Barcelona-El Prat

$371+ Cheap flights from Seattle (SEA) to Barcelona-El Prat (BCN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Apr 26 — May 31
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Find cheap flights from Seattle to Barcelona-El Prat with Cheapflights

1. Tell us where you want to go

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Cheap flight deals from Seattle to Barcelona-El Prat

Cheapest flights from Seattle to Barcelona-El Prat
Explore the most affordable flight options available from Seattle to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:05 pm
SEA
-
BCN
1 stop19h 05m
Condor
Tue 10/1310:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Deal found 3/26$562
This oojo deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:55 pm
SEA
-
BCN
1 stop32h 00m
Scandinavian Airlines
Thu 9/2412:25 pm
BCN
-
SEA
1 stop34h 20m
Scandinavian Airlines
Deal found 3/26$575
This Cheapflightsfares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:40 pm
SEA
-
BCN
1 stop13h 25m
Condor
Wed 10/2110:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Deal found 3/24$580
This Justfly.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:55 pm
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Fri 9/1810:25 am
BCN
-
SEA
1 stop36h 20m
Scandinavian Airlines
Deal found 3/26$588
This Cheapflightsfares deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:05 pm
SEA
-
BCN
1 stop19h 05m
Condor
Mon 10/198:00 am
BCN
-
SEA
1 stop17h 10m
Condor
Deal found 3/22$590
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 pm
SEA
-
BCN
1 stop13h 05m
Condor
Sat 10/2410:25 am
BCN
-
SEA
1 stop14h 35m
Condor
Deal found 3/23$594
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:10 pm
SEA
-
BCN
1 stop19h 00m
Condor
Mon 10/1910:15 am
BCN
-
SEA
1 stop14h 55m
Condor
Deal found 3/25$595
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:05 pm
SEA
-
BCN
1 stop19h 05m
Condor
Wed 10/1410:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Deal found 3/27$596
This Ticket deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:40 pm
SEA
-
BCN
1 stop19h 30m
Condor
Sun 10/1810:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Deal found 3/25$598
This Gotogate deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:40 pm
SEA
-
BCN
1 stop14h 05m
Icelandair
Wed 4/293:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 3/25$602
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:55 pm
SEA
-
BCN
1 stop32h 50m
Scandinavian Airlines
Sat 9/267:00 pm
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 3/24$603

Find flight deals from Seattle to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona-El Prat (BCN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$575
(oojo)

One-way from

$371
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$701

Good round-trip deal

$880 or less

Good one-way deal

$698 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Barcelona-El Prat flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Barcelona-El Prat flights.
From Seattle/Tacoma Intl to Barcelona-El Prat
One-way flight from Seattle/Tacoma Intl to Barcelona-El Prat
Highest demand for flights based on searches. 22% potential increase in price ($214 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Barcelona-El Prat.
Price to beat on a one-way flight from Seattle/Tacoma Intl to Barcelona-El Prat.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona-El Prat 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, Cheapflights users made 2,558,603 searches. Data last updated March 27, 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

Cheapest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 4/15

7:10 pm-11:15 pm

1 stop19h 05m

Barcelona-El Prat

Sun 4/19

7:40 am-5:15 pm

1 stop18h 35m

$726

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 5/6

10:49 am-4:05 pm

2 stops20h 16m

Barcelona-El Prat

Wed 5/13

10:25 am-3:40 pm

1 stop14h 15m

$800

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 4/23

11:10 am-2:50 pm

2 stops18h 40m

Barcelona-El Prat

Tue 4/28

6:20 am-4:45 pm

2 stops19h 25m

$914

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 5/17

5:40 pm-4:00 pm

1 stop13h 20m

Barcelona-El Prat

Mon 10/5

10:15 am-4:10 pm

1 stop14h 55m

$984

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 5/16

8:45 am-4:05 pm

2 stops22h 20m

Barcelona-El Prat

Thu 5/21

8:00 am-11:59 pm

2 stops24h 59m

$990

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 4/15

7:15 am-11:15 am

2 stops19h 00m

Barcelona-El Prat

Thu 4/23

9:20 am-8:43 pm

2 stops20h 23m

$1,064
Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 5/7

3:25 pm-11:10 am

Nonstop10h 45m

Barcelona-El Prat

Wed 5/20

1:20 pm-3:33 pm

Nonstop11h 13m

$1,070

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 5/1

1:50 pm-2:40 pm

1 stop15h 50m

Barcelona-El Prat

Wed 5/13

1:20 pm-3:33 pm

Nonstop11h 13m

$1,079

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 5/8

6:40 pm-5:10 pm

1 stop13h 30m

Barcelona-El Prat

Fri 5/15

1:20 pm-3:33 pm

Nonstop11h 13m

$1,125

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 3/30

8:42 am-5:40 pm

2 stops23h 58m

Barcelona-El Prat

Thu 4/9

7:40 am-10:42 pm

2 stops24h 02m

$1,283

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Seattle to Barcelona-El Prat

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Barcelona-El Prat in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Barcelona-El Prat Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Barcelona-El Prat Airport

How far ahead should I book a flight from Seattle to Barcelona-El Prat Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Barcelona-El Prat. Price data was last updated on March 13, 2026.

The price you pay for your flight from Seattle to Barcelona-El Prat Airport may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of $353). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $768). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to Barcelona-El Prat Airport?

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated March 27, 2026.
See what other customers who have flown with Delta,United Airlines, andIcelandair from Seattle to Barcelona-El Prat Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Seattle to Barcelona-El Prat?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Barcelona-El Prat. 15 airlines have flights from Seattle/Tacoma Intl to Barcelona-El Prat on a regular basis. Booking flights from Seattle/Tacoma Intl to Barcelona-El Prat should not be difficult; the airport handles an average of 0 outbound flights to Barcelona-El Prat per day.

  • How long is the flight from Seattle to Barcelona-El Prat Airport?

    For as low as $984, Turkish Airlines can have you in Barcelona-El Prat Airport from Seattle in 13h 20m. The distance between Seattle and Barcelona-El Prat Airport is about 5421 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Barcelona-El Prat Airport round-trip?

    According to our current data, Icelandair ($367), Scandinavian Airlines ($461), and Lufthansa ($482) offers the cheapest pricing from Seattle to Barcelona-El Prat Airport. Icelandair is priced at 51% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Barcelona-El Prat Airport one-way?

    The cheapest airlines for a one-way flight from Seattle to Barcelona-El Prat Airport are Icelandair ($260), Scandinavian Airlines ($294), and WestJet ($323).

  • What are the cheapest flights from Seattle to Barcelona-El Prat Airport?

    Looking for the cheapest flight from Seattle to Barcelona-El Prat Airport? While on average our users pay $1,097, our data indicates the cheapest price to be $540. The most popular route (Seattle/Tacoma Intl - Barcelona-El Prat), is priced around $575.

  • Where are the most common layover locations when flying from Seattle to Barcelona-El Prat Airport?

  • What are some popular things to do or see while on a layover in London?

    London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than anywhere else. Hyde Park, Buckingham Palace, and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Those on a layover in London in need of a rental car can book one at London Heathrow for about $33.

  • What are some popular points of interest to see during a layover in Frankfurt am Main?

    Römerberg, Oper Frankfurt, and Festhalle are the most popular attractions in Frankfurt am Main if you're in need of something to do during your layover. Römerberg, Oper Frankfurt, and Festhalle can be visited by traveling about 7.4 mi, 7.0 mi, and 6.5 mi respectively from Frankfurt am Main. Those looking to explore during their layover in Frankfurt am Main can rent a car from Frankfurt am Main for about $47 per day.

  • What are points of interest worth seeing during a layover in Reykjavik?

    Reykjavik travelers tend to visit Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool more than any other attractions. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are located about 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers can rent a car at Reykjavik Keflavik Intl for an average daily rate of $59 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Seattle to Barcelona-El Prat Airport flights?

  • Can I find deals for flights from Seattle to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Seattle to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Barcelona-El Prat?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Barcelona-El Prat.

  • Can I find deals for business class flights from Seattle to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Seattle to Barcelona-El Prat by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of $353). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $768). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Roses
Calella
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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Alternative routes for Seattle to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Seattle to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Seattle to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$367Average$507FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$461Average$543FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$482Average$825FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$482Average$781FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$484Average$590FlexibilityNo cancel feeOn-time67%
DeltaCheapest$486Average$980FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$488Average$712FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$491Average$752FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$502Average$791FlexibilityNo cancel feeOn-time71%
CondorCheapest$581Average$748FlexibilityNo cancel feeOn-time76%

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