MAD - SEA

$387 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 12/11. 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

Sat, Feb 14 - Sat, Feb 21
Multiple Airlines Logo
7:05 am - 3:40 pmMAD-SEA
17h 35m1 stop
Multiple Airlines Logo
5:40 pm - 9:55 pmSEA-MAD
19h 15m1 stop
$558Multiple Airlines
Find Deal
Sat, Nov 15 - Mon, Dec 1
Multiple Airlines Logo
7:05 am - 3:40 pmMAD-SEA
17h 35m1 stop
Multiple Airlines Logo
5:40 pm - 9:55 pmSEA-MAD
19h 15m1 stop
$568Multiple Airlines
Find Deal
Thu, Nov 13 - Thu, Nov 27
Multiple Airlines Logo
7:05 am - 3:40 pmMAD-SEA
17h 35m1 stop
Multiple Airlines Logo
5:40 pm - 9:55 pmSEA-MAD
19h 15m1 stop
$589Multiple Airlines
Find Deal
Sat, Feb 14 - Sat, Feb 21
Air Canada Logo
6:00 am - 7:16 pmMAD-SEA
22h 16m2 stops
Air Canada Logo
8:00 pm - 12:05 pmSEA-MAD
31h 05m2 stops
$750Air Canada
Find Deal
Thu, Nov 13 - Thu, Nov 27
Air Canada Logo
6:00 am - 10:06 pmMAD-SEA
25h 06m2 stops
Air Canada Logo
3:40 pm - 8:00 amSEA-MAD
31h 20m2 stops
$764Air Canada
Find Deal
Fri, Oct 31 - Wed, Nov 19
Lufthansa Logo
6:00 am - 1:10 pmMAD-SEA
15h 10m1 stop
Lufthansa Logo
3:10 pm - 5:50 pmSEA-MAD
17h 40m1 stop
$774Lufthansa
Find Deal
Wed, Jan 7 - Wed, Jan 14
Delta Logo
6:00 am - 10:08 pmMAD-SEA
25h 08m2 stops
Delta Logo
6:00 am - 11:30 amSEA-MAD
20h 30m2 stops
$775Delta
Find Deal
Sat, Nov 15 - Mon, Dec 1
Lufthansa Logo
6:00 am - 12:10 pmMAD-SEA
15h 10m1 stop
Lufthansa Logo
2:00 pm - 1:15 pmSEA-MAD
14h 15m1 stop
$776Lufthansa
Find Deal
Fri, Feb 13 - Sat, Feb 21
Iberia Logo
12:55 am - 9:18 pmMAD-SEA
29h 23m1 stop
Iberia Logo
1:35 pm - 12:40 pmSEA-MAD
14h 05m1 stop
$800Iberia
Find Deal
Sun, Nov 9 - Sun, Nov 16
Delta Logo
6:00 am - 11:45 amMAD-SEA
14h 45m1 stop
Delta Logo
7:30 am - 11:30 amSEA-MAD
19h 00m2 stops
$822Delta
Find Deal

Everything you should know

Top airlines
Air Canada
Cheapest • from $750 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 26% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$558
Overall average: $632
Multiple Airlines
Sat 2/14Sat 2/21
MAD - SEA • 1 stop
Cheapest one-way
$387
Typical prices: $595-$838
Multiple Airlines
Thu 12/11
MAD - SEA • 3 stops
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We hope you love your trip to Seattle!
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 $632 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $1,052 and $1,040 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 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$387
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 14% 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 $387 for a one-way ticket and $558 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.

  • Which is the best airline for flights from Madrid to Seattle, Delta or Air France?

    The two airlines most popular with KAYAK users for flights from Madrid to Seattle are Delta and Air France. With an average price for the route of $965 and an overall rating of 7.9, Delta is the most popular choice. Air France is also a great choice for the route, with an average price of $829 and an overall rating of 7.4.

  • 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.
7.9
DeltaOverall score based on 7972 reviews
7.3Food
7.9Entertainment
8.2Boarding
8.5Crew
7.9Comfort
Airline reviews

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

8.0 ExcellentAnonymous, Oct 2025ATL - STL
Read more Delta reviews

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight was an hour and a half late departing which was inconvenient

Delay in SLC jammed us up in Chicago. Got caught up in rush hour traffic

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

The crew was not very visible. This might be a good thing for people who wanted to sleep but seemed odd when compared to the Atlantic crossing where they are more present in the cabin. The Food (beef) was not good. Tough and tasteless. Would love to see more choices on a long flight like that.

The flight was great. The gate location was way to far away!!!

This was our second flight using the Delta One class of service. Overall, it’s a good product but for me the POD configuration is a bit constrictive. I am an average size male at 5’ 10” height weighing 190 lbs so it’s not a size thing for me. I’d rather have extra wide seats without the POD walls to be honest.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

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!

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

I paid for extra legroom which made the long flight very comfortable. Food was very tasty, they fed us 2 meals plus a cookie snack and extra liquids. Checked luggage is expensive.

Lufthansa is turning into a budget airline. On transfers, the luggage never arrives if you have less than 2 hours for the transfer. This is happened to me multiple times when I end up on flights serviced by Lufthansa. The first leg of the flight was serviced by Discover Airlines. It was a 3-hour flight and they only offer a glass of water. Everything else is for purchase. I purchased my ticket as economy which should have included a bag but it ended up booking as economy light so I had to pay for a bag in each direction.

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

Information on your arrival and departure airports

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