$236 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 4/27. 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$481
Málaga
Málaga1 stop$456
Seville
Seville1 stop$558
Valencia
Valencia1 stop$454
Ibiza
Ibiza1 stop$578
Bilbao
Bilbao1 stop$468
Alicante
Alicante1 stop$491
Granada
Granada3 stops$739
San Sebastian
San Sebastian2 stops$1,013
Mahón
Mahón2 stops$1,079
Oviedo
Oviedo1 stop$594
Vigo
Vigo2 stops$796
A Coruña
A Coruña2 stops$654
Arrecife
Arrecife2 stops$813
Madrid
Madrid1 stop$481
Málaga
Málaga1 stop$456
Seville
Seville1 stop$558
Valencia
Valencia1 stop$454
Ibiza
Ibiza1 stop$578
Bilbao
Bilbao1 stop$468
Alicante
Alicante1 stop$491
Granada
Granada3 stops$739
San Sebastian
San Sebastian2 stops$1,013
Mahón
Mahón2 stops$1,079
Oviedo
Oviedo1 stop$594
Vigo
Vigo2 stops$796
A Coruña
A Coruña2 stops$654
Arrecife
Arrecife2 stops$813

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

Sun, May 3 - Sat, May 9
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$405Icelandair
Thu, Apr 30 - Sun, May 10
Icelandair Logo
7:00 pm - 2:45 pm
SEA
-
BCN
34h 45m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$407Icelandair
Tue, Mar 3 - Tue, Mar 10
Lufthansa Logo
2:00 pm - 11:20 pm
SEA
-
VLC
24h 20m
1 stop
Lufthansa Logo
6:20 pm - 2:20 pm
VLC
-
SEA
28h 00m
1 stop
$454Lufthansa
Mon, Mar 16 - Mon, Mar 23
Lufthansa Logo
3:00 pm - 5:10 pm
SEA
-
PMI
18h 10m
1 stop
Lufthansa Logo
4:05 pm - 1:10 pm
PMI
-
SEA
29h 05m
1 stop
$467Lufthansa
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
2:17 pm - 11:15 am
SEA
-
VLC
35h 58m
2 stops
British Airways Logo
5:10 pm - 5:55 pm
VLC
-
SEA
32h 45m
1 stop
$473British Airways
Mon, Mar 2 - Tue, Mar 17
British Airways Logo
1:37 pm - 11:30 am
SEA
-
AGP
36h 53m
2 stops
British Airways Logo
5:50 pm - 5:55 pm
AGP
-
SEA
32h 05m
1 stop
$474British Airways
Tue, Apr 21 - Tue, Apr 28
KLM Logo
5:30 pm - 8:20 am
SEA
-
PMI
29h 50m
1 stop
KLM Logo
3:45 pm - 4:30 pm
PMI
-
SEA
33h 45m
1 stop
$477KLM
Wed, Apr 15 - Wed, Apr 22
KLM Logo
5:30 pm - 7:55 pm
SEA
-
VLC
17h 25m
1 stop
KLM Logo
9:45 am - 4:30 pm
VLC
-
SEA
15h 45m
1 stop
$478KLM
Fri, Feb 27 - Fri, Mar 6
Delta Logo
11:20 am - 4:10 pm
SEA
-
VLC
19h 50m
2 stops
Delta Logo
6:00 am - 11:35 am
VLC
-
SEA
14h 35m
1 stop
$485Delta
Tue, Mar 3 - Tue, Mar 24
Delta Logo
6:15 am - 9:15 am
SEA
-
MAD
18h 00m
1 stop
Delta Logo
6:00 am - 10:10 pm
MAD
-
SEA
24h 10m
2 stops
$495Delta
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 $878 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 $878.

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 $584 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,149 and $1,141 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 2 weeks before departure, which saves you about 5% 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$248
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 3% increase in price.
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 8128 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Flight was on time, staff are friendly and helpful onboard.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

The service was great. However the lounge only gets passing grade

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 professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

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.

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!!

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.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

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

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

The plane was dirty the food was awful and the boarding process took too long

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

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.

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

Information on your arrival and departure airports