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Cheap flights from Madrid, Spain to Seattle from £305

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SEA
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Madrid to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Madrid to Seattle
Explore the most affordable flight options available from Madrid to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Wed 18/212:40
MAD
-
SEA
1 stop17h 37m
British Airways
Wed 25/218:50
SEA
-
MAD
1 stop14h 40m
British Airways
Deal found 21/1£473
Fri 20/212:40
MAD
-
SEA
1 stop17h 37m
British Airways
Fri 27/218:50
SEA
-
MAD
1 stop14h 45m
British Airways
Deal found 21/1£499
Thu 16/406:05
MAD
-
SEA
1 stop15h 15m
United Airlines
Sun 19/408:00
SEA
-
MAD
1 stop15h 05m
United Airlines
Deal found 19/1£509
Thu 5/206:00
MAD
-
SEA
2 stops24h 12m
United Airlines
Wed 18/205:00
SEA
-
MAD
2 stops19h 15m
United Airlines
Deal found 20/1£514
Sat 12/910:05
MAD
-
SEA
1 stop13h 30m
SWISS
Tue 6/1011:00
SEA
-
MAD
2 stops22h 40m
SWISS
Deal found 20/1£515
Sat 7/306:00
MAD
-
SEA
1 stop15h 10m
United Airlines
Sat 14/323:59
SEA
-
MAD
2 stops32h 01m
United Airlines
Deal found 20/1£516
Wed 18/205:55
MAD
-
SEA
3 stops24h 06m
United Airlines
Wed 25/207:00
SEA
-
MAD
2 stops17h 15m
United Airlines
Deal found 21/1£517
Fri 6/306:00
MAD
-
SEA
2 stops21h 32m
United Airlines
Fri 13/309:20
SEA
-
MAD
2 stops22h 50m
United Airlines
Deal found 20/1£517
Mon 23/206:00
MAD
-
SEA
2 stops24h 01m
United Airlines
Sun 8/305:00
SEA
-
MAD
2 stops18h 00m
United Airlines
Deal found 20/1£519
Fri 20/208:35
MAD
-
SEA
2 stops21h 21m
Lufthansa
Fri 27/215:10
SEA
-
MAD
1 stop23h 25m
Lufthansa
Deal found 21/1£520

Find flight deals from Madrid to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2026.

Round-trip from

£473

One-way from

£305

Popular in

August

Cheapest in

February

Average price

£617
British Airways
  • British Airways
  • 18/2-25/2
  • 2 total stops
  • 32h 17m total
  • Madrid to Seattle
Search Deals
WestJet
  • WestJet
  • 17/5
  • 2 total stops
  • 34h 28m total
  • Madrid to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Madrid to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from Madrid to Seattle that are best for you.

Fly from

Madrid

Fly to

Seattle

Route

Depart

Return

Price

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Wed 18/2

12:40-21:17

1 stop17h 37m

Seattle/Tacoma Intl

Wed 25/2

18:50-18:30

1 stop14h 40m

£473

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Fri 20/2

12:40-21:17

1 stop17h 37m

Seattle/Tacoma Intl

Fri 27/2

18:50-18:35

1 stop14h 45m

£499

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 16/4

06:05-12:20

1 stop15h 15m

Seattle/Tacoma Intl

Sun 19/4

07:00-09:00

2 stops17h 00m

£509

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 9/5

05:55-23:29

2 stops26h 34m

Seattle/Tacoma Intl

Sun 24/5

22:10-08:05

1 stop24h 55m

£514

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 14/2

08:25-21:01

2 stops21h 36m

Seattle/Tacoma Intl

Mon 2/3

05:00-09:15

2 stops19h 15m

£514

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 5/2

06:00-21:12

2 stops24h 12m

Seattle/Tacoma Intl

Wed 18/2

05:00-09:15

2 stops19h 15m

£514

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 7/3

06:00-12:10

1 stop15h 10m

Seattle/Tacoma Intl

Sat 14/3

23:59-16:00

2 stops32h 01m

£516

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Wed 18/2

05:55-21:01

3 stops24h 06m

Seattle/Tacoma Intl

Wed 25/2

07:00-09:15

2 stops17h 15m

£517

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sun 17/5

11:40-13:08

2 stops34h 28m

£305

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Mon 23/3

18:05-12:30

1 stop26h 25m

£398

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 16 results
1
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Best time to book a flight from Madrid to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Madrid with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Madrid to Seattle

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

Use this chart to determine the optimal time to book a return flight from Madrid to Seattle. Price data was last updated on 16 January 2026.

Booking 25 days in advance of your planned departure date is, on average, the best time to get cheap flights from Madrid to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Madrid to Seattle?

Currently, February is the cheapest month in which you can book a flight from Madrid to Seattle (average of £443). Flying from Madrid to Seattle in July is currently the most expensive (average of £644). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Madrid to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Madrid to Seattle?

    Airlines like British Airways and United Airlines fly from Madrid to Seattle in about 15h 15m. The time it takes to get you to your destination can typically vary by up to 2h 22m. Airlines will cover a distance of 5292 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Madrid to Seattle that include hotel bookings?

    Yes. In addition to deals on Madrid to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Madrid to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Madrid to Seattle.

  • Can I find deals for business class flights from Madrid to Seattle?

    Yes. Cheapflights offers flight deals from Madrid to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Madrid to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Madrid to Seattle (average of £443). Flying from Madrid to Seattle in July is currently the most expensive (average of £644). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Federal Way
SeaTac

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How does Cheapflights help users find flights from Madrid to Seattle?

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Why should you use Cheapflights to find cheap flight tickets from Madrid to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Madrid to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Madrid to Seattle with no change fees?

Yes, we can. To see specific flights from Madrid to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Madrid to Seattle become cheaper?

Of course! You can now track prices for flights from Madrid to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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