Find flights
Deals
When to book
FAQs

Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 341

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Barcelona-El Prat

Enter your travel dates to find the best prices.

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 29 June 2026.

Fri 11/912:27 p.m.
SEA
-
BCN
2 stops24h 43m
Multiple Airlines
Thu 24/98:00 a.m.
BCN
-
SEA
1 stop17h 00m
Multiple Airlines
Deal found 26/6C$ 1,008
Tue 3/111:25 p.m.
SEA
-
BCN
1 stop15h 15m
British Airways
Thu 12/116:40 a.m.
BCN
-
SEA
2 stops21h 35m
British Airways
Deal found 24/6C$ 1,015
Mon 7/96:10 p.m.
SEA
-
BCN
1 stop19h 00m
Multiple Airlines
Fri 30/107:00 a.m.
BCN
-
SEA
2 stops23h 18m
Multiple Airlines
Deal found 25/6C$ 1,018
Thu 8/106:05 p.m.
SEA
-
BCN
1 stop19h 05m
Multiple Airlines
Mon 19/108:00 a.m.
BCN
-
SEA
2 stops21h 53m
Multiple Airlines
Deal found 24/6C$ 1,022
Tue 15/93:55 p.m.
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Thu 24/912:50 p.m.
BCN
-
SEA
2 stops33h 55m
Scandinavian Airlines
Deal found 24/6C$ 1,032
Wed 7/105:40 p.m.
SEA
-
BCN
1 stop13h 25m
Condor
Mon 12/105:00 p.m.
BCN
-
SEA
1 stop31h 40m
Condor
Deal found 26/6C$ 1,033
Sat 3/106:00 p.m.
SEA
-
BCN
1 stop19h 10m
Condor
Thu 8/1010:15 a.m.
BCN
-
SEA
1 stop14h 45m
Condor
Deal found 26/6C$ 1,036
Fri 9/106:00 p.m.
SEA
-
BCN
1 stop13h 05m
Condor
Thu 22/1010:15 a.m.
BCN
-
SEA
1 stop14h 45m
Condor
Deal found 24/6C$ 1,037
Mon 17/85:40 p.m.
SEA
-
BCN
1 stop17h 25m
Finnair
Mon 31/810:05 a.m.
BCN
-
SEA
1 stop14h 55m
Finnair
Deal found 23/6C$ 1,043
Sun 23/85:40 p.m.
SEA
-
BCN
1 stop19h 30m
Condor
Thu 29/1010:15 a.m.
BCN
-
SEA
1 stop14h 40m
Condor
Deal found 25/6C$ 1,045
Tue 11/810:03 a.m.
SEA
-
BCN
2 stops27h 07m
Multiple Airlines
Tue 8/910:25 a.m.
BCN
-
SEA
1 stop14h 15m
Multiple Airlines
Deal found 24/6C$ 1,050
Sun 4/103:55 p.m.
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Sat 10/1010:45 a.m.
BCN
-
SEA
2 stops36h 00m
Scandinavian Airlines
Deal found 26/6C$ 1,052

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 29 June 2026.

Round-trip from

C$ 1,008

One-way from

C$ 341

Popular in

June

Cheapest in

January

Average price

C$ 1,687
Condor
  • Condor
  • 11/9-24/9
  • 3 total stops
  • 41h 43m total
  • Seattle to Barcelona
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 1/11
  • 1 total stop
  • 25h 40m total
  • Seattle to Barcelona
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 411 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 77 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 629,999 searches. Data last updated 29 June 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
Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 2/10

6:00 p.m.-4:05 p.m.

1 stop13h 05m

Barcelona-El Prat

Tue 6/10

10:25 a.m.-3:40 p.m.

1 stop14h 15m

C$ 1,036

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 19/10

6:10 p.m.-10:10 p.m.

1 stop19h 00m

Barcelona-El Prat

Tue 27/10

10:15 a.m.-4:55 p.m.

1 stop14h 40m

C$ 1,037

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/10

11:41 a.m.-10:10 p.m.

2 stops25h 29m

Barcelona-El Prat

Tue 13/10

10:25 a.m.-3:40 p.m.

1 stop14h 15m

C$ 1,064

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 8/9

6:05 p.m.-10:10 p.m.

1 stop19h 05m

Barcelona-El Prat

Sun 1/11

7:00 a.m.-2:55 p.m.

1 stop15h 55m

C$ 1,086

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 14/9

7:15 a.m.-6:10 p.m.

2 stops25h 55m

Barcelona-El Prat

Thu 24/9

12:50 p.m.-1:45 p.m.

2 stops33h 55m

C$ 1,165

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 23/8

2:44 p.m.-10:10 p.m.

2 stops22h 26m

Barcelona-El Prat

Thu 29/10

7:00 a.m.-4:55 p.m.

1 stop17h 55m

C$ 1,208

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 2/10

3:55 p.m.-8:55 a.m.

1 stop32h 00m

Barcelona-El Prat

Wed 7/10

7:00 p.m.-2:47 p.m.

2 stops52h 47m

C$ 1,287

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 4/9

6:00 p.m.-4:05 p.m.

1 stop13h 05m

Barcelona-El Prat

Tue 27/10

10:15 a.m.-4:55 p.m.

1 stop14h 40m

C$ 1,299

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 26/7

7:29 a.m.-8:35 a.m.

1 stop16h 06m

Barcelona-El Prat

Fri 7/8

1:20 p.m.-3:45 p.m.

Nonstop11h 25m

C$ 1,360

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 4/9

3:55 p.m.-9:45 a.m.

2 stops32h 50m

Barcelona-El Prat

Tue 27/10

7:10 p.m.-10:26 p.m.

2 stops35h 16m

C$ 1,392

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/6

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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?

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 73 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 C$ 681). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,687). 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.

What is the cheapest time of day to fly from SEA to BCN?

Find hourly flight availability from Seattle to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 June 2026.

When flying from Seattle to Barcelona-El Prat Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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?

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Barcelona-El Prat from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Barcelona-El Prat should be relatively easy as there is 1 daily outbound flight to Barcelona-El Prat from 0 different airlines.

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

    A quick flight from Seattle to Barcelona-El Prat Airport can take about 13h 05m. Condor provides one of the quickest options available for as low as C$ 1,036. The distance from Seattle to Barcelona-El Prat Airport is about 8724 km. This flight may include one or multiple stops.

  • What are the most reliable airlines from Seattle to Barcelona-El Prat Airport?

    Before booking your flight to Barcelona-El Prat Airport from Seattle, check out the most reliable airlines to get you to your destination on time: KLM (88%), Air France (88%), Delta( 88%).

  • 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 C$ 681). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,687). 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

Travelling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
L'Hospitalet de Llobregat
Santa Susanna
Malgrat de Mar

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Barcelona-El Prat?

Deals for Seattle to Barcelona-El Prat flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Barcelona-El Prat?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Barcelona-El Prat for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Barcelona-El Prat with no change fees?

Yes, we can. To see specific flights from Seattle to Barcelona-El Prat with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Barcelona-El Prat become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Barcelona-El Prat flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.