$370 Cheap Flights from Madrid (MAD) to Seattle (SEA)

View $370 flight on Tue, Oct 21, 2025Opens in a new window

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

Cheap Flights from Madrid to Seattle (MAD-SEA)

Prices were available within the past 7 days and start at $370 for one-way flights and $440 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Europa
Sat, Feb 14 - Sat, Feb 21
MAD
Madrid
SEA
Seattle
$440 Roundtrip, found 3 days ago
$440
Roundtrip
found 3 days ago
Select Air Europa flight, departing Sat, Feb 14 from Madrid to Seattle, returning Sat, Feb 21, priced at $440 found 3 days ago
Air Europa
Thu, Sep 18 - Mon, Sep 22
MAD
Madrid
SEA
Seattle
$470 Roundtrip, found 23 hours ago
$470
Roundtrip
found 23 hours ago
Select Air Europa flight, departing Thu, Sep 18 from Madrid to Seattle, returning Mon, Sep 22, priced at $470 found 23 hours ago
Aer Lingus
Wed, Oct 22 - Wed, Nov 5
MAD
Madrid
SEA
Seattle
$629 Roundtrip, found 5 days ago
$629
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Wed, Oct 22 from Madrid to Seattle, returning Wed, Nov 5, priced at $629 found 5 days ago
Iberia
Thu, Jan 15 - Tue, Jan 20
MAD
Madrid
SEA
Seattle
$630 Roundtrip, found 1 day ago
$630
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Jan 15 from Madrid to Seattle, returning Tue, Jan 20, priced at $630 found 1 day ago
British Airways
Mon, Jan 19 - Thu, Feb 26
MAD
Madrid
SEA
Seattle
$632 Roundtrip, found 1 day ago
$632
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Jan 19 from Madrid to Seattle, returning Thu, Feb 26, priced at $632 found 1 day ago
Scandinavian Airlines
Thu, Oct 9 - Sun, Oct 19
MAD
Madrid
SEA
Seattle
$681 Roundtrip, found 6 days ago
$681
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Thu, Oct 9 from Madrid to Seattle, returning Sun, Oct 19, priced at $681 found 6 days ago
American Airlines
Wed, Mar 4 - Tue, Mar 17
MAD
Madrid
SEA
Seattle
$687 Roundtrip, found 1 hour ago
$687
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Mar 4 from Madrid to Seattle, returning Tue, Mar 17, priced at $687 found 1 hour ago
JetBlue Airways
Wed, Oct 15 - Wed, Oct 22
MAD
Madrid
SEA
Seattle
$721 Roundtrip, found 3 days ago
$721
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Wed, Oct 15 from Madrid to Seattle, returning Wed, Oct 22, priced at $721 found 3 days ago
Air Canada
Thu, Jan 15 - Tue, Jan 20
MAD
Madrid
SEA
Seattle
$727 Roundtrip, found 1 day ago
$727
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Jan 15 from Madrid to Seattle, returning Tue, Jan 20, priced at $727 found 1 day ago
Lufthansa
Thu, Feb 5 - Sat, Feb 21
MAD
Madrid
SEA
Seattle
$736 Roundtrip, found 14 hours ago
$736
Roundtrip
found 14 hours ago
Select Lufthansa flight, departing Thu, Feb 5 from Madrid to Seattle, returning Sat, Feb 21, priced at $736 found 14 hours ago

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

May is typically the cheapest month to fly

From $479 - $1,038 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $741
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $741
Flights from Madrid (MAD) to Seattle (SEA)
Origin airport
Adolfo Suárez Madrid-Barajas
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$440
Distance
5296 mi

Madrid to Seattle Flights

The cheapest times to fly from Madrid to Seattle

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 Madrid to Seattle are during the month of February. You can find some of the cheapest flights from Madrid to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Madrid to Seattle

Sunday is one of the best days to book for cheap flights from Madrid to Seattle: 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 Madrid to Seattle

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 Madrid to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $370 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 Madrid to Seattle 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 Madrid to Seattle 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 Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA) cost?
Get a cheap one-way flight from $370 or cheap return flight from $440 from Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA)?
February is the cheapest month to fly from MAD to SEA. Traveling during quieter months is often the key to finding better fares.
What is the cheapest airline that flies from Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline that'll fly you from MAD to SEA, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA)?
You'll need to take a flight with a layover if you're traveling from Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from MAD to SEA?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, airline 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 Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA)?
Book a flight from Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA) that takes off before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**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 Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from MAD to SEA are typically more expensive. For the lowest rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a MAD to SEA flight and hotel package?
Securing a MAD to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our extensive range of stays 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 Adolfo Suarez Madrid-Barajas Airport (MAD) to Seattle - Tacoma Intl. Airport (SEA)?
It's generally possible to reschedule or cancel your MAD to SEA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed 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.