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Cheap flights from Seattle to Spain from $253

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 1/30. 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

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Find the cheapest flights from Seattle to Spain

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
2:35 pm - 1:15 pm
SEA
-
BCN
13h 40m1 stop
Icelandair Logo
11:50 am - 6:00 pm
BCN
-
SEA
14h 10m1 stop
$386Icelandair
Sun, Mar 1 - Tue, Mar 10
Icelandair Logo
2:35 pm - 9:55 pm
SEA
-
ALC
22h 20m1 stop
Icelandair Logo
10:55 pm - 5:00 pm
ALC
-
SEA
27h 05m1 stop
$386Icelandair
Mon, Jan 12 - Tue, Jan 20
Lufthansa Logo
3:10 pm - 5:35 pm
SEA
-
BCN
17h 25m1 stop
Lufthansa Logo
5:50 am - 12:10 pm
BCN
-
SEA
15h 20m1 stop
$437Lufthansa
Fri, Feb 6 - Sat, Feb 14
Lufthansa Logo
3:10 pm - 5:35 pm
SEA
-
BCN
17h 25m1 stop
Lufthansa Logo
7:40 am - 1:20 pm
BCN
-
SEA
14h 40m1 stop
$439Lufthansa
Fri, Feb 6 - Wed, Feb 11
KLM Logo
7:40 am - 12:40 pm
SEA
-
ALC
20h 00m2 stops
KLM Logo
10:20 am - 11:40 am
ALC
-
SEA
34h 20m1 stop
$455KLM
Thu, Jan 29 - Thu, Feb 5
KLM Logo
3:10 pm - 9:25 am
SEA
-
ALC
33h 15m1 stop
KLM Logo
10:20 am - 11:40 am
ALC
-
SEA
34h 20m1 stop
$456KLM
Thu, Jan 29 - Thu, Feb 5
British Airways Logo
1:35 pm - 11:55 am
SEA
-
MAD
13h 20m1 stop
British Airways Logo
1:45 pm - 11:30 pm
MAD
-
SEA
17h 45m1 stop
$471British Airways
Sat, Mar 7 - Mon, Mar 16
British Airways Logo
2:10 pm - 12:15 pm
SEA
-
AGP
37h 05m2 stops
British Airways Logo
7:50 pm - 4:55 pm
AGP
-
SEA
30h 05m1 stop
$471British Airways
Fri, Jan 30 - Fri, Feb 6
Delta Logo
2:10 pm - 5:20 pm
SEA
-
BIO
18h 10m1 stop
Delta Logo
6:50 am - 11:40 am
BIO
-
SEA
13h 50m1 stop
$471Delta
Fri, Jan 30 - Tue, Feb 10
Delta Logo
7:20 am - 11:30 am
SEA
-
BIO
19h 10m2 stops
Delta Logo
6:50 am - 11:40 am
BIO
-
SEA
13h 50m1 stop
$475Delta
Thu, Jan 29 - Fri, Feb 6

British Airways flights from Seattle to Spain

Our best British Airways deals on Seattle to Spain flight tickets
British Airways
Feb 16
SEA6:50 pmSeattle/Tacoma Intl
18h 40m
1 stop
BCN10:30 pmBarcelona-El Prat
Mar 18
BCN10:40 amBarcelona-El Prat
22h 15m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$467
Find similar
British Airways
Mar 7
SEA1:35 pmSeattle/Tacoma Intl
13h 20m
1 stop
MAD11:55 amMadrid Barajas
Mar 16
MAD1:45 pmMadrid Barajas
17h 45m
1 stop
SEA11:30 pmSeattle/Tacoma Intl
$471
Find similar
British Airways
Feb 6
SEA1:35 pmSeattle/Tacoma Intl
13h 20m
1 stop
MAD11:55 amMadrid Barajas
Feb 10
MAD6:05 pmMadrid Barajas
31h 50m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$482
Find similar

United Airlines flights from Seattle to Spain

Our best United Airlines deals on Seattle to Spain flight tickets
United Airlines
Jan 19
SEA7:00 amSeattle/Tacoma Intl
17h 00m
1 stop
BCN9:00 amBarcelona-El Prat
Jan 27
BCN1:35 pmBarcelona-El Prat
35h 26m
2 stops
SEA4:01 pmSeattle/Tacoma Intl
$465
Find similar
United Airlines
Mar 1
SEA5:20 pmSeattle/Tacoma Intl
31h 15m
2 stops
BCN9:35 amBarcelona-El Prat
Mar 10
BCN12:35 pmBarcelona-El Prat
31h 14m
2 stops
SEA11:49 amSeattle/Tacoma Intl
$468
Find similar
United Airlines
Feb 16
SEA11:59 pmSeattle/Tacoma Intl
24h 01m
2 stops
BCN9:00 amBarcelona-El Prat
Mar 18
BCN12:35 pmBarcelona-El Prat
42h 10m
2 stops
SEA10:45 pmSeattle/Tacoma Intl
$469
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 December 18, 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 3/1

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Tue 3/10

11:50 am-6:00 pm

1 stop14h 10m

$386

SeattleAlicante

SEA - ALC

SEAALC

Seattle/Tacoma Intl

Mon 1/12

2:35 pm-9:55 pm

1 stop22h 20m

Alicante

Tue 1/20

10:55 pm-5:00 pm

1 stop27h 05m

$386

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 2/6

3:10 pm-5:35 pm

1 stop17h 25m

Barcelona-El Prat

Sat 2/14

5:50 am-12:10 pm

1 stop15h 20m

$437

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 2/6

3:10 pm-5:35 pm

1 stop17h 25m

Barcelona-El Prat

Wed 2/11

7:40 am-1:20 pm

1 stop14h 40m

$439

SeattleAlicante

SEA - ALC

SEAALC

Seattle/Tacoma Intl

Thu 1/29

7:40 am-12:40 pm

2 stops20h 00m

Alicante

Thu 2/5

10:20 am-11:40 am

1 stop34h 20m

$455

SeattleAlicante

SEA - ALC

SEAALC

Seattle/Tacoma Intl

Thu 1/29

3:10 pm-9:25 am

1 stop33h 15m

Alicante

Thu 2/5

10:20 am-11:40 am

1 stop34h 20m

$456

SeattleMadrid

SEA - MAD

SEAMAD

Seattle/Tacoma Intl

Sat 3/7

1:35 pm-11:55 am

1 stop13h 20m

Madrid Barajas

Mon 3/16

1:45 pm-11:30 pm

1 stop17h 45m

$471

SeattleMálaga

SEA - AGP

SEAAGP

Seattle/Tacoma Intl

Fri 1/30

2:10 pm-12:15 pm

2 stops37h 05m

Malaga

Fri 2/6

7:50 pm-4:55 pm

1 stop30h 05m

$471

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Fri 1/30

2:10 pm-5:20 pm

1 stop18h 10m

Bilbao

Tue 2/10

6:50 am-11:40 am

1 stop13h 50m

$471

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/29

7:20 am-11:30 am

2 stops19h 10m

Bilbao

Fri 2/6

6:50 am-11:40 am

1 stop13h 50m

$475

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 February, then you should wait until January to fly from Seattle, when ticket prices are also cheap, with an average price of $660.

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

The cheapest day to depart from Seattle to Spain is on a Sunday when prices can be found for as low as $876. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Spain for around $2,579.

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 $2,198.

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 $840 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 $716 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 4% 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

Fastest flight time

10h 30m

Direct flights

Wed, Fri and Sun

Airports in Spain

239 airports
The fastest flight from Seattle to Spain takes 10h 30m
Direct flights go from Seattle to Spain on Wednesday, Friday and Sunday. There are no airlines offering direct flights.
There are 239 airports in Spain. From Seattle there are direct flights to Barcelona-El Prat (BCN).
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
2,897 reviews
Search JetBlue flights
IcelandairPriceFrom $367Free CancellationRating
7.0
591 reviews
Search Icelandair flights
Aer LingusPriceFrom $438Free CancellationRating
7.2
1,395 reviews
Search Aer Lingus flights
Scandinavian AirlinesPriceFrom $440Free CancellationRating
7.4
1,607 reviews
Search Scandinavian Airlines flights
Air FrancePriceFrom $468Free CancellationRating
7.4
1,507 reviews
Search Air France flights
United AirlinesPriceFrom $476Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights
DeltaPriceFrom $484Free CancellationRating
7.9
8,005 reviews
Search Delta flights
LufthansaPriceFrom $484Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights
British AirwaysPriceFrom $485Free CancellationRating
6.7
7,585 reviews
Search British Airways 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.

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Find better results for your trip to Spain

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