Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Spain from $262

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Spain departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Spain

Cheap round-trip flights

Icelandair Logo
3:45 pm - 2:45 pmSEA-BCN
14h 00m1 stop
Icelandair Logo
3:45 pm - 8:40 pmBCN-SEA
13h 55m1 stop
$449Icelandair
Find Deal
Sun, Oct 12 - Wed, Oct 22
Icelandair Logo
7:00 pm - 2:45 pmSEA-BCN
34h 45m1 stop
Icelandair Logo
3:45 pm - 8:40 pmBCN-SEA
13h 55m1 stop
$451Icelandair
Find Deal
Sat, Oct 11 - Wed, Oct 22
British Airways Logo
6:50 pm - 10:30 pmSEA-BCN
18h 40m1 stop
British Airways Logo
12:30 pm - 9:50 pmBCN-SEA
18h 20m1 stop
$496British Airways
Find Deal
Mon, Dec 1 - Tue, Dec 16
British Airways Logo
10:09 am - 10:10 amSEA-BCN
15h 01m1 stop
British Airways Logo
10:45 am - 12:27 amBCN-SEA
22h 42m1 stop
$499British Airways
Find Deal
Wed, Oct 1 - Wed, Oct 8
Lufthansa Logo
2:20 pm - 10:25 pmSEA-MAD
23h 05m2 stops
Lufthansa Logo
6:00 am - 2:16 pmMAD-SEA
17h 16m2 stops
$540Lufthansa
Find Deal
Mon, Oct 6 - Wed, Oct 22
Delta Logo
9:59 pm - 8:00 amSEA-MAD
26h 01m1 stop
Delta Logo
12:35 pm - 1:20 pmMAD-SEA
33h 45m1 stop
$541Delta
Find Deal
Sat, Nov 1 - Tue, Nov 18
Lufthansa Logo
6:50 pm - 5:35 pmSEA-MAD
13h 45m1 stop
Lufthansa Logo
11:45 am - 4:59 pmMAD-SEA
14h 14m1 stop
$542Lufthansa
Find Deal
Fri, Oct 10 - Fri, Oct 17
Delta Logo
1:30 pm - 4:45 pmSEA-MAD
18h 15m1 stop
Delta Logo
12:40 pm - 10:22 pmMAD-SEA
18h 42m1 stop
$572Delta
Find Deal
Thu, Oct 9 - Thu, Oct 16
KLM Logo
6:35 pm - 10:25 amSEA-BIO
30h 50m1 stop
KLM Logo
6:50 am - 4:05 pmBIO-SEA
18h 15m1 stop
$591KLM
Find Deal
Wed, Oct 1 - Fri, Oct 10
KLM Logo
6:35 pm - 10:25 amSEA-BIO
30h 50m1 stop
KLM Logo
6:50 am - 11:50 amBIO-SEA
14h 00m1 stop
$656KLM
Find Deal
Wed, Oct 1 - Fri, Oct 10

United Airlines flights from Seattle to Spain

Our best United Airlines deals on Seattle to Spain flight tickets
United Airlines
Oct 5
SEA7:15 amSeattle/Tacoma Intl
14h 25m
1 stop
MAD6:40 amMadrid Barajas
Oct 11
MAD8:35 amMadrid Barajas
36h 20m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$538
Find similar
United Airlines
Nov 26
SEA7:00 amSeattle/Tacoma Intl
24h 00m
2 stops
MAD4:00 pmMadrid Barajas
Dec 8
MAD1:35 pmMadrid Barajas
41h 53m
2 stops
SEA10:28 pmSeattle/Tacoma Intl
$539
Find similar
United Airlines
Oct 16
SEA7:30 amSeattle/Tacoma Intl
15h 50m
1 stop
MAD8:20 amMadrid Barajas
Nov 10
MAD1:45 pmMadrid Barajas
31h 25m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$553
Find similar

Lufthansa flights from Seattle to Spain

Our best Lufthansa deals on Seattle to Spain flight tickets
Lufthansa
Oct 6
SEA2:20 pmSeattle/Tacoma Intl
23h 05m
2 stops
MAD10:25 pmMadrid Barajas
Oct 22
MAD6:00 amMadrid Barajas
17h 16m
2 stops
SEA2:16 pmSeattle/Tacoma Intl
$540
Find similar
Lufthansa
Oct 10
SEA6:50 pmSeattle/Tacoma Intl
13h 45m
1 stop
MAD5:35 pmMadrid Barajas
Oct 17
MAD11:45 amMadrid Barajas
14h 14m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$542
Find similar
Lufthansa
Nov 12
SEA3:10 pmSeattle/Tacoma Intl
23h 25m
1 stop
MAD11:35 pmMadrid Barajas
Nov 18
MAD12:00 pmMadrid Barajas
19h 45m
2 stops
SEA10:45 pmSeattle/Tacoma Intl
$543
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Spain that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Seattle to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 10/12

3:45 pm-2:45 pm

1 stop14h 00m

Barcelona-El Prat

Wed 10/22

3:45 pm-8:40 pm

1 stop13h 55m

$449

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 10/11

7:00 pm-2:45 pm

1 stop34h 45m

Barcelona-El Prat

Wed 10/22

3:45 pm-8:40 pm

1 stop13h 55m

$451

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 12/1

6:50 pm-10:30 pm

1 stop18h 40m

Barcelona-El Prat

Tue 12/16

12:30 pm-9:50 pm

1 stop18h 20m

$496

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 10/1

10:09 am-10:10 am

1 stop15h 01m

Barcelona-El Prat

Wed 10/8

10:45 am-12:27 am

1 stop22h 42m

$499

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Mon 10/6

2:20 pm-10:25 pm

2 stops23h 05m

Madrid Barajas

Wed 10/22

6:00 am-2:16 pm

2 stops17h 16m

$540

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Sat 11/1

9:59 pm-8:00 am

1 stop26h 01m

Madrid Barajas

Tue 11/18

12:35 pm-1:20 pm

1 stop33h 45m

$541

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Fri 10/10

6:50 pm-5:35 pm

1 stop13h 45m

Madrid Barajas

Fri 10/17

11:45 am-4:59 pm

1 stop14h 14m

$542

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Thu 10/9

1:30 pm-4:45 pm

1 stop18h 15m

Madrid Barajas

Thu 10/16

12:40 pm-10:22 pm

1 stop18h 42m

$572

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/1

6:35 pm-10:25 am

1 stop30h 50m

Bilbao

Fri 10/10

6:50 am-4:05 pm

1 stop18h 15m

$591

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 10/1

6:35 pm-10:25 am

1 stop30h 50m

Bilbao

Fri 10/10

6:50 am-11:50 am

1 stop14h 00m

$656

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Spain from

How to get the cheapest flight ticket from Seattle to Spain

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Spain?

If you don’t want to visit Spain in November, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $669.

What is the cheapest day to depart on your flight to Spain?

The cheapest day to depart from Seattle to Spain is on a Monday when prices can be found for as low as $862. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Spain for around $986.

What is the cheapest time of day to depart on your flight to Spain?

Flying to Spain from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $888 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Spain is in the afternoon when prices are around $1,924.

What is the cheapest Seattle/Tacoma Intl to Spain flight route?

Fly from Seattle/Tacoma Intl to Barcelona-El Prat for the best Seattle/Tacoma Intl - Spain flight prices

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

You are more likely to see cheaper flights to Spain from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Spain for around $845 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Spain from Seattle for as low as $712 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Spain flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Spain flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Spain flights?

You could potentially save up to 38% on your flight if you consider stops on a Seattle to Spain flight.

Cheap Seattle to Spain flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Spain

Direct flights

None
There are no direct flights from Seattle to Spain. There are no popular flight routes from Seattle to Spain.
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Spain?

    Prices for flights from Seattle/Tacoma Intl Airport to Spain refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Spain?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Spain?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Spain.

  • What documentation or ID do you need to fly to Spain?

    The travel and health documents required for your trip to Spain can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Spain. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Spain?

Best airlines flying from Seattle to Spain

Compare and see reviews for airlines that fly from Seattle to Spain with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $360Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
IcelandairPriceFrom $388Free CancellationRating
7.0
544 reviews
Search Icelandair flights
Aer LingusPriceFrom $438Free CancellationRating
7.2
1,274 reviews
Search Aer Lingus flights
Scandinavian AirlinesPriceFrom $465Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
British AirwaysPriceFrom $484Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
United AirlinesPriceFrom $501Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
IberiaPriceFrom $507Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
American AirlinesPriceFrom $518Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $567Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Spain?

It is quick and easy to find Seattle to Spain flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Spain that suits you.

Can I find flights from Seattle to Spain with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Spain flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Spain?

momondo provides multiple filters to help you find the best flight to Spain from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Spain right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Spain flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Spain trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/16
Thu 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo
Flights to Barcelonafrom $281
Flights to Madridfrom $315
Flights to Málagafrom $356
Flights to Palma de Mallorcafrom $351
Flights to Alicantefrom $366
Flights to Valenciafrom $330
Flights to Ibizafrom $348
Flights to Las Palmas de Gran Canariafrom $392
Flights to Sevillefrom $406
Flights to Santa Cruz de Tenerifefrom $426
Flights to Bilbaofrom $354
Flights to Puerto del Rosariofrom $450