MAD - SEA

$359 Find Cheap Flights from Madrid to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Madrid to Seattle departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Madrid to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Madrid to Seattle, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Madrid to Seattle (MAD-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Madrid to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Madrid to Seattle

Wed, Sep 17 - Fri, Oct 17
 Logo
7:05 am - 3:05 pmMAD-SEA
17h 00m1 stop
 Logo
5:05 pm - 9:55 pmSEA-MAD
19h 50m1 stop
Mon, Sep 29 - Mon, Oct 6
 Logo
7:05 am - 7:14 pmMAD-SEA
21h 09m2 stops
 Logo
5:05 pm - 9:55 pmSEA-MAD
19h 50m1 stop
Mon, Sep 29 - Mon, Oct 6
 Logo
7:05 am - 7:14 pmMAD-SEA
21h 09m2 stops
 Logo
5:05 pm - 9:55 pmSEA-MAD
19h 50m1 stop
Wed, Sep 17 - Wed, Sep 24
JetBlue Logo
1:30 pm - 10:19 amMAD-SEA
29h 49m1 stop
JetBlue Logo
11:30 am - 11:30 amSEA-MAD
15h 00m1 stop
$732JetBlue
Find Deal
Thu, Sep 4 - Wed, Sep 17
JetBlue Logo
1:30 pm - 10:19 amMAD-SEA
29h 49m1 stop
JetBlue Logo
11:30 am - 11:30 amSEA-MAD
15h 00m1 stop
$745JetBlue
Find Deal
Thu, Sep 4 - Wed, Sep 17
Lufthansa Logo
6:00 am - 11:55 amMAD-SEA
14h 55m1 stop
Lufthansa Logo
2:20 pm - 11:25 pmSEA-MAD
24h 05m1 stop
$758Lufthansa
Find Deal
Sat, Aug 30 - Sat, Jun 13
Lufthansa Logo
6:00 am - 11:55 amMAD-SEA
14h 55m1 stop
Lufthansa Logo
2:20 pm - 11:30 pmSEA-MAD
24h 10m1 stop
$760Lufthansa
Find Deal
Sat, Nov 1 - Sun, Nov 9
United Airlines Logo
12:35 pm - 10:13 pmMAD-SEA
41h 38m2 stops
United Airlines Logo
11:50 pm - 9:15 amSEA-MAD
24h 25m1 stop
$799United Airlines
Find Deal
Sat, Sep 6 - Mon, Sep 8
United Airlines Logo
6:00 am - 11:55 amMAD-SEA
14h 55m1 stop
United Airlines Logo
11:54 pm - 6:40 amSEA-MAD
21h 46m2 stops
$817United Airlines
Find Deal
Sat, Sep 13 - Tue, Sep 30
Delta Logo
6:00 am - 2:53 pmMAD-SEA
17h 53m2 stops
Delta Logo
7:10 am - 11:20 amSEA-MAD
19h 10m2 stops
$828Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Madrid to Seattle flights

Get data-powered insights and trends into flights from Madrid to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Madrid to Seattle?

The average price of all round-trip flights from Madrid to Seattle clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Seattle on a Saturday and more expensive on a Tuesday. On your return trip to Madrid, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

What is the cheapest month to fly from Madrid to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Madrid to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Madrid to Seattle is February, where tickets cost $626 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $1,005 and $969 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Madrid to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Madrid to Seattle, you should book around 4 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$359
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Madrid to Seattle

When to book flights from Madrid to Seattle

Are your dates flexible? Find out the best times to travel from Madrid to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Madrid to Seattle

  • Which other cities can I connect from Seattle-Tacoma International Airport?

    Apart from Seattle, a number of other cities are served by Seattle-Tacoma International Airport (SEA). Three of these cities, which you can easily connect to from SEA, include Bellevue, Tacoma, and Everett. Car rentals provide the most convenient means of transport from the airport to these cities.

  • What special services are available in flights from Madrid to Seattle?

    If you book American Airlines, you will have the opportunity to get special diets or kids’ meals for your young ones when flying from MAD to SEA. All airlines along this route offer wheelchair services, which makes them accommodating to persons with reduced mobility.

  • How eco-friendly are flights from Madrid to Seattle?

    Delta and American Airlines are among the most eco-friendly airlines flying from Madrid to Seattle. These airlines have a clear program aimed at reducing its carbon emission by adopting fuel efficient engines for all its planes. Therefore, if you are booking any of these, you can fly to Seattle from Madrid while reducing your carbon print.

  • How do travelers landing to Seattle International Airport (SEA) from Madrid International Airport get out of the airport?

    When planning your flight from Madrid to Seattle you will need to know what transport alternatives are available once you arrive at Seattle-Tacoma International Airport (SEA). Passengers leaving the airport can take buses, car rental, or taxis. If you prefer to rent a car, try making a reservation before arriving at the airport.

  • What is the cheapest flight from Madrid to Seattle?

    In the last 3 days, the lowest price for a flight from Madrid to Seattle was $359 for a one-way ticket and $600 for a round-trip.

  • Do I need a passport to fly between Madrid and Seattle?

    Yes, you’ll need a passport to travel to Seattle from Madrid.

  • Which airports will I be using when flying from Madrid to Seattle?

    Madrid and Seattle are both served by 1 main airport. You will leave Madrid from Madrid Barajas and will be arriving at Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Madrid to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Madrid to Seattle?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Madrid and Seattle, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Madrid to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Madrid to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Madrid to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Madrid is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Madrid to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Madrid with another airline. Booking your flights between Madrid and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Madrid to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Madrid up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Madrid to Seattle

  • Flights from Madrid to Seattle have Madrid-Barajas Airport (MAD) as the sole departure airport. Although most of the flights have Seattle-Tacoma International Airport (SEA) as the destination airport, you can fly along the less popular route. This route has Seattle Lake Union SPB (LKE) as the arrival airport, on which you are more likely to get cheaper flight deals.
  • To reach Madrid-Barajas Airport (MAD) from Downtown Madrid, use the efficient metro system. Take Line 8 (Pink) from Nuevos Ministerios or Line 10 (Dark Blue) from Plaza de España to reach Terminal 1, 2, 3, or 4. Alternatively, taxis, airport shuttles, and buses also provide convenient transport options.
  • You can fly directly from Madrid to Seattle or use flights with layovers, which are usually cheaper than the most sought after nonstop flights. British Airways and American Airlines are some of the airlines offering connecting flights, with London Heathrow Airport (LHR) and Chicago O’Hare Intl Airport (ORD) serving as the common layover airports.
  • If you are flying from Madrid to Seattle with your children, you will need an airline that has some of the best kid friendly services or amenities. United Airlines tops the list of the airlines to consider while flying with children. Compared to other airlines on this route, it has the most extra legroom and spacious seats in all its cabins, which ensures you and your kids remain comfortable all journey long.
  • Booking Air Europa Airlines, which has SEA as the operating base, gives you access to flights that are convenient to your travel schedules. This is because this airline has a high frequency of daily flights to SEA from MAD.

Reviews of the top 3 airlines serving from Madrid to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Madrid to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Madrid to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7979 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
Airline reviews

I believe that a four-hour trip should have a meal. Delta had none.

8.0 ExcellentPolycarp, Aug 2025JFK - SLC
Read more Delta reviews

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

It was beautiful easy and smooth experience. Thank you. Will definitely get Delta for my next travel.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

The food was great and the service and attitude was amazing!!

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Much better than the major US Carriers especially in Biz Class.

I wish that the meal included a vegetable or even a salad instead of couscous! Why serve chicken with rice AND couscous? Service was good overall though a bit lacking in friendliness. Usually on air france I've been offered a glass of champagne before dinner, wine with dinner, and a digestif after dinner. We were only offered wine this time!

It was not Air France but Air Europa. But confusion over our checked luggage. Whether it was checked all the way to Tenerife or not. It was not. Had to line up again in Departures. At least our Sky Priority was honoured. Flight was fine.

My wife and I had a row to ourselves after moving seats. There were no TVs and you had to buy food. So we did nothing but had a quick nap. Flight was fine.

The plane needs upgrading, the seats are uncomfortable, we are a family of three and they split us and did nothing to group us together, and the food is horrible compared to other airlines bu

Horrible almost missed my flight because my 1st flight was delayed. Airline crew is so unprofessional. The people on the plane do whatever they want kids running screaming. Will never fly this airline again Suitcases never arrived

People point to America as the model of late stage capitalism. My friends, airlines in america at least give you WiFi, and they haven’t quite smashed people into cardboard tv dinner trays yet. Iberia has mastered the tv dinner seat and WiFi is 20 euros. Be serious yall.

Boarding was odd. Gates switched and had to take a bus to the plane. Luggage got lost. Still waiting on one bag. Flight itself was very nice!

Do Not Fly Iberia. Horrible experience. Iberia changes things at random -like the date of the flight and seat you have bought. After buying my flight, they contacted me and told me I had to return a day later. Then when I was boarding the flight, I discovered they had changed my window seat in a row away from the wing, to an aisle seat in front of the toilet! The worse seat on the plane. But it wasn’t just me- a family was scattered all over the plane. I was able to trade my seat because a father was separated from his son. Unfortunately the seat was the window seat directly over the wing, the loudest seat in the plane. I couldn’t sleep, even with noise cancelling earphones. Also, I ordered gluten free meal-which was tasteless and gave me cramps.

I have nothing but great things to say about the crew of the American Airlines flight from Madrid to Dallas. They were fantastic! I do, however, have some disregard for the flight attendant that was late in Dallas, causing us to further delay the boarding of our flight to Portland, and leading to the eventual cancellation of that flight. Because that crew-member was so late, we got caught-up in a weather-related ground stop, eventually causing our pilots to "time-out". So we couldn't get out of Dallas. We would have departed DFW on-time (and before the arrival of the thunderstorm) if not for the lateness of that crew member. The whole time the pilots couldn't tell us whether the flight would be cancelled, and that they couldn't get any information from the airline. By the time we knew the flight was cancelled, all of the flights for the following day were full. So, we didn't even get offered a viable option to get home. The American Airlines customer service desk at DFW was grossly under-staffed. And there were several people who waited in line for four-hours before being helped at that desk. We waited in line for almost 2-hours, until I was able to speak with a customer service agent on the phone (after being on-hold for over an hour). So, once we knew the information about how to get our bag in PDX, and that there weren't any options for flights the next day, we left the line & began searching for another way home. We eventually had to purchase a ticket home on a different airline, in order to get my wife to work on Monday. And we are pursuing a refund of that DFW-PDX leg of the journey. The good news is that the late flight attendant's hair was perfect. And she looked fantastic as she departed the airport & headed back home, while we all hunkered down to sleep in the terminal for the night.

They need to start flying on time. We lost 2 days of our time because they delayed flight both ways.

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

The flight was over two hours delayed. The aircraft was somewhat dated.

There's not enough leg room in economy class. The seats are very narrow as well.

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

Information on your arrival and departure airports

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