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$250+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MAD
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
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 October 27, 2025.

This Mytrip deal was found by Cheapflights users on 10/25. 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 11/112:35 pmSEA - BCN
2 stops21h 55mMultiple Airlines
Tue 11/185:45 amBCN - SEA
2 stops20h 15mMultiple Airlines
Deal found 10/25$480
This FlightHub deal was found by Cheapflights users on 10/26. 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 11/268:05 pmSEA - BCN
1 stop15h 20mAer Lingus
Wed 12/311:30 amBCN - SEA
1 stop15h 50mAer Lingus
Deal found 10/26$492
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Fri 11/283:10 pmSEA - BIO
1 stop23h 10mMultiple Airlines
Thu 12/116:45 amBIO - SEA
2 stops21h 31mMultiple Airlines
Deal found 10/26$497
This lol.travel deal was found by Cheapflights users on 10/26. 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.
Fri 11/283:10 pmSEA - BIO
1 stop23h 10mLufthansa
Thu 12/116:45 amBIO - SEA
1 stop14h 25mLufthansa
Deal found 10/26$500
This Air France deal was found by Cheapflights users on 10/26. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/251:40 pmSEA - MAD
1 stop19h 00mAir France
Sat 12/66:00 amMAD - SEA
1 stop14h 25mAir France
Deal found 10/26$501
This Air France deal was found by Cheapflights users on 10/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:05 pmSEA - MAD
1 stop18h 35mAir France
Fri 11/2110:00 amMAD - SEA
1 stop19h 06mAir France
Deal found 10/27$502
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Wed 11/128:05 pmSEA - BCN
1 stop19h 20mMultiple Airlines
Wed 11/195:45 amBCN - SEA
1 stop21h 35mMultiple Airlines
Deal found 10/27$502
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Tue 11/253:37 pmSEA - MAD
2 stops18h 08mMultiple Airlines
Tue 12/26:35 pmMAD - SEA
1 stop27h 45mMultiple Airlines
Deal found 10/26$503
This Expedia deal was found by Cheapflights users on 10/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:50 pmSEA - MAD
1 stop34h 25mBritish Airways
Sat 11/2211:35 amMAD - SEA
1 stop20h 43mBritish Airways
Deal found 10/24$504
This Delta deal was found by Cheapflights users on 10/25. 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.
Tue 11/251:40 pmSEA - MAD
1 stop16h 40mDelta
Sat 12/611:00 amMAD - SEA
2 stops20h 25mDelta
Deal found 10/25$506
This Delta deal was found by Cheapflights users on 10/26. 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.
Tue 10/286:00 amSEA - MAD
1 stop18h 05mDelta
Mon 11/1010:00 amMAD - SEA
2 stops22h 56mDelta
Deal found 10/26$512
This CrystalTravel deal was found by Cheapflights users on 10/24. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:00 pmSEA - MAD
1 stop24h 50mLufthansa
Sun 12/147:25 amMAD - SEA
1 stop14h 55mLufthansa
Deal found 10/24$513

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 October 27, 2025.

Round-trip from

$477
(FlightHub)

One-way from

$250
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$675
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 ($281 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 27, 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

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Fri 11/28

3:10 pm-11:20 pm

1 stop23h 10m

Bilbao

Thu 12/11

6:45 am-7:16 pm

2 stops21h 31m

$497

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Fri 1/16

9:25 am-3:20 pm

2 stops20h 55m

Madrid Barajas

Wed 1/21

6:00 am-12:09 am

2 stops27h 09m

$516

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 2/18

3:10 pm-6:05 pm

1 stop17h 55m

Bilbao

Sat 2/28

6:45 am-12:10 pm

1 stop14h 25m

$517

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Fri 1/16

12:35 pm-11:50 am

2 stops38h 15m

Valencia

Sun 2/8

12:40 pm-9:12 pm

2 stops41h 32m

$519

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Tue 1/13

1:40 pm-12:00 pm

1 stop13h 20m

Valencia

Thu 2/19

6:00 am-11:40 am

1 stop14h 40m

$519

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Fri 1/16

2:10 pm-5:55 pm

1 stop18h 45m

Valencia

Sun 2/8

4:55 pm-11:40 am

1 stop27h 45m

$519

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Thu 12/4

1:40 pm-12:00 pm

1 stop13h 20m

Valencia

Thu 12/11

6:00 am-11:50 am

1 stop14h 50m

$519

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Tue 1/13

1:40 pm-12:00 pm

1 stop13h 20m

Valencia

Fri 2/20

6:00 am-11:40 am

1 stop14h 40m

$519

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Sun 1/11

3:10 pm-5:35 pm

1 stop17h 25m

Valencia

Thu 2/19

6:00 am-7:16 pm

2 stops22h 16m

$520

SeattleValencia

SEA - VLC

SEAVLC

Seattle/Tacoma Intl

Sun 1/11

3:10 pm-5:35 pm

1 stop17h 25m

Valencia

Tue 2/17

6:20 pm-1:20 pm

1 stop28h 00m

$522

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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 October 27, 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.

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 October 27, 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
7,994 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
KLM
7.7
Good
1,406 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air France
7.4
Good
1,479 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Lufthansa
6.8
Okay
7,532 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,476 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 17h 55m. The distance between Seattle and Spain is about 5159 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 $382 on Aer Lingus. Other airlines that offer cheap prices include Icelandair from $409 and Air Canada from $463 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, 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.

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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$360Average$1,216FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$389Average$620FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$438Average$820FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$465Average$562FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$478Average$748FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$484Average$938FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$493Average$892FlexibilityNo cancel feeOn-time69%
IberiaCheapest$507Average$822FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$514Average$967FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$518Average$995FlexibilityNo cancel feeOn-time71%

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