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Cheap flights from Seattle to Barcelona from $328

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 11/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:35 pm - 9:30 pmSEA-BCN
21h 55m2 stops
Multiple Airlines Logo
5:45 am - 5:00 pmBCN-SEA
20h 15m2 stops
$458Multiple Airlines
Find Deal
mar., nov. 11 - mar., nov. 18
Multiple Airlines Logo
2:35 pm - 12:25 amSEA-BCN
24h 50m2 stops
Multiple Airlines Logo
5:45 am - 5:00 pmBCN-SEA
20h 15m2 stops
$505Multiple Airlines
Find Deal
mié., nov. 12 - mié., nov. 19
Multiple Airlines Logo
2:35 pm - 4:20 pmSEA-BCN
16h 45m2 stops
Multiple Airlines Logo
8:00 am - 5:00 pmBCN-SEA
18h 00m2 stops
$507Multiple Airlines
Find Deal
dom., nov. 9 - vie., nov. 14
Aer Lingus Logo
8:05 pm - 8:25 pmSEA-BCN
15h 20m1 stop
Aer Lingus Logo
11:30 am - 6:20 pmBCN-SEA
15h 50m1 stop
$510Aer Lingus
Find Deal
mié., dic. 10 - mié., dic. 17
Aer Lingus Logo
8:05 pm - 8:25 pmSEA-BCN
15h 20m1 stop
Aer Lingus Logo
11:30 am - 6:20 pmBCN-SEA
15h 50m1 stop
$547Aer Lingus
Find Deal
mié., nov. 12 - mié., nov. 19
Scandinavian Airlines Logo
7:10 am - 6:20 pmSEA-BCN
26h 10m2 stops
Scandinavian Airlines Logo
7:10 pm - 10:59 pmBCN-SEA
36h 49m2 stops
$550Scandinavian Airlines
Find Deal
dom., nov. 9 - mié., nov. 26
Scandinavian Airlines Logo
7:20 am - 6:20 pmSEA-BCN
26h 00m2 stops
Scandinavian Airlines Logo
7:10 pm - 6:56 pmBCN-SEA
32h 46m2 stops
$568Scandinavian Airlines
Find Deal
dom., feb. 1 - vie., feb. 6
Turkish Airlines Logo
8:00 pm - 12:10 amSEA-BCN
20h 10m1 stop
Turkish Airlines Logo
6:35 pm - 5:15 pmBCN-SEA
31h 40m1 stop
$608Turkish Airlines
Find Deal
jue., mar. 19 - mar., mar. 31
Turkish Airlines Logo
7:00 pm - 12:10 amSEA-BCN
20h 10m1 stop
Turkish Airlines Logo
12:05 pm - 5:05 pmBCN-SEA
38h 00m1 stop
$618Turkish Airlines
Find Deal
jue., nov. 6 - mar., nov. 11
Icelandair Logo
2:35 pm - 1:20 pmSEA-BCN
13h 45m1 stop
Icelandair Logo
11:50 am - 5:00 pmBCN-SEA
14h 10m1 stop
$635Icelandair
Find Deal
dom., feb. 1 - vie., feb. 6

Turkish Airlines flights from Seattle to Barcelona

Our best Turkish Airlines deals on Seattle to Barcelona flight tickets
Turkish Airlines
Mar 19
SEA8:00 pmSeattle/Tacoma Intl
20h 10m
1 stop
BCN12:10 amBarcelona-El Prat
Mar 31
BCN6:35 pmBarcelona-El Prat
31h 40m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$608
Find similar
Turkish Airlines
Nov 6
SEA7:00 pmSeattle/Tacoma Intl
20h 10m
1 stop
BCN12:10 amBarcelona-El Prat
Nov 11
BCN12:05 pmBarcelona-El Prat
38h 00m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$618
Find similar
Turkish Airlines
Oct 21
SEA12:30 pmSeattle/Tacoma Intl
37h 05m
1 stop
BCN10:35 amBarcelona-El Prat
Nov 7
BCN12:10 pmBarcelona-El Prat
37h 55m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$4,916
Find similar

Aer Lingus flights from Seattle to Barcelona

Our best Aer Lingus deals on Seattle to Barcelona flight tickets
Aer Lingus
Dec 10
SEA8:05 pmSeattle/Tacoma Intl
15h 20m
1 stop
BCN8:25 pmBarcelona-El Prat
Dec 17
BCN11:30 amBarcelona-El Prat
15h 50m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
$510
Find similar
Aer Lingus
Nov 12
SEA8:05 pmSeattle/Tacoma Intl
15h 20m
1 stop
BCN8:25 pmBarcelona-El Prat
Nov 19
BCN11:30 amBarcelona-El Prat
15h 50m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
$547
Find similar
Aer Lingus
Nov 9
SEA8:05 pmSeattle/Tacoma Intl
15h 20m
1 stop
BCN8:25 pmBarcelona-El Prat
Nov 17
BCN11:30 amBarcelona-El Prat
15h 50m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
$565
Find similar

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 octubre 16, 2025.
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

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

mar. 11/11

2:35 pm-9:30 pm

2 stops21h 55m

Barcelona-El Prat

mar. 11/18

5:45 am-5:00 pm

2 stops20h 15m

$458

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

mié. 11/12

2:35 pm-12:25 am

2 stops24h 50m

Barcelona-El Prat

mié. 11/19

5:45 am-5:00 pm

2 stops20h 15m

$505

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

dom. 11/9

2:35 pm-4:20 pm

2 stops16h 45m

Barcelona-El Prat

vie. 11/14

8:00 am-5:00 pm

2 stops18h 00m

$507

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

mié. 12/10

8:05 pm-8:25 pm

1 stop15h 20m

Barcelona-El Prat

mié. 12/17

11:30 am-6:20 pm

1 stop15h 50m

$510

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

mié. 11/12

8:05 pm-8:25 pm

1 stop15h 20m

Barcelona-El Prat

mié. 11/19

11:30 am-6:20 pm

1 stop15h 50m

$547

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

dom. 11/9

7:10 am-6:20 pm

2 stops26h 10m

Barcelona-El Prat

mié. 11/26

7:10 pm-10:59 pm

2 stops36h 49m

$550

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

dom. 2/1

7:20 am-6:20 pm

2 stops26h 00m

Barcelona-El Prat

vie. 2/6

7:10 pm-6:56 pm

2 stops32h 46m

$568

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

jue. 3/19

8:00 pm-12:10 am

1 stop20h 10m

Barcelona-El Prat

mar. 3/31

6:35 pm-5:15 pm

1 stop31h 40m

$608

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

jue. 11/6

7:00 pm-12:10 am

1 stop20h 10m

Barcelona-El Prat

mar. 11/11

12:05 pm-5:05 pm

1 stop38h 00m

$618

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

dom. 2/1

2:35 pm-1:20 pm

1 stop13h 45m

Barcelona-El Prat

vie. 2/6

11:50 am-5:00 pm

1 stop14h 10m

$635

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 November is, on average, the cheapest month to fly to Barcelona from Seattle, with most prices found around $667. If you don’t want to visit Barcelona in November, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $673.

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

The cheapest day to depart from Seattle to Barcelona is on a Sunday when prices can be found for as low as $876. On the other hand, Tuesday 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 $2,579.

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

In the evening is the cheapest time of day to fly from Seattle to Barcelona when you can find flight prices for as low as $888. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,198 on average. Flights to Barcelona from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $846 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 $714 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

Direct flights

None
There are no direct flights from Seattle to Barcelona. There are no popular flight routes from Seattle to Barcelona.
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 13h 45m.

  • 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 $389Free CancellationRating
7.0
556 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $465Free CancellationRating
7.4
1,533 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,307 reviews
Search Air Canada flights
United AirlinesPriceFrom $497Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
Aer LingusPriceFrom $498Free CancellationRating
7.2
1,341 reviews
Search Aer Lingus flights
IberiaPriceFrom $507Free CancellationRating
7.0
2,994 reviews
Search Iberia flights
British AirwaysPriceFrom $552Free CancellationRating
6.7
7,457 reviews
Search British Airways flights
LufthansaPriceFrom $563Free CancellationRating
6.8
7,497 reviews
Search Lufthansa flights
KLMPriceFrom $574Free CancellationRating
7.7
1,404 reviews
Search KLM flights
American AirlinesPriceFrom $590Free CancellationRating
7.2
11,040 reviews
Search American Airlines 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