Which airport is the most popular layover for flights between Seattle and Madrid?

Munich (MUC) was the most common stop: 19% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Madrid Barajas?

Delta and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Madrid Barajas

Which layover airport offers the lowest fares from Seattle to Madrid?

Flights via Paris (CDG) offer the lowest average round-trip price of $531.

Which layover airport has the shortest travel time from Seattle to Madrid?

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 13h 49m.

Which layover airport has the shortest connection time from Seattle to Madrid?

Boston (BOS) has the shortest average layover time for this route: 1h 38m.

What airlines fly to Madrid?

British Airways, Delta and Lufthansa are the top three most popular airlines that fly to Madrid from Seattle according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Madrid. Keep in mind that there are 12 different airlines that fly to Madrid on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport is 11 as of August 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Madrid Barajas Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Madrid Barajas Airport.

What documentation or ID do you need to fly to Madrid Barajas Airport?

The travel and health documents you'll need for your trip to Madrid Barajas Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Madrid Barajas Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$187 Cheap Flights from Seattle to Madrid in 2026

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Find the cheapest flights from Seattle to Madrid

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:21 am - 9:55 am

SEA

MAD

16h 34m

2 stops

7:40 am - 7:43 pm

MAD

SEA

21h 03m

2 stops

$540Multiple Airlines

Tue, Jan 12 - Tue, Jan 26

8:21 am - 9:55 am

SEA

MAD

16h 34m

2 stops

7:40 am - 7:43 pm

MAD

SEA

21h 03m

2 stops

$542Multiple Airlines

Tue, Jan 12 - Tue, Jan 26

7:15 pm - 6:50 am

SEA

MAD

26h 35m

2 stops

1:30 pm - 9:04 pm

MAD

SEA

16h 34m

1 stop

$699Air Canada

Mon, Sep 21 - Tue, Oct 6

5:50 am - 8:50 am

SEA

MAD

18h 00m

2 stops

1:30 pm - 10:42 pm

MAD

SEA

18h 12m

2 stops

$700Air Canada

Mon, Sep 21 - Tue, Oct 6

1:30 pm - 12:50 pm

SEA

MAD

14h 20m

1 stop

11:05 am - 8:03 pm

MAD

SEA

17h 58m

1 stop

$720British Airways

Tue, Nov 10 - Tue, Nov 17

1:30 pm - 12:40 pm

SEA

MAD

14h 10m

1 stop

3:25 pm - 10:59 pm

MAD

SEA

16h 34m

1 stop

$720British Airways

Tue, Oct 6 - Tue, Oct 13

7:45 pm - 4:55 pm

SEA

MAD

13h 10m

1 stop

12:00 pm - 12:35 am

MAD

SEA

21h 35m

1 stop

$720Iberia

Mon, Oct 26 - Wed, Nov 11

6:45 pm - 7:20 pm

SEA

MAD

15h 35m

1 stop

12:00 pm - 8:20 pm

MAD

SEA

17h 20m

1 stop

$720Iberia

Tue, Nov 3 - Tue, Nov 17

11:14 pm - 8:05 am

SEA

MAD

23h 51m

1 stop

12:45 pm - 11:27 am

MAD

SEA

31h 42m

2 stops

$730United Airlines

Mon, Sep 28 - Wed, Oct 21

8:25 am - 8:05 am

SEA

MAD

14h 40m

1 stop

12:45 pm - 6:52 pm

MAD

SEA

39h 07m

2 stops

$730United Airlines

Mon, Sep 28 - Wed, Oct 21

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Delta flights from Seattle to Madrid

Our best Delta deals on Seattle to Madrid flight tickets

Delta

Sep 21

SEA7:16 amSeattle/Tacoma Intl

14h 04m

1 stop

MAD6:20 amMadrid Barajas

Oct 5

MAD1:05 pmMadrid Barajas

31h 47m

1 stop

SEA11:52 amSeattle/Tacoma Intl

$736

Delta

Jan 11

SEA3:25 pmSeattle/Tacoma Intl

14h 55m

1 stop

MAD3:20 pmMadrid Barajas

Jan 26

MAD6:05 amMadrid Barajas

14h 45m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$741

Delta

Jan 11

SEA7:20 amSeattle/Tacoma Intl

23h 00m

2 stops

MAD3:20 pmMadrid Barajas

Jan 28

MAD6:05 amMadrid Barajas

14h 45m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$746

United Airlines flights from Seattle to Madrid

Our best United Airlines deals on Seattle to Madrid flight tickets

United Airlines

Oct 6

SEA7:00 amSeattle/Tacoma Intl

17h 00m

1 stop

MAD9:00 amMadrid Barajas

Oct 27

MAD12:25 pmMadrid Barajas

35h 07m

2 stops

SEA3:32 pmSeattle/Tacoma Intl

$730

United Airlines

Jan 12

SEA5:07 amSeattle/Tacoma Intl

17h 53m

2 stops

MAD8:00 amMadrid Barajas

Jan 26

MAD1:25 pmMadrid Barajas

38h 34m

2 stops

SEA6:59 pmSeattle/Tacoma Intl

$733

United Airlines

Jan 12

SEA5:07 amSeattle/Tacoma Intl

17h 53m

2 stops

MAD8:00 amMadrid Barajas

Jan 26

MAD1:25 pmMadrid Barajas

38h 34m

2 stops

SEA6:59 pmSeattle/Tacoma Intl

$734

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 1/12

8:21 am-9:55 am

2 stops16h 34m

Madrid Barajas

Tue 1/26

7:40 am-7:43 pm

2 stops21h 03m

$540

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 1/12

8:21 am-9:55 am

2 stops16h 34m

Madrid Barajas

Tue 1/26

7:40 am-7:43 pm

2 stops21h 03m

$542

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 9/21

7:15 pm-6:50 am

2 stops26h 35m

Madrid Barajas

Tue 10/6

1:30 pm-9:04 pm

1 stop16h 34m

$699

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 9/21

5:50 am-8:50 am

2 stops18h 00m

Madrid Barajas

Tue 10/6

1:30 pm-10:42 pm

2 stops18h 12m

$700

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 11/10

1:30 pm-12:50 pm

1 stop14h 20m

Madrid Barajas

Tue 11/17

11:05 am-8:03 pm

1 stop17h 58m

$720

Quickest round-trip

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 10/6

1:30 pm-12:40 pm

1 stop14h 10m

Madrid Barajas

Tue 10/13

3:25 pm-10:59 pm

1 stop16h 34m

$720

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 10/26

7:45 pm-4:55 pm

1 stop13h 10m

Madrid Barajas

Wed 11/11

12:00 pm-12:35 am

1 stop21h 35m

$720

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 11/3

6:45 pm-7:20 pm

1 stop15h 35m

Madrid Barajas

Tue 11/17

12:00 pm-8:20 pm

1 stop17h 20m

$720

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 9/28

11:14 pm-8:05 am

1 stop23h 51m

Madrid Barajas

Wed 10/21

12:45 pm-11:27 am

2 stops31h 42m

$730

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 9/28

8:25 am-8:05 am

1 stop14h 40m

Madrid Barajas

Wed 10/21

12:45 pm-6:52 pm

2 stops39h 07m

$730

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Madrid

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Seattle and Madrid?

Prices are currently low for flights on this route.

Typical prices usually range from $718 to $1,150.
The lowest price recently found on this route was $540.

What is the cheapest month to fly to Madrid?

The month of January is, on average, the cheapest month to fly to Madrid from Seattle, with most prices found around $492. If you don’t want to visit Madrid in January, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $596.

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

You are more likely to see cheaper flights to Madrid from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $837 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from Seattle for as low as $720 on momondo.

How have Seattle to Madrid flight prices changed over time?

As of August 2026, prices for Seattle to Madrid flights are approximately 49% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Madrid

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Madrid according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Madrid (SEA to MAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Madrid

Fastest flight time	14h 45m
Direct flights	None

The fastest flight from Seattle to Madrid takes 14h 45m

There are no direct flights from Seattle to Madrid. There are no popular flight routes from Seattle to Madrid.

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Frequently asked questions about flying from Seattle to Madrid

How far is Seattle/Tacoma Intl to Madrid Barajas by plane?
The straight-line distance from Seattle/Tacoma Intl to Madrid Barajas is 5284.3 mi. A reasonable flight in good conditions will take 14h 45m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Madrid Barajas Airport is 11 as of August 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Madrid Barajas Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Madrid Barajas Airport.
What documentation or ID do you need to fly to Madrid Barajas Airport?
The travel and health documents you'll need for your trip to Madrid Barajas Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Madrid Barajas Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Madrid?
momondo data reveals that the most frequently booked airline on the route from Seattle to Madrid is British Airways, representing 27% of all bookings. The subsequent popular airlines are Delta at 23%, Lufthansa at 14%, and Air France at 8%.

Best airlines flying from Seattle to Madrid

Compare and see reviews for airlines that fly from Seattle to Madrid with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $439	Free Cancellation	Rating 7.0 3,267 reviews	Search Iberia flights
United Airlines	PriceFrom $476	Free Cancellation	Rating 7.4 10,059 reviews	Search United Airlines flights
British Airways	PriceFrom $479	Free Cancellation	Rating 6.7 8,143 reviews	Search British Airways flights
Air France	PriceFrom $486	Free Cancellation	Rating 7.5 1,633 reviews	Search Air France flights
Delta	PriceFrom $487	Free Cancellation	Rating 7.8 8,488 reviews	Search Delta flights
American Airlines	PriceFrom $489	Free Cancellation	Rating 7.1 11,844 reviews	Search American Airlines flights
Lufthansa	PriceFrom $498	Free Cancellation	Rating 6.8 8,173 reviews	Search Lufthansa flights
Air Canada	PriceFrom $511	Free Cancellation	Rating 7.1 11,419 reviews	Search Air Canada flights
Aer Lingus	PriceFrom $538	Free Cancellation	Rating 7.3 1,685 reviews	Search Aer Lingus flights
KLM	PriceFrom $593	Free Cancellation	Rating 7.8 1,552 reviews	Search KLM flights

Toledo

Segovia

Fuenlabrada

Getafe

Cuenca

Guadalajara

San Lorenzo de El Escorial

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Madrid?

Finding the right flight to Madrid from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Madrid quick and easy, saving you time and money.

Can I find flights from Seattle to Madrid with flexible booking policies on momondo?

momondo does allow users to show only those flights to Madrid from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Madrid?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Madrid.

I’m not ready to book a flight from Seattle to Madrid right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Madrid flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Seattle to Madrid from $187

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Madrid departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Seattle to Madrid

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How to get the cheapest flight ticket from Seattle to Madrid

What is the typical price of a round-trip flight between Seattle and Madrid?

What is the cheapest month to fly to Madrid?

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

How have Seattle to Madrid flight prices changed over time?

What is the cheapest airline that flies from Seattle/Tacoma Intl to Madrid Barajas?

What airlines fly to Madrid?

Which airport is the most popular layover for flights between Seattle and Madrid?

Which layover airport offers the lowest fares from Seattle to Madrid?

Which layover airport has the shortest travel time from Seattle to Madrid?

Which layover airport has the shortest connection time from Seattle to Madrid?

When to book flights from Seattle to Madrid

Cheap Seattle to Madrid (SEA to MAD) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Madrid

Best airlines flying from Seattle to Madrid

Compare and see reviews for airlines that fly from Seattle to Madrid with momondo

Traveling to a place near Madrid?

Why use momondo?

An easier way to manage your Madrid trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Spain

Fly your favorite airline to Madrid

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Cabin classes currently available on flights to Madrid

List of cabin classes available on flights landing in Madrid. Availability may vary depending on flight origin and airline.

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