SEA - MAD

$262 Find Cheap Flights from Seattle to Madrid

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Madrid departing on 3/15. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Madrid.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Madrid.
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Everything you should know

Cheapest round-trip
$489
Overall average: $783
Lufthansa
Tue 1/6Fri 1/16
SEA - MAD • 2 stops
Cheapest one-way
$262
Typical prices: $490-$754
British Airways
Sun 3/15
SEA - MAD • 1 stop
Video guide: How to find cheap flights to Madrid
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Top airlines
Lufthansa
Cheapest • from $489 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 23% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Madrid (SEA-MAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Madrid 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 Seattle to Madrid

Tue, Jan 6 - Fri, Jan 16
Lufthansa Logo
3:40 pm - 8:00 amSEA-MAD
55h 20m2 stops
Lufthansa Logo
7:25 am - 1:20 pmMAD-SEA
14h 55m1 stop
$489Lufthansa
Find Deal
Thu, Jan 8 - Thu, Jan 29
Lufthansa Logo
2:10 pm - 11:35 pmSEA-MAD
24h 25m2 stops
Lufthansa Logo
6:00 am - 12:10 pmMAD-SEA
15h 10m1 stop
$490Lufthansa
Find Deal
Sat, Nov 22 - Wed, Dec 3
Air Canada Logo
8:00 pm - 1:00 pmSEA-MAD
32h 00m2 stops
Air Canada Logo
5:55 am - 9:31 amMAD-SEA
36h 36m2 stops
$491Air Canada
Find Deal
Sat, Nov 22 - Wed, Dec 3
Air Canada Logo
8:00 pm - 1:00 pmSEA-MAD
32h 00m2 stops
Air Canada Logo
1:35 pm - 2:31 pmMAD-SEA
33h 56m2 stops
$492Air Canada
Find Deal
Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
7:00 am - 4:40 pmSEA-MAD
24h 40m2 stops
United Airlines Logo
11:15 am - 4:01 pmMAD-SEA
37h 46m3 stops
$501United Airlines
Find Deal
Mon, Feb 23 - Fri, Mar 13
KLM Logo
8:30 am - 9:15 amSEA-MAD
15h 45m1 stop
KLM Logo
6:00 am - 12:35 pmMAD-SEA
14h 35m1 stop
$506KLM
Find Deal
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
7:00 am - 4:40 pmSEA-MAD
24h 40m2 stops
United Airlines Logo
1:35 pm - 6:27 pmMAD-SEA
61h 52m3 stops
$507United Airlines
Find Deal
Tue, Jan 20 - Sun, Mar 1
Delta Logo
9:59 pm - 8:00 amSEA-MAD
25h 01m1 stop
Delta Logo
6:00 am - 1:05 pmMAD-SEA
16h 05m1 stop
$512Delta
Find Deal
Mon, Feb 23 - Fri, Mar 13
Delta Logo
6:04 am - 9:15 amSEA-MAD
18h 11m1 stop
Delta Logo
6:00 am - 8:31 pmMAD-SEA
22h 31m2 stops
$516Delta
Find Deal
Fri, Nov 28 - Sun, Dec 7
KLM Logo
6:00 am - 8:00 amSEA-MAD
17h 00m1 stop
KLM Logo
8:30 pm - 11:50 amMAD-SEA
24h 20m1 stop
$553KLM
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Madrid flights

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

Find cheap flights to Madrid
Find cheap flights to Madrid

Planning a trip from Seattle to Madrid? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Madrid, 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 Seattle to Madrid is September, where tickets cost $683 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,310 and $1,172 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Madrid, 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 Seattle to Madrid, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$262
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Seattle to Madrid

When to book flights from Seattle to Madrid

Are your dates flexible? Find out the best times to travel from Seattle to Madrid 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 Seattle to Madrid

  • Does MAD provide medical services to its travelers?

    Yes. The airport has three medical centers in the Arrival Halls of T4 and T2 and Terminal T4 Satellite. There are also 75 Heart Rescue Areas you can visit in case of a heart attack. Four pharmacies are also available Terminal T4, T1, and T2.

  • Can I access financial and communication services at MAD?

    Yes. There are multiple banks in each terminal at the airport and you can find ATMs in the public arrivals lounge in each terminal. The Exact Change also offers currency exchange services in Terminal T1 Baggage Claim Halls 1 and 2. You can opt for Global Exchange company in Terminal T4 Baggage Claim Halls 10 and 11.

  • Which lounges are available at SEA?

    SEA hosts 12 lounges, including all Alaska Airline Lounges, The Club at SEA, and United Club. Exclusive lounges are The Centurion Lounge in Concourse A and B, British Airways Terraces Lounges in South Satellite Terminal, and USO Lounge for active U.S. military members in the Central Terminal.

  • Are there pet-friendly facilities at SEA?

    Yes. SEA is pet-friendly; hence you can bring along your furry friend. There are four pet relief areas at the airport. If you exit through Concourse B, you can utilize the outdoor pet relief areas near the exit. There are pet relief areas on Level 2 of the South Satellite and North Satellite terminals.

  • What is the cheapest flight from Seattle to Madrid?

    In the last 3 days, the lowest price for a flight from Seattle to Madrid was $262 for a one-way ticket and $489 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Seattle to Madrid?

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

  • What is the most popular layover when flying to Madrid from Seattle?

    London is the most popular layover city among KAYAK users traveling from Seattle to Madrid.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Madrid are Delta and KLM. With an average price for the route of $900 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $892 and an overall rating of 7.7.

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

    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 Seattle to Madrid.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Madrid from Seattle 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 Seattle to Madrid?

    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 Madrid with an airline and back to Seattle with another airline. Booking your flights between Seattle and MAD 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 Seattle to Madrid?

    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 Madrid from Seattle 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 Seattle to Madrid

  • Seattle Tacoma International Airport (SEA) has enhanced accessibility for travelers with physical and hidden disabilities. The airport has amplified phones for the hearing impaired, accessible toilets, ramps, lowered drinking fountains, and adapted lifts with braille signage. Those who need a wheelchair and additional assistance can request it through their airlines. Accessible parking spaces are available in the car park facility at the airport.
  • SEA International Airport has 50 restaurants, cafés, and fast-food outlets where you can sit and dine or grab a bite while waiting for your flight. You can check out Floret-By Café Flora, Beecher’s Handmade Cheese, or Stonehouse Café and Bar in the Main Terminal for quality coffees or snacks. In the North Satellite, you will find Bambuza and Skillet restaurants. If you are craving seafood, visit Dungeness Bay Seafood House in South Satellite.
  • SEA International Airport offers several parking facilities offering various parking services to its travelers. You will access short-term parking services in Terminal Direct parking on Level 4 next to the terminal, while long-term parking services are available on the same parking on Levels 1 to 3 and 5 to 8. On Levels 4 and 5 of the Terminal Direct parking, there are 48 electric vehicle charging spaces.
  • Madrid Barajas International Airport (MAD) provides family-friendly facilities for family travelers. The airport has kids' play areas designated for kids up to 6 years old in all the airport's terminals at the baggage claims. A breastfeeding lounge is available in Terminal T2 and T4.
  • The MAD Airport hosts business facilities offering services to corporate travelers on business or work trips. There is a multi-functional business center on-site in Terminal 4 with formal waiting lounges and meeting rooms and offers courier, fax, and printing services. You will access the internet, workstations, and working breakfast and lunches in the center.

Reviews of the top 5 airlines serving from Seattle to Madrid

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Madrid. 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 Seattle to Madrid? 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 8001 reviews
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
8.2Boarding
Airline reviews

I truly love flying with Delta. They have always treated me with the upmost respect

10.0 ExcellentMAYRA, Nov 2025JFK - MIA
Read more Delta reviews

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

My flight was canceled 1 minute before boarding. The customer service was owful, no one could tell us what was going happened. I spent 30hrs instead of 15 from Washington DC to Brussels. No apologie or help

Boeing 777 is a bad choice for a such a long flight.

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

This is my 2nd time with the Turkish airline. Would definitely recommend. In stability we connected to Indiago would not recommend, very cramped seating. No inflight entertainment..service was inferior.

I wouldn't know what the flight was like. AI canceled my flight reservation!! There's no way to speak to an actual human to fix the issue! NEVER AGAIN! ALWAYS BOOK YOUR FLIGHT DIRECTLY WITH THE AIRLINE NEVER GO THROUGH KAYAK OR JUSTFLY.COM!!

Paying extra for premium seats was wasted. Turkish Airlines takes 2 seats for bassinet. The lady next to me had a baby with bassinet Bassinet was in front of my seat

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

During mid flight, try to get a flight attendant to help I couldn’t find one Otherwise, everything was perfect

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Excellent. Thanks to United Star Alliance, since economy was overbooked, I’m grateful to have been upgraded to Business Class.

Good plane, excellent food, crew and entertainment. Seats in business could use an upgrade

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

Flight was OK. Waiting for luggage in Madrid for 55 minutes, unacceptable

Transportation from gate to airplane was poor we stayed in hot bus for 20 minute no vantilation

The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

Boarding an international flight via several sets of stairs and shuttle busses to the tarmac even when multiple jet-bridges were empty at Madrid airport (the hub for Iberia) was not pleasant. I was fine, but a lot of elderly folks and families with kids were struggling. A bad way to start a flight. Business class seats were nice, although not cleaned well from the prior flight.

The flight was great; I don't see any area of improvement.

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

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

Information on your arrival and departure airports