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Cheap flights from Madrid, Spain to Seattle from £389

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 14/2. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SEA
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap 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 18 September 2025.

Round-trip from

£476

One-way from

£389

Popular in

August

Cheapest in

February

Average price

£568
1/11-8/11
  • 1/11-8/11
  • 2 total stops
  • 36h 50m total
  • Madrid to Seattle
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British Airways
  • British Airways
  • 14/2
  • 2 total stops
  • 19h 17m total
  • Madrid to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Madrid to Seattle

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 18 September 2025.

Sat 1/1107:05MAD - SEA
1 stop17h 35mMultiple Airlines
Sat 8/1117:40SEA - MAD
1 stop19h 15mMultiple Airlines
Deal found 17/9£476
Mon 1/1207:05MAD - SEA
1 stop17h 35mMultiple Airlines
Thu 4/1217:40SEA - MAD
1 stop19h 15mMultiple Airlines
Deal found 17/9£511
Thu 2/1010:25MAD - SEA
1 stop14h 40mDelta
Mon 13/1006:00SEA - MAD
2 stops20h 20mDelta
Deal found 16/9£608
Mon 3/1106:00MAD - SEA
2 stops17h 41mDelta
Mon 17/1111:46SEA - MAD
2 stops18h 34mDelta
Deal found 16/9£613
Mon 3/1111:15MAD - SEA
1 stop20h 26mUnited Airlines
Mon 17/1105:05SEA - MAD
2 stops19h 10mUnited Airlines
Deal found 16/9£618
Wed 1/1006:00MAD - SEA
1 stop14h 50mMultiple Airlines
Fri 10/1018:35SEA - MAD
1 stop15h 45mMultiple Airlines
Deal found 16/9£621
Wed 1/1006:00MAD - SEA
2 stops20h 54mDelta
Fri 10/1018:35SEA - MAD
1 stop13h 10mDelta
Deal found 16/9£625
Mon 27/1006:00MAD - SEA
2 stops18h 30mDelta
Sat 1/1121:59SEA - MAD
1 stop26h 01mDelta
Deal found 16/9£628
Wed 1/1006:00MAD - SEA
1 stop14h 50mKLM
Fri 10/1014:00SEA - MAD
1 stop14h 40mKLM
Deal found 17/9£629

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 18 September 2025.
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

Mon 1/12

07:05-15:40

1 stop17h 35m

Seattle/Tacoma Intl

Thu 4/12

17:40-21:55

1 stop19h 15m

£511

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Mon 23/2

08:25-22:29

2 stops23h 04m

Seattle/Tacoma Intl

Fri 27/3

15:00-16:10

1 stop17h 10m

£564

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 21/2

08:25-20:56

2 stops21h 31m

Seattle/Tacoma Intl

Fri 27/3

15:00-16:10

1 stop17h 10m

£578

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 19/2

06:00-12:10

1 stop15h 10m

Seattle/Tacoma Intl

Sat 28/3

23:50-06:40

2 stops21h 50m

£583

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Mon 23/2

06:00-12:10

1 stop15h 10m

Seattle/Tacoma Intl

Tue 31/3

08:00-08:05

1 stop15h 05m

£583

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 19/2

06:00-12:10

1 stop15h 10m

Seattle/Tacoma Intl

Tue 31/3

05:07-09:00

2 stops18h 53m

£583

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sun 22/2

07:25-13:20

1 stop14h 55m

Seattle/Tacoma Intl

Sun 29/3

18:50-22:25

1 stop18h 35m

£585

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Wed 25/2

05:55-23:30

2 stops26h 35m

Seattle/Tacoma Intl

Tue 31/3

05:15-09:00

2 stops18h 45m

£588

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Wed 25/2

05:55-21:01

3 stops24h 06m

Seattle/Tacoma Intl

Mon 30/3

07:00-09:00

2 stops17h 00m

£588

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Sat 21/2

06:00-12:10

1 stop15h 10m

Seattle/Tacoma Intl

Tue 31/3

05:07-09:00

2 stops18h 53m

£596

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 20 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 12 September 2025.

Booking 13 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, January is the cheapest month in which you can book a flight from Madrid to Seattle (average of £622). Flying from Madrid to Seattle in July is currently the most expensive (average of £946). 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 Lufthansa and United Airlines fly from Madrid to Seattle in about 15h 10m. The time it takes to get you to your destination can typically vary by up to 7h 54m. 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, January is the cheapest month in which you can book a flight from Madrid to Seattle (average of £622). Flying from Madrid to Seattle in July is currently the most expensive (average of £946). 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
Leavenworth
Bothell
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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