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Cheap flights from Seattle to Barcelona from C$ 536

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 6/6. 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

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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.
Icelandair Logo
3:40 p.m. - 2:45 p.m.
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 p.m. - 8:40 p.m.
BCN
-
SEA
13h 55m
1 stop
C$ 566Icelandair
Wed, 22 Apr - Wed, 29 Apr
Icelandair Logo
7:00 p.m. - 2:45 p.m.
SEA
-
BCN
34h 45m
1 stop
Icelandair Logo
3:45 p.m. - 8:40 p.m.
BCN
-
SEA
13h 55m
1 stop
C$ 569Icelandair
Tue, 21 Apr - Wed, 29 Apr
Icelandair Logo
3:40 p.m. - 2:45 p.m.
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 p.m. - 8:40 p.m.
BCN
-
SEA
13h 55m
1 stop
C$ 577Icelandair
Wed, 22 Apr - Mon, 4 May
Icelandair Logo
7:00 p.m. - 2:45 p.m.
SEA
-
BCN
34h 45m
1 stop
Icelandair Logo
3:45 p.m. - 8:40 p.m.
BCN
-
SEA
13h 55m
1 stop
C$ 580Icelandair
Fri, 24 Apr - Sat, 2 May
United Airlines Logo
8:00 a.m. - 8:20 a.m.
SEA
-
BCN
15h 20m
1 stop
United Airlines Logo
12:15 p.m. - 11:48 a.m.
BCN
-
SEA
32h 33m
2 stops
C$ 636United Airlines
Wed, 15 Apr - Thu, 23 Apr
United Airlines Logo
8:00 a.m. - 9:20 a.m.
SEA
-
BCN
16h 20m
1 stop
United Airlines Logo
12:15 p.m. - 11:48 a.m.
BCN
-
SEA
32h 33m
2 stops
C$ 641United Airlines
Wed, 8 Apr - Tue, 14 Apr
United Airlines Logo
11:59 p.m. - 9:00 a.m.
SEA
-
BCN
24h 01m
2 stops
United Airlines Logo
12:35 p.m. - 7:03 p.m.
BCN
-
SEA
38h 28m
2 stops
C$ 643United Airlines
Sun, 1 Mar - Fri, 13 Mar
United Airlines Logo
11:59 p.m. - 1:15 p.m.
SEA
-
BCN
28h 16m
1 stop
United Airlines Logo
1:15 p.m. - 10:20 a.m.
BCN
-
SEA
30h 05m
1 stop
C$ 644United Airlines
Sat, 18 Apr - Fri, 1 May
United Airlines Logo
11:05 p.m. - 8:00 a.m.
SEA
-
BCN
23h 55m
2 stops
United Airlines Logo
1:15 p.m. - 4:37 p.m.
BCN
-
SEA
36h 22m
2 stops
C$ 647United Airlines
Tue, 7 Apr - Wed, 15 Apr
United Airlines Logo
6:50 p.m. - 5:55 p.m.
SEA
-
BCN
14h 05m
1 stop
United Airlines Logo
1:15 p.m. - 4:37 p.m.
BCN
-
SEA
36h 22m
2 stops
C$ 648United Airlines
Wed, 8 Apr - Wed, 15 Apr

Delta flights from Seattle to Barcelona-El Prat Airport

Our best Delta deals on Seattle to Barcelona-El Prat Airport flight tickets
Delta
13 Apr
SEA6:40 p.m.Seattle/Tacoma Intl
13h 30m
1 stop
BCN5:10 p.m.Barcelona-El Prat
1 May
BCN6:20 a.m.Barcelona-El Prat
14h 22m
1 stop
SEA11:42 a.m.Seattle/Tacoma Intl
C$ 658
Delta
12 Apr
SEA6:40 p.m.Seattle/Tacoma Intl
31h 35m
1 stop
BCN11:15 a.m.Barcelona-El Prat
20 Apr
BCN1:25 p.m.Barcelona-El Prat
31h 20m
1 stop
SEA11:45 a.m.Seattle/Tacoma Intl
C$ 659
Delta
13 Apr
SEA6:40 p.m.Seattle/Tacoma Intl
13h 30m
1 stop
BCN5:10 p.m.Barcelona-El Prat
30 Apr
BCN11:00 a.m.Barcelona-El Prat
21h 53m
1 stop
SEA11:53 p.m.Seattle/Tacoma Intl
C$ 663

United Airlines flights from Seattle to Barcelona-El Prat Airport

Our best United Airlines deals on Seattle to Barcelona-El Prat Airport flight tickets
United Airlines
15 Apr
SEA8:00 a.m.Seattle/Tacoma Intl
15h 20m
1 stop
BCN8:20 a.m.Barcelona-El Prat
23 Apr
BCN12:15 p.m.Barcelona-El Prat
32h 33m
2 stops
SEA11:48 a.m.Seattle/Tacoma Intl
C$ 636
United Airlines
8 Apr
SEA8:00 a.m.Seattle/Tacoma Intl
16h 20m
1 stop
BCN9:20 a.m.Barcelona-El Prat
14 Apr
BCN12:15 p.m.Barcelona-El Prat
32h 33m
2 stops
SEA11:48 a.m.Seattle/Tacoma Intl
C$ 641
United Airlines
1 Mar
SEA11:59 p.m.Seattle/Tacoma Intl
24h 01m
2 stops
BCN9:00 a.m.Barcelona-El Prat
13 Mar
BCN12:35 p.m.Barcelona-El Prat
38h 28m
2 stops
SEA7:03 p.m.Seattle/Tacoma Intl
C$ 643

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 2 February 2026.
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

Wed 22/4

3:40 p.m.-2:45 p.m.

1 stop14h 05m

Barcelona-El Prat

Wed 29/4

3:45 p.m.-8:40 p.m.

1 stop13h 55m

C$ 566

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 21/4

7:00 p.m.-2:45 p.m.

1 stop34h 45m

Barcelona-El Prat

Wed 29/4

3:45 p.m.-8:40 p.m.

1 stop13h 55m

C$ 569

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 22/4

3:40 p.m.-2:45 p.m.

1 stop14h 05m

Barcelona-El Prat

Mon 4/5

3:45 p.m.-8:40 p.m.

1 stop13h 55m

C$ 577

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 24/4

7:00 p.m.-2:45 p.m.

1 stop34h 45m

Barcelona-El Prat

Sat 2/5

3:45 p.m.-8:40 p.m.

1 stop13h 55m

C$ 580

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 15/4

8:00 a.m.-8:20 a.m.

1 stop15h 20m

Barcelona-El Prat

Thu 23/4

12:15 p.m.-11:48 a.m.

2 stops32h 33m

C$ 636

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 8/4

8:00 a.m.-9:20 a.m.

1 stop16h 20m

Barcelona-El Prat

Tue 14/4

12:15 p.m.-11:48 a.m.

2 stops32h 33m

C$ 641

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 1/3

11:59 p.m.-9:00 a.m.

2 stops24h 01m

Barcelona-El Prat

Fri 13/3

12:35 p.m.-7:03 p.m.

2 stops38h 28m

C$ 643

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 18/4

11:59 p.m.-1:15 p.m.

1 stop28h 16m

Barcelona-El Prat

Fri 1/5

1:15 p.m.-10:20 a.m.

1 stop30h 05m

C$ 644

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 7/4

11:05 p.m.-8:00 a.m.

2 stops23h 55m

Barcelona-El Prat

Wed 15/4

1:15 p.m.-4:37 p.m.

2 stops36h 22m

C$ 647

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 8/4

6:50 p.m.-5:55 p.m.

1 stop14h 05m

Barcelona-El Prat

Wed 15/4

1:15 p.m.-4:37 p.m.

2 stops36h 22m

C$ 648

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 January. Flight prices, which tend to average around C$ 728, 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 January, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around C$ 788.

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$ 1,080 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$ 963 on momondo.

Can stopping save me money on Seattle to Barcelona-El Prat Airport flights?

You could potentially save up to 9% on your flight if you consider stops on a Seattle to Barcelona-El Prat Airport flight.

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

As of February 2026, prices for Seattle to Barcelona-El Prat Airport flights are approximately 2% more expensive 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

Fastest flight time

10h 35m

Direct flights

Wed, Fri and Sun
The fastest flight from Seattle to Barcelona-El Prat Airport takes 10h 35m
Direct flights go from Seattle to Barcelona-El Prat Airport on Wednesday, Friday and Sunday. There are no airlines offering direct flights.
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 10h 35m.

  • 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$ 647Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights

Travelling to a place near Barcelona?

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

An easier way to manage your Barcelona-El Prat Airport trip

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