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Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 385

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
16 May — 23 May1
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 16 April 2026.

Fri 10/76:00 p.m.
SEA
-
BCN
1 stop19h 10m
Condor
Sun 30/85:00 p.m.
BCN
-
SEA
1 stop32h 10m
Condor
Deal found 12/4C$ 915
Sat 5/93:55 p.m.
SEA
-
BCN
1 stop32h 50m
Scandinavian Airlines
Mon 14/910:35 a.m.
BCN
-
SEA
1 stop36h 10m
Scandinavian Airlines
Deal found 12/4C$ 949
Wed 18/117:00 p.m.
SEA
-
BCN
1 stop30h 45m
Turkish Airlines
Tue 24/116:30 p.m.
BCN
-
SEA
1 stop31h 35m
Turkish Airlines
Deal found 13/4C$ 956
Sun 27/95:40 p.m.
SEA
-
BCN
1 stop13h 20m
Condor
Sun 4/1010:25 a.m.
BCN
-
SEA
1 stop14h 15m
Condor
Deal found 12/4C$ 974
Fri 2/103:55 p.m.
SEA
-
BCN
1 stop32h 00m
Scandinavian Airlines
Mon 12/1010:35 a.m.
BCN
-
SEA
2 stops41h 30m
Scandinavian Airlines
Deal found 12/4C$ 977
Sat 10/106:00 p.m.
SEA
-
BCN
1 stop13h 05m
Multiple Airlines
Tue 20/108:00 a.m.
BCN
-
SEA
2 stops19h 56m
Multiple Airlines
Deal found 12/4C$ 991
Fri 11/93:55 p.m.
SEA
-
BCN
2 stops32h 50m
Scandinavian Airlines
Sat 19/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 12/4C$ 1,000
Sat 5/96:15 p.m.
SEA
-
BCN
1 stop18h 55m
Condor
Sun 13/95:00 p.m.
BCN
-
SEA
1 stop32h 10m
Condor
Deal found 12/4C$ 1,003
Wed 2/97:10 p.m.
SEA
-
BCN
1 stop19h 05m
Turkish Airlines
Wed 9/97:40 a.m.
BCN
-
SEA
1 stop18h 35m
Turkish Airlines
Deal found 12/4C$ 1,018
Sun 20/95:40 p.m.
SEA
-
BCN
1 stop13h 20m
Multiple Airlines
Wed 30/98:00 a.m.
BCN
-
SEA
2 stops19h 56m
Multiple Airlines
Deal found 11/4C$ 1,032
Sun 27/99:25 p.m.
SEA
-
BCN
2 stops52h 10m
Scandinavian Airlines
Thu 1/1012:25 p.m.
BCN
-
SEA
1 stop34h 20m
Scandinavian Airlines
Deal found 12/4C$ 1,040

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 16 April 2026.

Round-trip from

C$ 915

One-way from

C$ 385

Popular in

June

Cheapest in

February

Average price

C$ 1,035
Condor
  • Condor
  • 10/7-30/8
  • 2 total stops
  • 51h 20m total
  • Seattle to Barcelona
Search Deals
7/5
  • 7/5
  • 3 total stops
  • 38h 40m total
  • Seattle to Barcelona
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 395 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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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 16 April 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

Fri 10/7

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

1 stop13h 05m

Barcelona-El Prat

Sun 30/8

8:00 a.m.-6:56 p.m.

2 stops19h 56m

C$ 1,253

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/8

7:15 a.m.-8:45 a.m.

1 stop16h 30m

Barcelona-El Prat

Wed 19/8

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

Nonstop11h 25m

C$ 1,410

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/8

11:52 p.m.-8:20 a.m.

2 stops23h 28m

Barcelona-El Prat

Tue 18/8

1:15 p.m.-3:36 p.m.

2 stops35h 21m

C$ 1,414

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/8

1:30 p.m.-3:35 p.m.

1 stop17h 05m

Barcelona-El Prat

Wed 12/8

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

Nonstop11h 25m

C$ 1,431
Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 6/8

3:35 p.m.-11:10 a.m.

Nonstop10h 35m

Barcelona-El Prat

Fri 28/8

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

Nonstop11h 25m

C$ 1,473

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 7/8

11:15 p.m.-8:35 a.m.

1 stop24h 20m

Barcelona-El Prat

Fri 28/8

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

Nonstop11h 25m

C$ 1,479

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 10/5

9:00 a.m.-4:00 p.m.

2 stops22h 00m

Barcelona-El Prat

Tue 26/5

8:00 a.m.-8:10 p.m.

2 stops21h 10m

C$ 1,500

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 13/5

6:00 a.m.-12:50 p.m.

1 stop21h 50m

Barcelona-El Prat

Wed 20/5

1:20 p.m.-3:33 p.m.

Nonstop11h 13m

C$ 1,727

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 8/10

3:30 p.m.-11:10 a.m.

Nonstop10h 40m

Barcelona-El Prat

Tue 13/10

6:20 a.m.-11:52 a.m.

1 stop14h 32m

C$ 1,783
Cheapest one-way

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 13/10

3:30 p.m.-11:10 a.m.

Nonstop10h 40m

C$ 975

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 10 April 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 C$ 486). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 948). 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?

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 are 0 daily outbound flights 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 10h 35m. Delta provides one of the quickest options available for as low as C$ 1,473. The distance from Seattle to Barcelona-El Prat Airport is about 8724 km. This flight may include one or multiple stops.

  • 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$ 486). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 948). 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
Santa Susanna
L'Hospitalet de Llobregat

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

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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.

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