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Cheap flights from Seattle to Madrid, Spain

SEA — MAD
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Seattle to Madrid

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Madrid (MAD). 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 11 September 2025.

Popular in

December

Cheapest in

February

Average price

C$ 1,117
Highest demand for flights based on searches. 5% potential increase in price (C$ 107 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 90 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Best time to book a flight from Seattle to Madrid

Have a flexible travel schedule? Discover the best time to fly to Madrid from Seattle with our price prediction graph.
Estimated round-trip 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 Seattle to Madrid

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Madrid. Price data was last updated on 29 August 2025.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Madrid. 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 Seattle to Madrid?

Currently, November is the cheapest month in which you can book a flight from Seattle to Madrid (average of C$ 658). Flying from Seattle to Madrid in December is currently the most expensive (average of C$ 951). 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.

What is the cheapest time of day to fly from SEA to MAD?

Find hourly flight availability from Seattle to Madrid. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 24% on flights from Seattle to Madrid by exploring options for tickets in the afternoon.

Reviews of airlines servicing Madrid

Get insights into the airlines that provide service to Madrid. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Madrid. Reviews last updated 11 September 2025.
Read through reviews of airlines operating flights from Seattle to Madrid, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,361 reviews
Check prices

Entertainment

6.4

Food

6.3

Boarding

6.9

Comfort

6.7

Overall

6.7

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,361 reviews
British Airways
6.7
Okay
7,361 reviews
Check prices

Entertainment

6.4

Food

6.3

Boarding

6.9

Comfort

6.7

Overall

6.7

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

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

  • What is the cheapest airline to fly from Seattle to Madrid round-trip?

    Flying on British Airways is currently your cheapest option to Madrid, with prices starting at C$ 749. You may be able to fly from Seattle to Madrid for 41% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Madrid 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 Seattle to Madrid?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Madrid (average of C$ 658). Flying from Seattle to Madrid in December is currently the most expensive (average of C$ 951). 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.

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Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to Madrid

Discover the top airline that operate flights from Seattle to Madrid. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 749AverageC$ 1,045FlexibilityNo cancel feeOn-time70%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Seattle to Madrid via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Madrid for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Seattle to Madrid 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 Seattle to Madrid become cheaper?

Of course! You can now track prices for flights from Seattle to Madrid 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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