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 connection time from Seattle to Madrid?

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

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?

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

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.

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 39% 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 12 as of July 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.

$189 Cheap Flights from Seattle to Madrid in 2026

Q: 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 $812 to $1,374. The lowest price recently found on this route was $639.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Madrid

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 pm - 9:55 pm

SEA

MAD

18h 45m

1 stop

7:00 am - 4:00 pm

MAD

SEA

18h 00m

1 stop

$639Multiple Airlines

Mon, Oct 12 - Thu, Oct 22

6:10 pm - 9:55 pm

SEA

MAD

18h 45m

1 stop

7:00 am - 3:40 pm

MAD

SEA

17h 40m

1 stop

$672Multiple Airlines

Mon, Sep 28 - Wed, Oct 21

5:40 pm - 9:55 pm

SEA

MAD

19h 15m

1 stop

7:00 am - 3:40 pm

MAD

SEA

17h 40m

1 stop

$683Multiple Airlines

Sun, Sep 27 - Tue, Oct 20

5:40 pm - 9:55 pm

SEA

MAD

19h 15m

1 stop

7:00 am - 3:40 pm

MAD

SEA

17h 40m

1 stop

$694Multiple Airlines

Sun, Sep 27 - Tue, Oct 20

8:00 am - 9:55 am

SEA

MAD

16h 55m

2 stops

10:35 am - 6:25 pm

MAD

SEA

16h 50m

1 stop

$696Multiple Airlines

Tue, Oct 6 - Wed, Oct 14

7:48 am - 9:55 am

SEA

MAD

17h 07m

2 stops

10:40 am - 6:20 pm

MAD

SEA

16h 40m

1 stop

$697Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

8:00 am - 9:55 am

SEA

MAD

16h 55m

2 stops

12:00 pm - 12:30 pm

MAD

SEA

32h 30m

1 stop

$698Multiple Airlines

Wed, Oct 21 - Mon, Oct 26

8:00 am - 9:55 am

SEA

MAD

16h 55m

2 stops

10:40 am - 5:10 pm

MAD

SEA

15h 30m

1 stop

$700Multiple Airlines

Tue, Oct 6 - Fri, Oct 16

5:40 pm - 9:55 pm

SEA

MAD

19h 15m

1 stop

7:00 am - 3:40 pm

MAD

SEA

17h 40m

1 stop

$704Multiple Airlines

Sun, Sep 27 - Tue, Oct 20

7:55 am - 9:55 am

SEA

MAD

17h 00m

2 stops

12:00 pm - 8:37 pm

MAD

SEA

17h 37m

1 stop

$705Multiple Airlines

Mon, Nov 23 - Thu, Dec 3

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British Airways flights from Seattle to Madrid

Our best British Airways deals on Seattle to Madrid flight tickets

British Airways

Oct 6

SEA8:20 pmSeattle/Tacoma Intl

14h 45m

1 stop

MAD8:05 pmMadrid Barajas

Oct 14

MAD11:45 amMadrid Barajas

17h 30m

1 stop

SEA8:15 pmSeattle/Tacoma Intl

$721

British Airways

Sep 23

SEA1:30 pmSeattle/Tacoma Intl

19h 05m

1 stop

MAD5:35 pmMadrid Barajas

Nov 18

MAD12:00 pmMadrid Barajas

13h 50m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

$733

British Airways

Sep 29

SEA1:30 pmSeattle/Tacoma Intl

17h 20m

1 stop

MAD3:50 pmMadrid Barajas

Oct 20

MAD9:00 pmMadrid Barajas

23h 35m

1 stop

SEA11:35 amSeattle/Tacoma Intl

$734

Delta flights from Seattle to Madrid

Our best Delta deals on Seattle to Madrid flight tickets

Delta

Oct 7

SEA6:45 pmSeattle/Tacoma Intl

15h 30m

1 stop

MAD7:15 pmMadrid Barajas

Oct 13

MAD10:25 amMadrid Barajas

34h 27m

1 stop

SEA11:52 amSeattle/Tacoma Intl

$741

Delta

Nov 3

SEA6:00 amSeattle/Tacoma Intl

20h 30m

2 stops

MAD11:30 amMadrid Barajas

Nov 17

MAD6:05 amMadrid Barajas

14h 42m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$745

Delta

Nov 8

SEA11:59 pmSeattle/Tacoma Intl

23h 01m

2 stops

MAD8:00 amMadrid Barajas

Nov 16

MAD1:05 pmMadrid Barajas

31h 42m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$746

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 10/12

6:10 pm-9:55 pm

1 stop18h 45m

Madrid Barajas

Thu 10/22

7:00 am-4:00 pm

1 stop18h 00m

$639

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 9/28

6:10 pm-9:55 pm

1 stop18h 45m

Madrid Barajas

Wed 10/21

7:00 am-3:40 pm

1 stop17h 40m

$672

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Sun 9/27

5:40 pm-9:55 pm

1 stop19h 15m

Madrid Barajas

Tue 10/20

7:00 am-3:40 pm

1 stop17h 40m

$683

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Sun 9/27

5:40 pm-9:55 pm

1 stop19h 15m

Madrid Barajas

Tue 10/20

7:00 am-3:40 pm

1 stop17h 40m

$694

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 10/6

8:00 am-9:55 am

2 stops16h 55m

Madrid Barajas

Wed 10/14

10:35 am-6:25 pm

1 stop16h 50m

$696

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Wed 11/11

7:48 am-9:55 am

2 stops17h 07m

Madrid Barajas

Wed 11/18

10:40 am-6:20 pm

1 stop16h 40m

$697

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Wed 10/21

8:00 am-9:55 am

2 stops16h 55m

Madrid Barajas

Mon 10/26

12:00 pm-12:30 pm

1 stop32h 30m

$698

Quickest round-trip

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Tue 10/6

8:00 am-9:55 am

2 stops16h 55m

Madrid Barajas

Fri 10/16

10:40 am-5:10 pm

1 stop15h 30m

$700

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Sun 9/27

5:40 pm-9:55 pm

1 stop19h 15m

Madrid Barajas

Tue 10/20

7:00 am-3:40 pm

1 stop17h 40m

$704

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 11/23

7:55 am-9:55 am

2 stops17h 00m

Madrid Barajas

Thu 12/3

12:00 pm-8:37 pm

1 stop17h 37m

$705

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?

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 $835 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 $671 on momondo.

How have Seattle to Madrid flight prices changed over time?

As of July 2026, prices for Seattle to Madrid flights are approximately 46% 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	13h 10m
Direct flights	None

The fastest flight from Seattle to Madrid takes 13h 10m

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 13h 10m.
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 12 as of July 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 22%, 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
JetBlue	PriceFrom $123	Free Cancellation	Rating 7.1 3,012 reviews	Search JetBlue flights
Iberia	PriceFrom $439	Free Cancellation	Rating 7.0 3,257 reviews	Search Iberia flights
United Airlines	PriceFrom $476	Free Cancellation	Rating 7.4 10,006 reviews	Search United Airlines flights
British Airways	PriceFrom $479	Free Cancellation	Rating 6.7 8,122 reviews	Search British Airways flights
Air France	PriceFrom $486	Free Cancellation	Rating 7.5 1,626 reviews	Search Air France flights
Delta	PriceFrom $487	Free Cancellation	Rating 7.8 8,476 reviews	Search Delta flights
American Airlines	PriceFrom $489	Free Cancellation	Rating 7.1 11,829 reviews	Search American Airlines flights
Lufthansa	PriceFrom $498	Free Cancellation	Rating 6.8 8,143 reviews	Search Lufthansa flights
Air Canada	PriceFrom $511	Free Cancellation	Rating 7.1 11,352 reviews	Search Air Canada flights
Aer Lingus	PriceFrom $538	Free Cancellation	Rating 7.3 1,671 reviews	Search Aer Lingus flights

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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.