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Cheap flights from Seattle to Barcelona from C$ 532

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 1/11. 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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Find the cheapest flights from Seattle to Barcelona (SEA-BCN)

Cheap round-trip flights

Scandinavian Airlines Logo
4:20 p.m. - 10:40 a.m.SEA-BCN
33h 20m2 stops
Scandinavian Airlines Logo
7:00 p.m. - 8:50 p.m.BCN-SEA
34h 50m2 stops
C$ 846Scandinavian Airlines
Find Deal
Fri, 10 Oct - Mon, 13 Oct
Scandinavian Airlines Logo
2:10 p.m. - 8:50 a.m.SEA-BCN
33h 40m2 stops
Scandinavian Airlines Logo
7:00 p.m. - 2:00 p.m.BCN-SEA
28h 00m1 stop
C$ 864Scandinavian Airlines
Find Deal
Thu, 9 Oct - Tue, 21 Oct
Scandinavian Airlines Logo
12:45 p.m. - 9:35 a.m.SEA-BCN
35h 50m2 stops
Scandinavian Airlines Logo
7:00 p.m. - 10:22 p.m.BCN-SEA
36h 22m2 stops
C$ 865Scandinavian Airlines
Find Deal
Tue, 7 Oct - Fri, 24 Oct
Icelandair Logo
2:35 p.m. - 1:20 p.m.SEA-BCN
13h 45m1 stop
Icelandair Logo
11:50 a.m. - 5:00 p.m.BCN-SEA
14h 10m1 stop
C$ 870Icelandair
Find Deal
Fri, 7 Nov - Sun, 23 Nov
Scandinavian Airlines Logo
9:25 p.m. - 8:50 a.m.SEA-BCN
50h 25m2 stops
Scandinavian Airlines Logo
7:00 p.m. - 10:22 p.m.BCN-SEA
36h 22m2 stops
C$ 872Scandinavian Airlines
Find Deal
Wed, 8 Oct - Fri, 24 Oct
Scandinavian Airlines Logo
4:20 p.m. - 10:40 a.m.SEA-BCN
33h 20m2 stops
Scandinavian Airlines Logo
10:25 a.m. - 10:25 p.m.BCN-SEA
21h 00m2 stops
C$ 879Scandinavian Airlines
Find Deal
Fri, 3 Oct - Thu, 9 Oct
Scandinavian Airlines Logo
4:20 p.m. - 6:10 p.m.SEA-BCN
16h 50m1 stop
Scandinavian Airlines Logo
9:40 a.m. - 8:50 p.m.BCN-SEA
20h 10m2 stops
C$ 885Scandinavian Airlines
Find Deal
Wed, 8 Oct - Sat, 18 Oct
Scandinavian Airlines Logo
4:20 p.m. - 6:10 p.m.SEA-BCN
16h 50m1 stop
Scandinavian Airlines Logo
7:00 p.m. - 10:01 p.m.BCN-SEA
36h 01m2 stops
C$ 886Scandinavian Airlines
Find Deal
Wed, 17 Sep - Fri, 3 Oct
Logo
2:35 p.m. - 1:20 p.m.SEA-BCN
13h 45m1 stop
Logo
11:50 a.m. - 10:55 p.m.BCN-SEA
20h 05m2 stops
C$ 951
Find Deal
Wed, 26 Nov - Tue, 2 Dec
Turkish Airlines Logo
7:10 p.m. - 5:05 p.m.SEA-BCN
36h 55m1 stop
Turkish Airlines Logo
7:50 a.m. - 5:15 p.m.BCN-SEA
18h 25m1 stop
C$ 1,042Turkish Airlines
Find Deal
Mon, 22 Sep - Wed, 22 Oct

Icelandair flights from Seattle to Barcelona-El Prat Airport

Our best Icelandair deals on Seattle to Barcelona-El Prat Airport flight tickets
Icelandair
7 Nov
SEA2:35 p.m.Seattle/Tacoma Intl
13h 45m
1 stop
BCN1:20 p.m.Barcelona-El Prat
23 Nov
BCN11:50 a.m.Barcelona-El Prat
14h 10m
1 stop
SEA5:00 p.m.Seattle/Tacoma Intl
C$ 870
Find similar
Icelandair
30 Aug
SEA7:00 p.m.Seattle/Tacoma Intl
34h 45m
1 stop
BCN2:45 p.m.Barcelona-El Prat
8 Sep
BCN3:45 p.m.Barcelona-El Prat
28h 40m
1 stop
SEA11:25 a.m.Seattle/Tacoma Intl
C$ 6,024
Find similar
Icelandair
30 Aug
SEA7:30 p.m.Seattle/Tacoma Intl
34h 15m
2 stops
BCN2:45 p.m.Barcelona-El Prat
10 Sep
BCN3:45 p.m.Barcelona-El Prat
39h 44m
2 stops
SEA10:29 p.m.Seattle/Tacoma Intl
C$ 9,096
Find similar

Scandinavian Airlines flights from Seattle to Barcelona-El Prat Airport

Our best Scandinavian Airlines deals on Seattle to Barcelona-El Prat Airport flight tickets
Scandinavian Airlines
10 Oct
SEA4:20 p.m.Seattle/Tacoma Intl
33h 20m
2 stops
BCN10:40 a.m.Barcelona-El Prat
13 Oct
BCN7:00 p.m.Barcelona-El Prat
34h 50m
2 stops
SEA8:50 p.m.Seattle/Tacoma Intl
C$ 846
Find similar
Scandinavian Airlines
9 Oct
SEA2:10 p.m.Seattle/Tacoma Intl
33h 40m
2 stops
BCN8:50 a.m.Barcelona-El Prat
21 Oct
BCN7:00 p.m.Barcelona-El Prat
28h 00m
1 stop
SEA2:00 p.m.Seattle/Tacoma Intl
C$ 864
Find similar
Scandinavian Airlines
7 Oct
SEA12:45 p.m.Seattle/Tacoma Intl
35h 50m
2 stops
BCN9:35 a.m.Barcelona-El Prat
24 Oct
BCN7:00 p.m.Barcelona-El Prat
36h 22m
2 stops
SEA10:22 p.m.Seattle/Tacoma Intl
C$ 865
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona-El Prat Airport 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 96,600 searches. Data last updated 28 August 2025.
Use the filters below to find and compare flights from Seattle to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 10/10

4:20 p.m.-10:40 a.m.

2 stops33h 20m

Barcelona-El Prat

Mon 13/10

7:00 p.m.-8:50 p.m.

2 stops34h 50m

C$ 846

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 9/10

2:10 p.m.-8:50 a.m.

2 stops33h 40m

Barcelona-El Prat

Tue 21/10

7:00 p.m.-2:00 p.m.

1 stop28h 00m

C$ 864

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 7/10

12:45 p.m.-9:35 a.m.

2 stops35h 50m

Barcelona-El Prat

Fri 24/10

7:00 p.m.-10:22 p.m.

2 stops36h 22m

C$ 865

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 7/11

2:35 p.m.-1:20 p.m.

1 stop13h 45m

Barcelona-El Prat

Sun 23/11

11:50 a.m.-5:00 p.m.

1 stop14h 10m

C$ 870

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 8/10

9:25 p.m.-8:50 a.m.

2 stops50h 25m

Barcelona-El Prat

Fri 24/10

7:00 p.m.-10:22 p.m.

2 stops36h 22m

C$ 872

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 3/10

4:20 p.m.-10:40 a.m.

2 stops33h 20m

Barcelona-El Prat

Thu 9/10

10:25 a.m.-10:25 p.m.

2 stops21h 00m

C$ 879

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 8/10

4:20 p.m.-6:10 p.m.

1 stop16h 50m

Barcelona-El Prat

Sat 18/10

9:40 a.m.-8:50 p.m.

2 stops20h 10m

C$ 885

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 17/9

4:20 p.m.-6:10 p.m.

1 stop16h 50m

Barcelona-El Prat

Fri 3/10

7:00 p.m.-10:01 p.m.

2 stops36h 01m

C$ 886

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 26/11

2:35 p.m.-1:20 p.m.

1 stop13h 45m

Barcelona-El Prat

Tue 2/12

11:50 a.m.-10:55 p.m.

2 stops20h 05m

C$ 951

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 22/9

7:10 p.m.-5:05 p.m.

1 stop36h 55m

Barcelona-El Prat

Wed 22/10

7:50 a.m.-5:15 p.m.

1 stop18h 25m

C$ 1,042

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-El Prat Airport

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-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Seattle is in November. Flight prices, which tend to average around C$ 922, are often lower during this time because this is during the off-season. If you are unable to visit Barcelona-El Prat Airport during the month of November, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around C$ 932.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart from Seattle to Barcelona-El Prat Airport is on a Monday. Travellers who choose to depart for Barcelona-El Prat Airport on a Monday will often find tickets for as low as C$ 853. On the other hand, Tuesday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,768.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Our most recent data shows that the best time of day to fly to Barcelona-El Prat Airport is in the afternoon. Flights from Seattle to Barcelona-El Prat Airport during this time can be as low as C$ 912. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 1,449 on average. Flights to Barcelona-El Prat Airport from Seattle in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Barcelona-El Prat Airport?

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around C$ 1,180 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Seattle for as low as C$ 993 on momondo.

How have Seattle to Barcelona-El Prat Airport flight prices changed over time?

As of August 2025, prices for Seattle to Barcelona-El Prat Airport flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Barcelona-El Prat Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Barcelona-El Prat Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Barcelona-El Prat Airport (SEA to BCN) flight deals and tips

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

Direct flights

None
There are no direct flights from Seattle to Barcelona-El Prat Airport. There are no popular flight routes from Seattle to Barcelona-El Prat Airport.
Search flight deals

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

    There are 8711.2 km between Seattle/Tacoma Intl and Barcelona-El Prat. In terms of flight time, this usually takes a little over 13h 45m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport were last updated today.

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

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

    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-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The travel and health documents required for your trip to Barcelona-El Prat Airport 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 Barcelona-El Prat Airport. 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 Barcelona-El Prat Airport?

  • What is the most popular airline from Seattle to Barcelona-El Prat Airport?

Best airlines flying from Seattle to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Seattle to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom C$ 714Free CancellationRating
6.8
7,368 reviews
Search Lufthansa flights

Travelling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Sitges
L'Hospitalet de Llobregat
Cadaques
Castelldefels
El Prat de Llobregat
Badalona
Tarragona
Calella de Palafrugell
Llafranc
Lloret de Mar
Calella
Salou
Tossa de Mar

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Barcelona for you.

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?

momondo helps you find the best flight between Seattle and Barcelona by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Barcelona from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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