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Cheap flights from Madrid, Spain to Seattle from £393

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SEA
24 Mar — 31 Mar1
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 February 2026.

Mon 13/407:05
MAD
-
SEA
1 stop18h 05m
Multiple Airlines
Sun 26/417:40
SEA
-
MAD
1 stop19h 15m
Multiple Airlines
Deal found 22/2£542
Fri 6/316:50
MAD
-
SEA
1 stop27h 45m
Multiple Airlines
Sun 29/318:40
SEA
-
MAD
1 stop15h 35m
Multiple Airlines
Deal found 20/2£570
Mon 9/306:00
MAD
-
SEA
1 stop14h 35m
Delta
Wed 25/311:25
SEA
-
MAD
2 stops16h 05m
Delta
Deal found 19/2£573
Sun 8/313:05
MAD
-
SEA
1 stop31h 30m
KLM
Wed 8/413:45
SEA
-
MAD
1 stop14h 55m
KLM
Deal found 20/2£574
Fri 6/306:00
MAD
-
SEA
2 stops20h 00m
Delta
Wed 8/407:20
SEA
-
MAD
2 stops19h 00m
Delta
Deal found 20/2£575
Sat 7/307:05
MAD
-
SEA
1 stop17h 35m
Multiple Airlines
Thu 9/418:05
SEA
-
MAD
1 stop18h 50m
Multiple Airlines
Deal found 20/2£577
Sun 8/306:00
MAD
-
SEA
2 stops22h 55m
Delta
Fri 10/416:55
SEA
-
MAD
2 stops17h 40m
Delta
Deal found 20/2£579
Fri 6/311:00
MAD
-
SEA
2 stops20h 05m
Delta
Sat 28/311:25
SEA
-
MAD
2 stops20h 00m
Delta
Deal found 20/2£579
Fri 6/306:00
MAD
-
SEA
1 stop14h 35m
KLM
Thu 9/413:45
SEA
-
MAD
1 stop14h 55m
KLM
Deal found 20/2£587
Mon 9/306:00
MAD
-
SEA
1 stop15h 10m
United Airlines
Tue 31/308:00
SEA
-
MAD
1 stop15h 05m
United Airlines
Deal found 20/2£593
Thu 19/306:00
MAD
-
SEA
1 stop14h 35m
Multiple Airlines
Sun 26/418:40
SEA
-
MAD
1 stop19h 35m
Multiple Airlines
Deal found 20/2£594
Mon 9/306:00
MAD
-
SEA
2 stops35h 49m
United Airlines
Thu 9/407:00
SEA
-
MAD
2 stops16h 05m
United Airlines
Deal found 20/2£596

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 February 2026.

Round-trip from

£542

One-way from

£393

Popular in

December

Cheapest in

May

Average price

£615
13/4-26/4
  • 13/4-26/4
  • 2 total stops
  • 37h 20m total
  • Madrid to Seattle
Search Deals
8/5
  • 8/5
  • 1 total stop
  • 17h 55m total
  • Madrid to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 February 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

Thu 19/3

06:00-12:35

1 stop14h 35m

Seattle/Tacoma Intl

Sat 25/4

13:30-11:20

1 stop12h 50m

£596

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 4/4

05:55-12:20

1 stop15h 25m

Seattle/Tacoma Intl

Mon 20/4

08:00-08:05

1 stop15h 05m

£614

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

£614

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Fri 20/3

06:00-13:10

1 stop15h 10m

Seattle/Tacoma Intl

Sun 26/4

08:00-08:05

1 stop15h 05m

£616

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Fri 20/3

06:00-13:10

1 stop15h 10m

Seattle/Tacoma Intl

Fri 24/4

08:00-08:05

1 stop15h 05m

£616

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 19/3

06:00-13:10

1 stop15h 10m

Seattle/Tacoma Intl

Fri 24/4

07:00-08:05

2 stops16h 05m

£616

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 19/3

06:00-13:10

1 stop15h 10m

Seattle/Tacoma Intl

Sun 26/4

07:00-08:05

2 stops16h 05m

£616

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Fri 8/5

07:05-16:00

1 stop17h 55m

£393

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 4/4

07:05-15:40

1 stop17h 35m

£393

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Wed 22/4

18:25-11:35

1 stop26h 10m

£402

Flights are sorted by cheapest return flights first.

Deals found on 22/2

Showing 1-10 of 16 results
1
2

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 20 February 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, December is the cheapest month in which you can book a flight from Madrid to Seattle (average of £455). Flying from Madrid to Seattle in January is currently the most expensive (average of £626). 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 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 . Airlines will cover a distance of 5292 mi.

  • 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, December is the cheapest month in which you can book a flight from Madrid to Seattle (average of £455). Flying from Madrid to Seattle in January is currently the most expensive (average of £626). 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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Madrid to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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