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Cheap flights from Seattle to Barcelona from $371

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 Barcelona departing on 5/27. 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
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
3:55 pm - 8:55 am
SEA
-
BCN
32h 00m
1 stop
Scandinavian Airlines Logo
12:25 pm - 1:45 pm
BCN
-
SEA
34h 20m
1 stop
$575Scandinavian Airlines
Fri, Sep 18 - Thu, Sep 24
Scandinavian Airlines Logo
3:55 pm - 6:10 pm
SEA
-
BCN
17h 15m
1 stop
Scandinavian Airlines Logo
10:25 am - 1:45 pm
BCN
-
SEA
36h 20m
1 stop
$588Scandinavian Airlines
Tue, Sep 8 - Fri, Sep 18
Scandinavian Airlines Logo
3:55 pm - 6:10 pm
SEA
-
BCN
17h 15m
1 stop
Scandinavian Airlines Logo
10:25 am - 1:45 pm
BCN
-
SEA
36h 20m
1 stop
$591Scandinavian Airlines
Tue, Sep 8 - Fri, Sep 18
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
$596Condor
Tue, Sep 22 - Wed, Oct 14
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
$602Icelandair
Wed, Apr 22 - Wed, Apr 29
Scandinavian Airlines Logo
3:55 pm - 9:45 am
SEA
-
BCN
32h 50m
1 stop
Scandinavian Airlines Logo
7:00 pm - 1:45 pm
BCN
-
SEA
27h 45m
1 stop
$603Scandinavian Airlines
Sat, Sep 19 - Sat, Sep 26
Scandinavian Airlines Logo
3:55 pm - 6:10 pm
SEA
-
BCN
17h 15m
1 stop
Scandinavian Airlines Logo
7:00 pm - 1:45 pm
BCN
-
SEA
27h 45m
1 stop
$604Scandinavian Airlines
Sat, Sep 12 - Sat, Sep 26
Scandinavian Airlines Logo
3:55 pm - 6:10 pm
SEA
-
BCN
17h 15m
1 stop
Scandinavian Airlines Logo
7:00 pm - 1:45 pm
BCN
-
SEA
27h 45m
1 stop
$608Scandinavian Airlines
Sun, Aug 30 - Mon, Sep 7
Scandinavian Airlines Logo
3:55 pm - 6:10 pm
SEA
-
BCN
17h 15m
1 stop
Scandinavian Airlines Logo
12:25 pm - 1:45 pm
BCN
-
SEA
34h 20m
1 stop
$610Scandinavian Airlines
Sat, Sep 12 - Thu, Sep 24
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
$612Condor
Tue, Sep 22 - Wed, Oct 14

Turkish Airlines flights from Seattle to Barcelona

Our best Turkish Airlines deals on Seattle to Barcelona flight tickets
Turkish Airlines
May 3
SEA7:10 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN11:15 pmBarcelona-El Prat
May 13
BCN7:40 amBarcelona-El Prat
18h 35m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$634
Turkish Airlines
Apr 15
SEA7:10 pmSeattle/Tacoma Intl
37h 30m
1 stop
BCN5:40 pmBarcelona-El Prat
Apr 23
BCN7:40 amBarcelona-El Prat
18h 35m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$636
Turkish Airlines
Apr 23
SEA7:10 pmSeattle/Tacoma Intl
30h 35m
1 stop
BCN10:45 amBarcelona-El Prat
Apr 27
BCN2:35 pmBarcelona-El Prat
35h 40m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$643

Icelandair flights from Seattle to Barcelona

Our best Icelandair deals on Seattle to Barcelona flight tickets
Icelandair
Apr 22
SEA3:40 pmSeattle/Tacoma Intl
14h 05m
1 stop
BCN2:45 pmBarcelona-El Prat
Apr 29
BCN3:45 pmBarcelona-El Prat
13h 55m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$602
Icelandair
Apr 22
SEA3:40 pmSeattle/Tacoma Intl
14h 05m
1 stop
BCN2:45 pmBarcelona-El Prat
May 6
BCN3:45 pmBarcelona-El Prat
13h 55m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$615
Icelandair
Apr 24
SEA7:00 pmSeattle/Tacoma Intl
34h 45m
1 stop
BCN2:45 pmBarcelona-El Prat
May 6
BCN3:45 pmBarcelona-El Prat
13h 55m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$617

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona 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 March 27, 2026.
Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-8:55 am

1 stop32h 00m

Barcelona-El Prat

Thu 9/24

12:25 pm-1:45 pm

1 stop34h 20m

$575

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/8

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Fri 9/18

10:25 am-1:45 pm

1 stop36h 20m

$588

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/8

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Fri 9/18

10:25 am-1:45 pm

1 stop36h 20m

$591

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/22

6:05 pm-10:10 pm

1 stop19h 05m

Barcelona-El Prat

Wed 10/14

10:25 am-3:40 pm

1 stop14h 15m

$596
Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 4/22

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Wed 4/29

3:45 pm-8:40 pm

1 stop13h 55m

$602

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-9:45 am

1 stop32h 50m

Barcelona-El Prat

Sat 9/26

7:00 pm-1:45 pm

1 stop27h 45m

$603

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/12

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Sat 9/26

7:00 pm-1:45 pm

1 stop27h 45m

$604

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 8/30

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Mon 9/7

7:00 pm-1:45 pm

1 stop27h 45m

$608

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/12

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Thu 9/24

12:25 pm-1:45 pm

1 stop34h 20m

$610

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/22

6:05 pm-10:10 pm

1 stop19h 05m

Barcelona-El Prat

Wed 10/14

10:25 am-3:40 pm

1 stop14h 15m

$612

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 Barcelona from

How to get the cheapest flight ticket from Seattle to Barcelona

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 typical price of a round-trip flight between Seattle and Barcelona?

What is the cheapest month to fly to Barcelona?

The month of February is, on average, the cheapest month to fly to Barcelona from Seattle, with most prices found around $486. If you don’t want to visit Barcelona in February, then you should wait until January to fly from Seattle, when ticket prices are also cheap, with an average price of $505.

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

The cheapest day to depart from Seattle to Barcelona is on a Friday when prices can be found for as low as $879. On the other hand, Thursday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,471.

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

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

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

You are more likely to see cheaper flights to Barcelona from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $758 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from Seattle for as low as $655 on momondo.

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

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

Cheap Seattle to Barcelona flight deals and tips

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

Fastest flight time

10h 35m

Direct flights

Wed, Fri and Sun

Airports in Barcelona

3 airports
The fastest flight from Seattle to Barcelona takes 10h 35m
Direct flights go from Seattle to Barcelona on Wednesday, Friday and Sunday. There are no airlines offering direct flights.
There are 3 airports in Barcelona. From Seattle there are direct flights to Barcelona-El Prat (BCN).
Search flight deals

  • How far is Seattle/Tacoma Intl to Barcelona by plane?

    A flight from Seattle/Tacoma Intl to Barcelona will travel around 5410.7 mi. A reasonable flight in good conditions will take 10h 35m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Barcelona are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Barcelona.

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

    The required travel and health documents for your Barcelona trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Seattle to Barcelona

Compare and see reviews for airlines that fly from Seattle to Barcelona with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $367Free CancellationRating
7.0
627 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $461Free CancellationRating
7.3
1,725 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $482Free CancellationRating
6.8
7,871 reviews
Search Lufthansa flights
United AirlinesPriceFrom $482Free CancellationRating
7.4
9,500 reviews
Search United Airlines flights
Air CanadaPriceFrom $484Free CancellationRating
7.1
10,853 reviews
Search Air Canada flights
DeltaPriceFrom $486Free CancellationRating
7.9
8,353 reviews
Search Delta flights
Aer LingusPriceFrom $488Free CancellationRating
7.2
1,491 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $491Free CancellationRating
6.7
7,825 reviews
Search British Airways flights
American AirlinesPriceFrom $502Free CancellationRating
7.1
11,519 reviews
Search American Airlines flights
CondorPriceFrom $581Free CancellationRating
6.5
404 reviews
Search Condor flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Barcelona from Seattle.

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

All flight searches from Seattle to Barcelona on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Seattle to Barcelona flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Seattle to Barcelona now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Barcelona and let you know when they change.

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Find better results for your trip to Spain

Fly into one of these airports located in Barcelona

Airports listed have a maximum distance of 46.7 mi from Barcelona
Barcelona-El Prat Airport
Girona Costa Brava Airport