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$292+ Cheap flights from Seattle (SEA) to Madrid, Spain (MAD)

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MAD
oct. 25 — nov. 11
sáb. 10/25
sáb. 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Madrid Barajas are usually found in September or November, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from Seattle to Madrid

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Madrid (MAD). 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 septiembre 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$508
(Kiwi.com)

One-way from

$292
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$691
Provider with most accurate pricing for Seattle/Tacoma Intl-Madrid Barajas flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Madrid Barajas flights.
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From Seattle/Tacoma Intl to Madrid Barajas
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One-way flight from Seattle/Tacoma Intl to Madrid Barajas
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Highest demand for flights based on searches. 6% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 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 Madrid

Cheapest flights from Seattle to Madrid
Explore the most affordable flight options available from Seattle to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/264:10 pmSEA - MAD
1 stop17h 40mLufthansa
vie. 11/76:00 amMAD - SEA
1 stop15h 10mLufthansa
Deal found 9/25$508
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2511:40 pmSEA - MAD
2 stops24h 20mUnited Airlines
vie. 11/71:35 pmMAD - SEA
2 stops42h 10mUnited Airlines
Deal found 9/25$518
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/266:00 amSEA - MAD
2 stops18h 05mUnited Airlines
vie. 11/71:35 pmMAD - SEA
2 stops42h 10mUnited Airlines
Deal found 9/25$523
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/283:10 pmSEA - MAD
1 stop17h 40mMultiple Airlines
mié. 2/2510:10 amMAD - SEA
2 stops19h 51mMultiple Airlines
Deal found 9/25$525
This Air Canada deal was found by Cheapflights users on 9/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/38:00 pmSEA - MAD
2 stops27h 00mAir Canada
mié. 11/121:35 pmMAD - SEA
2 stops52h 56mAir Canada
Deal found 9/25$527
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/23:10 pmSEA - MAD
1 stop17h 40mLufthansa
mar. 11/116:00 amMAD - SEA
1 stop15h 10mLufthansa
Deal found 9/25$530
This Priceline deal was found by Cheapflights users on 9/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2510:00 amSEA - MAD
2 stops38h 00mMultiple Airlines
vie. 11/76:00 amMAD - SEA
1 stop15h 10mMultiple Airlines
Deal found 9/25$533
This Delta deal was found by Cheapflights users on 9/25. 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.
lun. 11/32:05 pmSEA - MAD
1 stop20h 05mDelta
jue. 11/131:05 pmMAD - SEA
1 stop31h 40mDelta
Deal found 9/25$534
This KAYAK deal was found by Cheapflights users on 9/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/23:40 pmSEA - MAD
2 stops55h 20mLufthansa
jue. 11/136:00 amMAD - SEA
1 stop15h 10mLufthansa
Deal found 9/25$538
This Delta deal was found by Cheapflights users on 9/23. 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.
lun. 11/32:05 pmSEA - MAD
1 stop20h 05mDelta
mié. 11/196:00 amMAD - SEA
1 stop16h 20mDelta
Deal found 9/23$539
This Delta deal was found by Cheapflights users on 9/23. 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.
mié. 11/52:05 pmSEA - MAD
1 stop20h 05mDelta
mar. 11/116:00 amMAD - SEA
1 stop14h 25mDelta
Deal found 9/23$540
This Delta deal was found by Cheapflights users on 9/23. 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.
mar. 11/41:40 pmSEA - MAD
1 stop34h 30mDelta
vie. 11/216:00 amMAD - SEA
1 stop16h 20mDelta
Deal found 9/23$541

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Madrid 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 septiembre 25, 2025.
Use the filters below to find and compare flights from Seattle to Madrid that are best for you.

Fly from

Seattle

Fly to

Madrid

Route

Depart

Return

Price

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

lun. 11/3

2:05 pm-7:10 pm

1 stop20h 05m

Madrid Barajas

lun. 11/10

11:00 am-11:45 am

1 stop33h 45m

$534

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

lun. 11/3

2:05 pm-7:10 pm

1 stop20h 05m

Madrid Barajas

mar. 11/11

11:00 am-11:45 am

1 stop33h 45m

$540

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

lun. 11/3

7:28 pm-8:00 am

2 stops27h 32m

Madrid Barajas

mié. 11/12

11:05 am-8:54 pm

1 stop18h 49m

$541

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

mar. 11/4

9:46 am-5:40 pm

2 stops22h 54m

Madrid Barajas

vie. 11/21

6:00 am-1:20 pm

1 stop16h 20m

$544

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

sáb. 11/1

11:55 pm-8:00 am

2 stops24h 05m

Madrid Barajas

lun. 11/10

1:05 pm-11:45 am

1 stop31h 40m

$545

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

sáb. 10/25

3:40 pm-8:00 am

1 stop31h 20m

Madrid Barajas

vie. 11/7

10:00 am-8:16 pm

1 stop19h 16m

$546

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

sáb. 11/1

3:40 pm-8:00 am

1 stop32h 20m

Madrid Barajas

jue. 11/13

10:00 am-10:25 pm

1 stop21h 25m

$547

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

lun. 11/3

2:05 pm-7:10 pm

1 stop20h 05m

Madrid Barajas

mié. 11/19

6:00 am-8:36 pm

2 stops23h 36m

$549

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

lun. 11/3

2:05 pm-5:40 pm

1 stop18h 35m

Madrid Barajas

mié. 11/12

12:35 pm-10:26 am

2 stops30h 51m

$550

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

lun. 2/9

2:00 pm-4:10 pm

2 stops41h 10m

Madrid Barajas

lun. 2/23

5:00 pm-10:08 pm

2 stops38h 08m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 21 results
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2
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Compare providers for flights from Seattle to Madrid

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Madrid in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*2 stars
Thrive TravelPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Madrid flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Madrid flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Madrid flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Madrid flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-Madrid 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 Seattle to Madrid

Have a flexible travel schedule? Discover the best time to fly to Madrid 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 Madrid

How far ahead should I book a flight from Seattle to Madrid?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Madrid. Price data was last updated on September 19, 2025.

The best time to book flights from Seattle to Madrid is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Madrid (average of $543). Flying from Seattle to Madrid 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 MAD?

Find hourly flight availability from Seattle to Madrid. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 25, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Madrid in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.

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

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

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

Reviews of airlines servicing Madrid

Get insights into the airlines that provide service to Madrid. 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 Madrid. Reviews last updated septiembre 25, 2025.
Read reviews from past customers who have flown Delta, Turkish Airlines, and American Airlines from Seattle to Madrid. 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
7,973 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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!
Turkish Airlines
7.3
Good
3,977 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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!
Iberia
7.0
Good
2,955 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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
7,399 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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 Madrid. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Madrid?

    Delta and United Airlines can get you from Seattle to Madrid in just under 20h 05m. Your travel time can differ by up to 7h 27m. The distance from Seattle to Madrid is about 5292 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Seattle to Madrid round-trip from $360. Other airlines that can offer you cheap pricing are Aer Lingus, from $438, and Scandinavian Airlines, from $475. JetBlue is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • Where are the most common layover locations when flying from Seattle to Madrid?

    Flights departing from Seattle and landing in Madrid layover in London most frequently. Paris is the second most popular location for layovers on flights from Seattle to Madrid.

  • What are some popular things to do or see while on a layover in London?

    The majority of London visitors spend their time at Hyde Park, Buckingham Palace, and Piccadilly Circus. Hyde Park, Buckingham Palace, and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Travelers in need of a car in London can rent one for about $39 per day.

  • What are some popular points of interest to see during a layover in Paris?

    If you're on a layover in Paris and looking for things to do, consider visiting Eiffel Tower, Champs-Elysées, or Louvre Museum. Those on a layover in Paris interested in visiting Eiffel Tower, Champs-Elysées, or Louvre Museum can do so by traveling 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle. Those on a layover in Paris in need of a rental car can book one at Paris Charles de Gaulle for about $37.

  • Where are the least popular layover locations for Seattle to Madrid flights?

    Seattle to Madrid flights have a layover in Dallas least often. Amsterdam follows Dallas in terms of the least common layover location on Seattle to Madrid flights.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Madrid (average of $543). Flying from Seattle to Madrid 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

Traveling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Fuenlabrada
Getafe

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Alternative routes for Seattle to Madrid

See prices for flight routes from nearby airports that may be better suited for you.
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Spokane to Madrid flights
Wenatchee to Madrid flights
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Yakima to Madrid flights

Top 10 airlines flying from Seattle to Madrid

Discover the top 10 airlines that operate flights from Seattle to Madrid. 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 septiembre 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$360Average$1,216FlexibilityNo cancel feeOn-time62%
Aer LingusCheapest$438Average$1,075FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$475Average$506FlexibilityNo cancel feeOn-time77%
IberiaCheapest$547Average$820FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$554Average$841FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$563Average$805FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$566Average$906FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$569Average$858FlexibilityNo cancel feeOn-time77%
DeltaCheapest$572Average$906FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$579Average$986FlexibilityNo cancel feeOn-time76%

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