$222 Find Cheap Flights from Seattle to Spain

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 Spain departing on 4/30. 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

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Flight Deals

Cheap Flights from Seattle to Spain

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Madrid
Madrid1 stop$542
Málaga
Málaga2 stops$484
Ibiza
Ibiza2 stops$632
Seville
Seville1 stop$671
Valencia
Valencia1 stop$606
Bilbao
Bilbao2 stops$522
Alicante
Alicante1 stop$507
Granada
Granada2 stops$802
San Sebastian
San Sebastian2 stops$743
Mahón
Mahón2 stops$822
Oviedo
Oviedo2 stops$754
Vigo
Vigo2 stops$870
A Coruña
A Coruña2 stops$754
Arrecife
Arrecife2 stops$730
Madrid
Madrid1 stop$542
Málaga
Málaga2 stops$484
Ibiza
Ibiza2 stops$632
Seville
Seville1 stop$671
Valencia
Valencia1 stop$606
Bilbao
Bilbao2 stops$522
Alicante
Alicante1 stop$507
Granada
Granada2 stops$802
San Sebastian
San Sebastian2 stops$743
Mahón
Mahón2 stops$822
Oviedo
Oviedo2 stops$754
Vigo
Vigo2 stops$870
A Coruña
A Coruña2 stops$754
Arrecife
Arrecife2 stops$730

Book Cheap Seattle to Spain Plane Tickets

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

Sat, Sep 5 - Fri, Sep 18
Scandinavian Airlines Logo
3:55 pm - 9:45 am
SEA
-
BCN
32h 50m
1 stop
Scandinavian Airlines Logo
10:25 am - 1:45 pm
BCN
-
SEA
36h 20m
1 stop
$482Scandinavian Airlines
Sat, Apr 18 - Sat, Apr 25
Multiple Airlines Logo
7:00 pm - 12:15 am
SEA
-
AGP
20h 15m
2 stops
Multiple Airlines Logo
6:30 am - 8:40 pm
AGP
-
SEA
23h 10m
2 stops
$484Multiple Airlines
Fri, Apr 24 - Tue, May 5
Icelandair Logo
7:00 pm - 10:55 pm
SEA
-
ALC
18h 55m
1 stop
Icelandair Logo
11:50 pm - 5:55 pm
ALC
-
SEA
27h 05m
1 stop
$514Icelandair
Tue, Apr 21 - Wed, May 6
Icelandair Logo
7:00 pm - 10:55 pm
SEA
-
ALC
18h 55m
1 stop
Icelandair Logo
3:50 pm - 8:40 pm
ALC
-
SEA
13h 50m
1 stop
$535Icelandair
Fri, Apr 24 - Fri, May 1
British Airways Logo
8:20 pm - 10:35 pm
SEA
-
MAD
17h 15m
1 stop
British Airways Logo
9:00 pm - 11:35 am
MAD
-
SEA
23h 35m
1 stop
$542British Airways
Wed, Jul 29 - Wed, Aug 26
British Airways Logo
1:30 pm - 8:35 pm
SEA
-
VLC
22h 05m
1 stop
British Airways Logo
8:20 pm - 11:35 am
VLC
-
SEA
24h 15m
1 stop
$606British Airways
Mon, Apr 13 - Wed, Apr 22
United Airlines Logo
11:59 pm - 4:00 pm
SEA
-
BIO
31h 01m
2 stops
United Airlines Logo
6:50 am - 11:27 pm
BIO
-
SEA
25h 37m
3 stops
$654United Airlines
Mon, Apr 13 - Wed, Apr 22
United Airlines Logo
12:08 pm - 4:00 pm
SEA
-
BIO
42h 52m
3 stops
United Airlines Logo
6:50 am - 11:27 pm
BIO
-
SEA
25h 37m
3 stops
$666United Airlines
Fri, Apr 10 - Sat, May 2
Lufthansa Logo
7:00 am - 2:50 pm
SEA
-
XRY
22h 50m
2 stops
Lufthansa Logo
4:05 pm - 12:20 pm
XRY
-
SEA
29h 15m
1 stop
$1,300Lufthansa
Fri, Apr 10 - Sat, May 2
Lufthansa Logo
7:00 am - 2:50 pm
SEA
-
XRY
22h 50m
2 stops
Lufthansa Logo
4:05 pm - 4:59 pm
XRY
-
SEA
33h 54m
2 stops
$1,317Lufthansa
Booking Insights

KAYAK's insights & trends for Seattle to Spain flights

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

What is the cheapest Seattle to Spain flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Spain from Seattle found in the last 72 hours was to Barcelona, at $721 round-trip. The most popular route is from Seattle (SEA) to Barcelona-El Prat Airport (BCN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $721.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Spain, 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 Spain is January, when tickets cost $492 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,141 and $1,122 respectively.

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

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 Spain, 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 Spain, you should book around 3 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$222
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Seattle to Barcelona

FAQs - booking Spain flights

  • Can I fly to Spain on business when given short notice?

    Yes, you can go to Spain on short notice. Thanks to the diplomatic relationship between the U.S. and Spain, citizens do not need to apply for a visa to enter Spain. Your stay cannot exceed 90 days, and your passport must be valid for three months. You require proof of vaccination, travel insurance, and a return plane ticket.

  • Can I get a non-stop flight to Spain?

    There are no airlines that offer direct flights from Seattle to Spain. You can opt for a flight with a single layover or a cheaper flight with two layovers, one of which will be in New York at the JFK International Airport. You should not feel discouraged as the layovers are short and usually between 2 to 5h.

  • How can I get to the capital of Spain from Seattle?

    To get to Madrid, the capital of Spain, from Seattle, most passengers take a flight from Seattle-Tacoma International Airport to Madrid Barajas International Airport. This airport puts you in the middle of the capital city. You can easily access the rest of the city through their well-developed transport network.

  • I am flying with my children to Spain; what is the best place to land with kids?

    Flying with children can be a hassle, especially if you have to wait at your destination to be picked up by someone. Getting them to sit and wait is difficult as they love exploring and moving around. You can achieve this by flying from Seattle to Barcelona Airport–El Prat Airport. Though there are other international airports to choose from, this is less busy and has a fully-equipped children’s play area.

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

    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 Spain.

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

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

    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 from Seattle to Spain with an airline and back with another airline.

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

    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 from Seattle to Spain up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Spain

  • If you want to cram a lot of traveling into a short Spain trip and have the most fun, consider a flight to Madrid. It is located at the tourism hub in Spain and easily connects to many nearby historic towns. From Madrid, you can easily access Aranjuez, renowned as the Royal Retreat, Ávila, also called Stones and Saints, and La Granja De San Ildefonso, the 15th-century palace built by King Enrique IV.
  • Making your way to your hotel or area of interest is easy once your flight from Seattle arrives at the destination airport. The transport infrastructure in Madrid and Barcelona is well-developed, allowing you many choices. You can opt for a rental car, a public bus, the underground railway, or airport shuttle buses.
  • Madrid Barajas International Airport may not be the biggest airport in Spain, but it still carries the title of being the most convenient. Not only will you incur less human and car traffic, but you also get access to their best facilities, including restaurants within the airport. You will find shorter lines and faster service with flights from Seattle to Spain.
  • Need to be free of your luggage for a short time while you figure out your next move? Fly to Spain on a flight to Barcelona International Airport. The airport offers luggage storage for both short- and long-term. You can leave your luggage for around $3 per hour and explore the airport and the city.
  • It can be a hassle to take a taxi to the airport. Seattle International Airport provides long-term parking on-site at the SeaTac terminal that you can take advantage of before your flight to Spain. Direct parking costs $273 per week, general parking $149 per week, and parking for repeated flyers costs $375 per month.

Reviews of the top 5 airlines serving from Seattle to Spain

 
Need help choosing which airline to fly with from Seattle to Spain? 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 8277 reviews
7.8Entertainment
8.5Crew
7.9Comfort
7.2Food
8.1Boarding
Airline reviews

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

8.0 ExcellentMary, Mar 2026
LGA - MKE
Read more Delta reviews

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

Good flight. Connector flight was delayed so made a short turnaround in Atlanta which was stressful. Otherwise, great crew, Staff in ATL was very informative about the delay and ensured people their connections were fine. Notified the ones that were not. Great communication.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

They lost my bag and I still haven’t received it yet

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Not consistent with the food quality (I mean taste not freshness)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

Our flight crew were terrific. And they handle a difficult passenger with finesse.

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.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

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.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

The luggage problem I previously mentioned was actually this flight

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Late. And service was very slow - passengers sat for well over an hour with dirty trays etc surrounding them

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

Information on your arrival and departure airports