$389 Cheap Flights from Seattle (SEA) to Madrid (MAD)

View $389 flight on Tue, Aug 12, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD)

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Cheap Flights from Seattle to Madrid (SEA-MAD)

Prices were available within the past 7 days and start at $389 for one-way flights and $499 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
MAD
Madrid
$499 Roundtrip, found 21 hours ago
$499
Roundtrip
found 21 hours ago
Select Aer Lingus flight, departing Wed, Nov 12 from Seattle to Madrid, returning Wed, Nov 19, priced at $499 found 21 hours ago
Air Canada
Tue, Nov 11 - Wed, Nov 19
SEA
Seattle
MAD
Madrid
$572 Roundtrip, found 2 hours ago
$572
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Tue, Nov 11 from Seattle to Madrid, returning Wed, Nov 19, priced at $572 found 2 hours ago
United
Tue, Aug 19 - Tue, Sep 9
SEA
Seattle
MAD
Madrid
$577 Roundtrip, found 8 hours ago
$577
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Aug 19 from Seattle to Madrid, returning Tue, Sep 9, priced at $577 found 8 hours ago
Scandinavian Airlines
Fri, Sep 26 - Tue, Oct 21
SEA
Seattle
MAD
Madrid
$582 Roundtrip, just found
$582
Roundtrip
just found
Select Scandinavian Airlines flight, departing Fri, Sep 26 from Seattle to Madrid, returning Tue, Oct 21, priced at $582 just found
JetBlue Airways
Sun, Sep 28 - Thu, Oct 16
SEA
Seattle
MAD
Madrid
$585 Roundtrip, just found
$585
Roundtrip
just found
Select JetBlue Airways flight, departing Sun, Sep 28 from Seattle to Madrid, returning Thu, Oct 16, priced at $585 just found
Brussels Airlines
Tue, Oct 7 - Tue, Oct 14
SEA
Seattle
MAD
Madrid
$586 Roundtrip, found 3 hours ago
$586
Roundtrip
found 3 hours ago
Select Brussels Airlines flight, departing Tue, Oct 7 from Seattle to Madrid, returning Tue, Oct 14, priced at $586 found 3 hours ago
British Airways
Wed, Oct 15 - Thu, Nov 27
SEA
Seattle
MAD
Madrid
$586 Roundtrip, just found
$586
Roundtrip
just found
Select British Airways flight, departing Wed, Oct 15 from Seattle to Madrid, returning Thu, Nov 27, priced at $586 just found
American Airlines
Mon, Oct 6 - Tue, Oct 21
SEA
Seattle
MAD
Madrid
$586 Roundtrip, just found
$586
Roundtrip
just found
Select American Airlines flight, departing Mon, Oct 6 from Seattle to Madrid, returning Tue, Oct 21, priced at $586 just found
Iberia
Sun, Oct 5 - Tue, Oct 21
SEA
Seattle
MAD
Madrid
$587 Roundtrip, just found
$587
Roundtrip
just found
Select Iberia flight, departing Sun, Oct 5 from Seattle to Madrid, returning Tue, Oct 21, priced at $587 just found
Virgin Atlantic
Tue, Nov 18 - Tue, Nov 25
SEA
Seattle
MAD
Madrid
$587 Roundtrip, found 1 day ago
$587
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Tue, Nov 18 from Seattle to Madrid, returning Tue, Nov 25, priced at $587 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Madrid (MAD)

November is typically the cheapest month to fly

From $435 - $1,290 per traveler.

Graph displaying average flight prices per month

Alternative airports near Madrid

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Adolfo Suarez Madrid-Barajas MAD. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $1,090
MAD
Adolfo Suarez Madrid-Barajas
CheapestClosest
Average driving time to city center20 min
Flights from $1,090
Flights from Seattle (SEA) to Madrid (MAD)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Adolfo Suárez Madrid-Barajas
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, Alaska Airlines, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$498
Distance
5296 mi

Seattle to Madrid Flights

The cheapest times to fly from Seattle to Madrid

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Madrid are during the month of November. You can find some of the cheapest flights from Seattle to Madrid with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Madrid

Sunday is one of the best days to book for cheap flights from Seattle to Madrid: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Madrid

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Madrid in 2025. You can also book with separate airlines for your outbound and return journeys, from $389 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Madrid flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Madrid airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD) cost?
Discover the latest flight deals from SEA to MAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to MAD?
The cheapest flights from SEA to MAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to MAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to MAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to MAD?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
To touch down at Adolfo Suarez Madrid-Barajas Airport (MAD) without delays, opt for a flight that leaves Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD) last-minute?
Booking your plane ticket from SEA to MAD shortly before your trip is generally more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a SEA to MAD flight and hotel package?
Booking a SEA to MAD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
Usually, it's possible to reschedule or cancel your SEA to MAD flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.