$280 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 5/10. 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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Cheap Flights from Seattle to Spain

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Madrid
Madrid1 stop$758
Málaga
Málaga1 stop$725
Ibiza
Ibiza1 stop$727
Valencia
Valencia1 stop$727
Seville
Seville2 stops$733
Bilbao
Bilbao1 stop$707
Alicante
Alicante2 stops$669
Granada
Granada2 stops$1,037
San Sebastian
San Sebastian2 stops$875
Mahón
Mahón2 stops$1,029
Oviedo
Oviedo2 stops$1,341
Vigo
Vigo3 stops$1,365
A Coruña
A Coruña2 stops$1,110
Arrecife
Arrecife2 stops$1,240
Madrid
Madrid1 stop$758
Málaga
Málaga1 stop$725
Ibiza
Ibiza1 stop$727
Valencia
Valencia1 stop$727
Seville
Seville2 stops$733
Bilbao
Bilbao1 stop$707
Alicante
Alicante2 stops$669
Granada
Granada2 stops$1,037
San Sebastian
San Sebastian2 stops$875
Mahón
Mahón2 stops$1,029
Oviedo
Oviedo2 stops$1,341
Vigo
Vigo3 stops$1,365
A Coruña
A Coruña2 stops$1,110
Arrecife
Arrecife2 stops$1,240

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

dom., sep. 27 - mar., oct. 13
Condor Logo
5:40 pm - 7:30 pm
SEA
-
PMI
16h 50m
1 stop
Condor Logo
10:25 am - 3:40 pm
PMI
-
SEA
14h 15m
1 stop
$653Condor
dom., oct. 11 - dom., oct. 18
Condor Logo
5:40 pm - 7:30 pm
SEA
-
PMI
16h 50m
1 stop
Condor Logo
6:30 am - 3:40 pm
PMI
-
SEA
18h 10m
1 stop
$655Condor
mar., oct. 13 - mié., oct. 21
Lufthansa Logo
6:50 pm - 11:25 pm
SEA
-
BIO
19h 35m
1 stop
Lufthansa Logo
6:50 am - 12:20 pm
BIO
-
SEA
14h 30m
1 stop
$721Lufthansa
dom., oct. 11 - mié., oct. 14
British Airways Logo
8:20 pm - 7:35 pm
SEA
-
VLC
14h 15m
1 stop
British Airways Logo
8:20 pm - 11:35 am
VLC
-
SEA
24h 15m
1 stop
$727British Airways
dom., oct. 11 - jue., oct. 22
Delta Logo
1:30 pm - 6:40 pm
SEA
-
AGP
20h 10m
1 stop
Delta Logo
5:25 pm - 11:52 am
AGP
-
SEA
27h 27m
1 stop
$728Delta
mar., oct. 13 - jue., oct. 22
Delta Logo
6:40 pm - 11:45 am
SEA
-
AGP
32h 05m
1 stop
Delta Logo
5:25 pm - 4:39 pm
AGP
-
SEA
32h 14m
1 stop
$729Delta
dom., oct. 11 - mié., oct. 14
British Airways Logo
8:20 pm - 12:05 pm
SEA
-
VLC
30h 45m
1 stop
British Airways Logo
8:20 pm - 11:35 am
VLC
-
SEA
24h 15m
1 stop
$732British Airways
mar., oct. 6 - lun., oct. 12
KLM Logo
5:40 pm - 7:10 pm
SEA
-
AGP
16h 30m
1 stop
KLM Logo
11:40 pm - 11:52 am
AGP
-
SEA
21h 12m
1 stop
$733KLM
mar., ago. 11 - vie., ago. 21
Lufthansa Logo
2:10 pm - 10:55 pm
SEA
-
VLC
23h 45m
1 stop
Lufthansa Logo
11:50 am - 4:59 pm
VLC
-
SEA
14h 09m
1 stop
$763Lufthansa
lun., ago. 24 - mié., sep. 9
KLM Logo
1:50 pm - 8:40 pm
SEA
-
ALC
21h 50m
1 stop
KLM Logo
10:15 pm - 4:35 pm
ALC
-
SEA
27h 20m
1 stop
$763KLM
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 $970 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 $970.

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 February, when tickets cost $264 (return) on average. On the other hand, the most expensive months are May and April, when the average cost of round-trip tickets is $3,364 and $1,345 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 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$275
Best time to beat the crowds with an average 29% 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 8463 reviews
7.8Entertainment
8.1Boarding
8.5Crew
7.9Comfort
7.2Food
Airline reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

8.0 ExcellentMatthew, May 2026
OKC - ATL
Read more Delta reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

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!

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Catastrophic experience the gate selected customers were picked up to.pay 70 eur for overweight 1-2 kg. While some others were let to board without chcking their carry on bags. Unecessaey drama by Lufthansa that brings nothing just hating them by customers.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

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

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

1st class seats NOT REALLY 1st class or business class but like premier economy. Should be listed as such or named something else. I have flown 1st class with other airlines and they are nothing like it at all.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Wonderful business class flight in a lovely new plane with an excellent crew

BA code for a Vueling flight. All god but the temperature in the plane (too hot when engine not running but otherwise ok)

Food options limited and quality wasn’t very good. I was I was in premium economy and the people in front of me pushed their seats back to fully reclined position which made it difficult for me. My seat wouldn’t recline at all. I suggest that BA restrict the recliner more. Also, the audio in my headset didn’t work unless I held it in all the time. Entertainment choices were good. Customer services is excellent. Thank you to BA team.

The luggage problem I previously mentioned was actually this flight

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

My flight was delayed twice. It finally left 24 hours later. In addition there were conflicting messages between kayak and condor that made the experience worse.

Upgraded to premium economy at the gate. Well worth it!

The flight was canceled and airlines did nothing to accommodate the passengers. After few hours they booked me randomly on a flight that had long layover and didn’t provide any compensation or effort to help. The crew was rude, no representation on the airport. Everything needs to be on call and agents there had no knowledge or control. For everything, they were like we can’t do it and you need to file a claim later. That was not helpful at all and will not make my travel experience any easier. Very disappointed in their service.

Great plane and flight attendants. The person next to me had a DISGUSTING smelling mouth and breath, so that was nasty to deal with the whole flight. Brush your teeth, people! Condor was amazing, though :-)

It would be nice to have a cleaner facility, it was hard to access it. It was always full of people working in that space. The covers and especially the matt of bad quality and old. Many times reused. I would not use it. Food: the bread rolls were old, and food had strange choices. Chicken was terrible.

There was some nice staff when I entered and left, but the thrre flight attendants who served us were very brusque and rude. I have celiac and when I checked in, I tried to find the option to make sure my meals (stick on a 10+ hour flight after a 3 hour flight and short layover) were gluten free because I didn’t have time to get anything. Couldn’t find the selection for it, and every part of the meal and purchase options were gluten, so I didn’t get to eat. During check in the allergies section should be easy to identify and check so this doesn’t happen. Having more options for gluten free at this time should be easy.

Internet was advertised in-flight but not accessible. The foot rest in premium economy was stuck. For both nobody I asked was able to provide an answer/solution. However, this will not stop me from booking premium economy again, which I upgraded from my initial economy I had booked for my outbound flight YYZ to FRA.

Great flight, nice options for food and beverages. Fairly comfortable seats for a large person

Business class: or fist class: Seating absolutely terrible, same seats as everyone else , no space, we could not fit our knees in. I was sitting sideways since nobody else booked this business class. I wish we would have an option to select a business class for the main journey between USA and Europe, but regular class for the short flights in Europe.

The seating was exactly same as the rest of the plane. We had no space for our knees. In fact it was the tightest spacing of the seats I ever flew with, on a very old plane. (and we flew all over Asia and Europe) The same chairs. We were the only passengers in business or first class. Obviously funny.... The only difference was, we got a sendwich and we were offered a drink. Rest of the plane got a bottle of water.

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

Information on your arrival and departure airports