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Cheap flights from Seattle to Barcelona from $372

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 6/8. 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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Find the cheapest flights from Seattle to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
3:55 pm - 9:45 am
SEA
-
BCN
32h 50m
1 stop
Scandinavian Airlines Logo
10:25 am - 1:45 pm
BCN
-
SEA
36h 20m
1 stop
$508Scandinavian Airlines
Sat, Sep 5 - Fri, Sep 18
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
$538Scandinavian Airlines
Sat, Sep 5 - Sat, Sep 19
Scandinavian Airlines Logo
3:55 pm - 9:45 am
SEA
-
BCN
32h 50m
2 stops
Scandinavian Airlines Logo
10:35 am - 1:45 pm
BCN
-
SEA
36h 10m
1 stop
$551Scandinavian Airlines
Fri, Sep 4 - Mon, Sep 14
Multiple Airlines Logo
7:00 pm - 10:55 pm
SEA
-
BCN
18h 55m
2 stops
Multiple Airlines Logo
3:00 pm - 9:40 am
BCN
-
SEA
27h 40m
1 stop
$562Multiple Airlines
Fri, May 1 - Wed, May 13
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
$566Scandinavian Airlines
Fri, Sep 18 - Thu, Oct 1
Scandinavian Airlines Logo
3:55 pm - 9:45 am
SEA
-
BCN
32h 50m
1 stop
Scandinavian Airlines Logo
10:25 am - 10:17 pm
BCN
-
SEA
20h 52m
2 stops
$570Scandinavian Airlines
Sat, Sep 5 - Fri, Sep 18
Scandinavian Airlines Logo
3:55 pm - 8:55 am
SEA
-
BCN
32h 00m
1 stop
Scandinavian Airlines Logo
7:00 pm - 1:45 pm
BCN
-
SEA
27h 45m
1 stop
$571Scandinavian Airlines
Fri, Sep 18 - Sat, Sep 26
Iberia Logo
8:20 pm - 9:55 am
SEA
-
REU
52h 35m
2 stops
Iberia Logo
9:15 am - 11:35 am
REU
-
SEA
35h 20m
2 stops
$2,225Iberia
Wed, Aug 12 - Tue, Aug 25
Iberia Logo
8:20 pm - 9:55 am
SEA
-
REU
52h 35m
2 stops
Iberia Logo
10:25 am - 11:35 am
REU
-
SEA
34h 10m
2 stops
$2,311Iberia
Wed, Aug 12 - Sat, Aug 22
Iberia Logo
8:20 pm - 8:45 am
SEA
-
REU
51h 25m
2 stops
Iberia Logo
9:15 am - 11:35 am
REU
-
SEA
35h 20m
2 stops
$2,348Iberia
Sat, Aug 8 - Tue, Aug 25

Turkish Airlines flights from Seattle to Barcelona

Our best Turkish Airlines deals on Seattle to Barcelona flight tickets
Turkish Airlines
Sep 14
SEA7:10 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN11:15 pmBarcelona-El Prat
Sep 24
BCN7:40 amBarcelona-El Prat
18h 35m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$634
Turkish Airlines
Apr 22
SEA7:10 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN11:15 pmBarcelona-El Prat
May 6
BCN7:40 amBarcelona-El Prat
18h 35m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$636
Turkish Airlines
Apr 15
SEA7:10 pmSeattle/Tacoma Intl
30h 35m
1 stop
BCN10:45 amBarcelona-El Prat
Apr 23
BCN7:05 pmBarcelona-El Prat
31h 10m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$637

Condor flights from Seattle to Barcelona

Our best Condor deals on Seattle to Barcelona flight tickets
Condor
Aug 11
SEA6:05 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN10:10 pmBarcelona-El Prat
Aug 26
BCN8:00 amBarcelona-El Prat
16h 40m
1 stop
SEA3:40 pmSeattle/Tacoma Intl
$612
Condor
Aug 11
SEA6:05 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN10:10 pmBarcelona-El Prat
Aug 26
BCN8:00 amBarcelona-El Prat
16h 40m
1 stop
SEA3:40 pmSeattle/Tacoma Intl
$614
Condor
May 3
SEA5:40 pmSeattle/Tacoma Intl
19h 30m
1 stop
BCN10:10 pmBarcelona-El Prat
May 13
BCN8:00 amBarcelona-El Prat
16h 40m
1 stop
SEA3:40 pmSeattle/Tacoma Intl
$618

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 22, 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

Sat 9/5

3:55 pm-9:45 am

1 stop32h 50m

Barcelona-El Prat

Fri 9/18

10:25 am-1:45 pm

1 stop36h 20m

$508

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/5

3:55 pm-9:45 am

1 stop32h 50m

Barcelona-El Prat

Sat 9/19

7:00 pm-1:45 pm

1 stop27h 45m

$538

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 9/4

3:55 pm-9:45 am

2 stops32h 50m

Barcelona-El Prat

Mon 9/14

10:35 am-1:45 pm

1 stop36h 10m

$551
Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 5/1

7:00 pm-10:55 pm

2 stops18h 55m

Barcelona-El Prat

Wed 5/13

3:00 pm-9:40 am

1 stop27h 40m

$562

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-8:55 am

1 stop32h 00m

Barcelona-El Prat

Thu 10/1

12:25 pm-1:45 pm

1 stop34h 20m

$566

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/5

3:55 pm-9:45 am

1 stop32h 50m

Barcelona-El Prat

Fri 9/18

10:25 am-10:17 pm

2 stops20h 52m

$570

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-8:55 am

1 stop32h 00m

Barcelona-El Prat

Sat 9/26

7:00 pm-1:45 pm

1 stop27h 45m

$571

SeattleReus

SEA - REU

SEAREU

Seattle/Tacoma Intl

Wed 8/12

8:20 pm-9:55 am

2 stops52h 35m

Reus

Tue 8/25

9:15 am-11:35 am

2 stops35h 20m

$2,225

SeattleReus

SEA - REU

SEAREU

Seattle/Tacoma Intl

Wed 8/12

8:20 pm-9:55 am

2 stops52h 35m

Reus

Sat 8/22

10:25 am-11:35 am

2 stops34h 10m

$2,311

SeattleReus

SEA - REU

SEAREU

Seattle/Tacoma Intl

Sat 8/8

8:20 pm-8:45 am

2 stops51h 25m

Reus

Tue 8/25

9:15 am-11:35 am

2 stops35h 20m

$2,348

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 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
625 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $461Free CancellationRating
7.3
1,721 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $482Free CancellationRating
6.8
7,862 reviews
Search Lufthansa flights
United AirlinesPriceFrom $482Free CancellationRating
7.4
9,460 reviews
Search United Airlines flights
Air CanadaPriceFrom $484Free CancellationRating
7.1
10,834 reviews
Search Air Canada flights
DeltaPriceFrom $486Free CancellationRating
7.9
8,319 reviews
Search Delta flights
Aer LingusPriceFrom $488Free CancellationRating
7.2
1,482 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $491Free CancellationRating
6.7
7,813 reviews
Search British Airways flights
American AirlinesPriceFrom $502Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights
CondorPriceFrom $581Free CancellationRating
6.5
401 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