1:20 pm

1 stop14h 55m

$542

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Thu 10/16

7:30 am-8:20 am

1 stop15h 50m

Madrid Barajas

Thu 10/23

11:15 am-3:52 pm

1 stop37h 37m

$543

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 11/28

6:50 pm-7:50 pm

1 stop16h 00m

Barcelona-El Prat

Thu 12/4

12:30 pm-9:50 pm

1 stop18h 20m

$549

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 11/6

6:50 pm-10:35 pm

1 stop18h 45m

Barcelona-El Prat

Tue 11/18

12:50 pm-10:09 pm

1 stop18h 19m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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, November is the cheapest month in which you can book a flight from Seattle to Spain (average of $543). Flying from Seattle to Spain in June is currently the most expensive (average of $1,054). 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 September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Spain as you normally would.

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 September 17, 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
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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
1,386 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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
7.4
Good
1,468 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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!
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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!
British Airways
6.7
Okay
7,367 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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 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 24h. The distance between Seattle and Spain is about 5292 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 $313 on Scandinavian Airlines. Other airlines that offer cheap prices include WestJet from $385 and KLM from $507 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 - Madrid Barajas, Seattle/Tacoma Intl - Barcelona-El Prat and Seattle/Tacoma Intl - Malaga.

  • 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, November is the cheapest month in which you can book a flight from Seattle to Spain (average of $543). Flying from Seattle to Spain in June is currently the most expensive (average of $1,054). 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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Alternative routes for Seattle to Spain

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$360Average$1,216FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$388Average$742FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$438Average$878FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$465Average$567FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$478Average$825FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$484Average$964FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$501Average$918FlexibilityNo cancel feeOn-time69%
IberiaCheapest$507Average$814FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$518Average$983FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$567Average$1,015FlexibilityNo cancel feeOn-time76%

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