MAD - SEA

$328 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 5/22. 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.
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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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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Madrid to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from Madrid to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
7:05 am - 3:05 pmMAD-SEA
17h 00m1 stop
 Logo
5:05 pm - 9:55 pmSEA-MAD
19h 50m1 stop
Thu, May 22 - Fri, Jun 6
 Logo
7:05 am - 3:05 pmMAD-SEA
17h 00m1 stop
 Logo
5:25 pm - 9:55 pmSEA-MAD
19h 30m1 stop
Tue, Jun 3 - Tue, Jun 3
American Airlines Logo
1:00 pm - 9:08 pmMAD-SEA
17h 08m1 stop
American Airlines Logo
5:20 am - 5:30 amSEA-MAD
15h 10m1 stop
$654American Airlines
Find Deal
Thu, May 15 - Wed, May 28
American Airlines Logo
1:00 pm - 9:08 pmMAD-SEA
17h 08m1 stop
American Airlines Logo
5:20 am - 5:30 amSEA-MAD
15h 10m1 stop
$663American Airlines
Find Deal
Thu, May 15 - Wed, May 28
Iberia Logo
4:40 pm - 11:50 pmMAD-SEA
16h 10m1 stop
Iberia Logo
9:57 am - 9:05 amSEA-MAD
14h 08m1 stop
$705Iberia
Find Deal
Wed, Sep 17 - Tue, Sep 30
Iberia Logo
4:40 pm - 11:50 pmMAD-SEA
16h 10m1 stop
Iberia Logo
9:57 am - 9:05 amSEA-MAD
14h 08m1 stop
$721Iberia
Find Deal
Fri, Sep 19 - Tue, Sep 30
Delta Logo
6:00 am - 6:57 pmMAD-SEA
21h 57m2 stops
Delta Logo
11:45 am - 3:35 pmSEA-MAD
18h 50m2 stops
$776Delta
Find Deal
Sat, Sep 13 - Tue, Sep 30
Delta Logo
10:20 am - 8:19 pmMAD-SEA
18h 59m2 stops
Delta Logo
6:45 pm - 4:45 pmSEA-MAD
13h 00m1 stop
$778Delta
Find Deal
Thu, May 29 - Mon, Jun 2
KLM Logo
8:25 pm - 3:55 pmMAD-SEA
28h 30m1 stop
KLM Logo
2:05 pm - 1:40 pmSEA-MAD
14h 35m1 stop
$963KLM
Find Deal
Fri, Jun 27 - Wed, Jul 9
KLM Logo
6:00 am - 11:35 amMAD-SEA
14h 35m1 stop
KLM Logo
7:15 am - 7:50 amSEA-MAD
15h 35m1 stop
$964KLM
Find Deal
Thu, Jul 24 - Tue, Aug 5
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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 $654 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $1,078 and $1,053 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonMarch
High seasonJune
Cheapest flight$328
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 5% 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 $328 for a one-way ticket and $556 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, oneworld, 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 KLM?

    The two airlines most popular with KAYAK users for flights from Madrid to Seattle are Delta and KLM. With an average price for the route of $1,039 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,061 and an overall rating of 7.8.

  • 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.

Top 5 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 7934 reviews
8.2Boarding
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

6.0 GoodTina, Apr 2025MSP - CLT
Read more Delta reviews

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Delta is a cut above the others in customer service.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

My experience was good overall, the quality of the food really decreased! There used to be a choice between meat and fish now it’s between chicken and pasta! In the choices of entertainment meditation has been added which is very good. Soft chair workout to improve blood circulation and avoid phlebitis should be added.

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 male attended that served are section was a snob. He did not answer my call light when my wine spilled all over the floor. I did not push it again or drew his attention to it. He just ignored the call light when he came to give us our meal, serving the people behind us first. I did not push it again or drew his attention to it to see his reaction. It was so obvious that he was ignoring us. We were in premium economy!

The plane was old Only 3 bathrooms available for economy The entertainment was old and the selection was poor

Georgian Airways check in staff initially denied us, because they thought passengers required transit visas to transfer on connecting flights. This required 70 minutes for them to call multiple people to confirm how transfers worked. They did not apologize once accepting our check in. Onboard, the four hour flight gave stale bread with spam slices as lunch. The only included drinks were still or sparkling water.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

Pitch was very small. Knees were on the seat back in front of me.

Paid $35 and not able to access the internet at all.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

Very good service from San Jose to Madrid . Ryanair service from Madrid to Brussels 😕

I wish they could put the pre-tsa check on the tickets or global entry.

Couldn’t keep my luggage and had no choice. Ground staff didn’t even bother to explain why.

We upgraded to Business class paying approx. $1,300. Despite the upgrade, we were still required to pay an additional €70 for a checked bag. Furthermore, we were informed that another €70 would have been charged for our carry-on bag, as it was 3kg over the limit. To avoid this, we had to move clothing from the carry-on into the checked bag, which was both inconvenient and frustrating. Given the significant amount paid for the Business Class upgrade, we found this treatment to be quite appalling and disappointing. We expected a higher level of service and consideration for our luggage, and this experience did not meet those expectations.

Great flight, short and good attention. Didn't took any food so can't say thing about it

At Barcelona, you have to get your passports checked before going to the E gates so give yourself time for that. The restaurants around the D and E gates are really limited compared to prior to passport control. On boarding, the gate staff tried to charge me EUR100 for my carryon, saying it was too big. I put it in their ‘measurement box’ and it fit with the top slightly protruding where the handle was. The gate staff then said my bag was ok to carry and put an ‘approved’ tag on my bag. I was bussed to the plane I boarded a ‘Level’ carrier which I had not heard of before. If you booked through a code share like American, you will be served food and alcohol on the plane. They do not provide complimentary ear phones or blankets. The internet was free but only for texting. WhatsApp worked but Spotify did not. Entertainment choice was adequate, movies were old and selection was limited. On arrival at LAX, my checked in bag was damaged as the wheel was broken. I am taking this up with Iberia. Their website and customer service was moderate in terms of user friendliness. You have to have all your documents and prepared to be patient and persistent. Let’s see how this goes. All n all, for the price I paid, I would recommend Level.

Excellent with no delays and according to the time schedule.

Its a bus taking you on and off the plane so if you have big luggage … more muscles needed

Flight LIN MAD. Checkin was fine (but I must admit that being a Platinum member I skip the lines). Security was fine (they have the new machines where you need not take laptops or liquids out). Longe was OK (BA). Boarding was a mess, the boarding gate personnel were rude and some should simply not be in a customer facing position. Flight in itself was fine, usual Iberia European coach. We were on time and actually time to deliver luggage was better than normal for Barajas

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