$404 Cheap Flights from Seattle (SEA) to Madrid (MAD)

View $404 flight on Wed, Jul 30, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Seattle to Madrid (SEA-MAD)

Prices were available within the past 7 days and start at $404 for one-way flights and $470 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Condor
Mon, Oct 20 - Thu, Oct 30
SEA
Seattle
MAD
Madrid
$470 Roundtrip, found 1 day ago
$470
Roundtrip
found 1 day ago
Select Condor flight, departing Mon, Oct 20 from Seattle to Madrid, returning Thu, Oct 30, priced at $470 found 1 day ago
Scandinavian Airlines
Wed, Aug 27 - Sun, Sep 7
SEA
Seattle
MAD
Madrid
$476 Roundtrip, found 17 hours ago
$476
Roundtrip
found 17 hours ago
Select Scandinavian Airlines flight, departing Wed, Aug 27 from Seattle to Madrid, returning Sun, Sep 7, priced at $476 found 17 hours ago
Brussels Airlines
Tue, Sep 23 - Tue, Oct 21
SEA
Seattle
MAD
Madrid
$602 Roundtrip, found 4 days ago
$602
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Tue, Sep 23 from Seattle to Madrid, returning Tue, Oct 21, priced at $602 found 4 days ago
United
Mon, Oct 13 - Fri, Oct 24
SEA
Seattle
MAD
Madrid
$612 Roundtrip, found 2 days ago
$612
Roundtrip
found 2 days ago
Select United flight, departing Mon, Oct 13 from Seattle to Madrid, returning Fri, Oct 24, priced at $612 found 2 days ago
Air Canada
Tue, Oct 7 - Tue, Oct 21
SEA
Seattle
MAD
Madrid
$612 Roundtrip, found 1 day ago
$612
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 7 from Seattle to Madrid, returning Tue, Oct 21, priced at $612 found 1 day ago
Aer Lingus
Wed, Oct 29 - Fri, Nov 7
SEA
Seattle
MAD
Madrid
$615 Roundtrip, found 6 days ago
$615
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Wed, Oct 29 from Seattle to Madrid, returning Fri, Nov 7, priced at $615 found 6 days ago
Iberia
Sun, Mar 1 - Wed, Mar 11
SEA
Seattle
MAD
Madrid
$626 Roundtrip, found 1 hour ago
$626
Roundtrip
found 1 hour ago
Select Iberia flight, departing Sun, Mar 1 from Seattle to Madrid, returning Wed, Mar 11, priced at $626 found 1 hour ago
British Airways
Tue, Oct 7 - Fri, Oct 17
SEA
Seattle
MAD
Madrid
$626 Roundtrip, found 4 hours ago
$626
Roundtrip
found 4 hours ago
Select British Airways flight, departing Tue, Oct 7 from Seattle to Madrid, returning Fri, Oct 17, priced at $626 found 4 hours ago
Delta
Tue, Oct 14 - Wed, Oct 29
SEA
Seattle
MAD
Madrid
$626 Roundtrip, found 2 days ago
$626
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 14 from Seattle to Madrid, returning Wed, Oct 29, priced at $626 found 2 days ago
Virgin Atlantic
Wed, Oct 22 - Tue, Oct 28
SEA
Seattle
MAD
Madrid
$627 Roundtrip, found 2 hours ago
$627
Roundtrip
found 2 hours ago
Select Virgin Atlantic flight, departing Wed, Oct 22 from Seattle to Madrid, returning Tue, Oct 28, priced at $627 found 2 hours ago
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
$470
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 October. 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 $404 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

Is it cheaper to buy a plane ticket from SEA to MAD last minute?
Booking your flight from Sea-Tac Airport to MAD at the last minute could save you cash if you’re lucky to find a good deal. However, tickets usually don’t drop in price closer to the departure date. If you procrastinate, flights could also be booked up or the best seats taken (don’t get stuck in the middle!). If you don’t want to hedge your bets, book well in advance of when you want to leave. In fact, Expedia has some of the biggest deals up to 12 months in advance. If your preferred airline hasn’t released tickets yet, check back regularly as offers are constantly updated on Expedia.
What airports do you fly into for Madrid from Seattle?
There are two — Adolfo Suarez Madrid-Barajas Airport (MAD) and Madrid-Torrejon Airport (TOJ). Both are excellent options for those jetting from Seattle to Madrid. If you opt for Adolfo Suarez Madrid-Barajas Airport (MAD), you’ll touch down roughly 8 mi northeast of the center of Madrid. Once you’ve checked in to your hotel room, it’s time to experience some of the city’s best sights. Plaza Mayor and Prado Museum are both popular with visitors.
Can I change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Madrid--Barajas Airport?
It’s so easy to make amendments to your SEA to Adolfo Suarez Madrid-Barajas Airport (MAD) journey yourself. Access your itinerary via the Expedia Trips portal and click on “change flight.” Look around for new flights and secure the one that works with your new plans. You’ll see an estimate of any flight change costs. You can also head to our Customer Service portal to chat to our Virtual Agent and get answers to your questions.

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*Available to One Key members.