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Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 330

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
27 Mar — 3 Apr1
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 25 February 2026.

Thu 9/46:00 a.m.
SEA
-
BCN
1 stop16h 35m
Iberia
Mon 20/410:45 a.m.
BCN
-
SEA
1 stop21h 02m
Iberia
Deal found 23/2C$ 798
Mon 4/57:00 a.m.
SEA
-
BCN
2 stops26h 10m
Scandinavian Airlines
Wed 13/57:00 p.m.
BCN
-
SEA
2 stops37h 55m
Scandinavian Airlines
Deal found 23/2C$ 813
Sun 3/55:40 p.m.
SEA
-
BCN
1 stop13h 20m
Condor
Fri 15/510:15 a.m.
BCN
-
SEA
1 stop14h 45m
Condor
Deal found 23/2C$ 817
Mon 20/411:45 a.m.
SEA
-
BCN
2 stops21h 25m
Scandinavian Airlines
Wed 6/57:00 p.m.
BCN
-
SEA
2 stops37h 55m
Scandinavian Airlines
Deal found 23/2C$ 822
Mon 4/57:00 a.m.
SEA
-
BCN
2 stops26h 10m
Scandinavian Airlines
Mon 18/510:35 a.m.
BCN
-
SEA
2 stops22h 20m
Scandinavian Airlines
Deal found 23/2C$ 848
Sun 3/55:40 p.m.
SEA
-
BCN
1 stop13h 20m
Condor
Sat 9/510:25 a.m.
BCN
-
SEA
1 stop14h 35m
Condor
Deal found 23/2C$ 862
Tue 21/47:00 a.m.
SEA
-
BCN
2 stops26h 10m
Scandinavian Airlines
Wed 6/57:00 p.m.
BCN
-
SEA
2 stops36h 52m
Scandinavian Airlines
Deal found 23/2C$ 863
Tue 5/511:45 a.m.
SEA
-
BCN
2 stops21h 25m
Scandinavian Airlines
Fri 15/510:25 a.m.
BCN
-
SEA
2 stops22h 30m
Scandinavian Airlines
Deal found 23/2C$ 865
Tue 5/57:10 p.m.
SEA
-
BCN
1 stop19h 05m
Turkish Airlines
Tue 12/57:40 a.m.
BCN
-
SEA
1 stop18h 35m
Turkish Airlines
Deal found 23/2C$ 880
Mon 20/47:10 p.m.
SEA
-
BCN
1 stop19h 05m
Turkish Airlines
Tue 5/57:40 a.m.
BCN
-
SEA
1 stop18h 35m
Turkish Airlines
Deal found 23/2C$ 881
Sun 26/47:00 a.m.
SEA
-
BCN
2 stops26h 10m
Scandinavian Airlines
Mon 4/510:35 a.m.
BCN
-
SEA
2 stops22h 16m
Scandinavian Airlines
Deal found 24/2C$ 889
Sun 1/118:00 p.m.
SEA
-
BCN
1 stop18h 50m
Turkish Airlines
Tue 10/116:30 p.m.
BCN
-
SEA
1 stop31h 35m
Turkish Airlines
Deal found 22/2C$ 894

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 25 February 2026.

Round-trip from

C$ 798

One-way from

C$ 330

Popular in

June

Cheapest in

February

Average price

C$ 666
Iberia
  • Iberia
  • 9/4-20/4
  • 2 total stops
  • 37h 37m total
  • Seattle to Barcelona
Search Deals
7/4
  • 7/4
  • 2 total stops
  • 57h 25m total
  • Seattle to Barcelona
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 471 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 25 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

Seattle

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 4/5

7:00 a.m.-6:10 p.m.

2 stops26h 10m

Barcelona-El Prat

Sat 9/5

7:00 p.m.-10:37 p.m.

2 stops36h 37m

C$ 889

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 22/4

7:15 a.m.-3:35 p.m.

2 stops23h 20m

Barcelona-El Prat

Sun 3/5

6:20 a.m.-11:42 a.m.

1 stop14h 22m

C$ 1,007

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 21/4

6:40 p.m.-5:10 p.m.

1 stop13h 30m

Barcelona-El Prat

Fri 8/5

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

Nonstop11h 13m

C$ 1,035

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 2/5

11:48 p.m.-8:20 a.m.

2 stops23h 32m

Barcelona-El Prat

Thu 14/5

6:40 a.m.-12:20 p.m.

1 stop14h 40m

C$ 1,048

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 23/4

1:30 p.m.-11:15 a.m.

1 stop12h 45m

Barcelona-El Prat

Fri 8/5

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

Nonstop11h 13m

C$ 1,103

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 7/5

3:25 p.m.-11:10 a.m.

Nonstop10h 45m

Barcelona-El Prat

Sat 16/5

6:20 a.m.-11:42 a.m.

1 stop14h 22m

C$ 1,187

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 16/3

7:21 a.m.-11:20 a.m.

2 stops19h 59m

Barcelona-El Prat

Thu 26/3

5:30 p.m.-12:30 p.m.

1 stop27h 00m

C$ 1,220

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 16/3

1:30 p.m.-3:00 p.m.

2 stops17h 30m

Barcelona-El Prat

Thu 26/3

6:00 a.m.-6:30 p.m.

2 stops20h 30m

C$ 1,229

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 8/8

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

Nonstop10h 35m

Barcelona-El Prat

Tue 18/8

5:20 p.m.-11:37 a.m.

1 stop27h 17m

C$ 1,536

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 16/7

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

Nonstop10h 35m

Barcelona-El Prat

Tue 28/7

6:20 a.m.-11:33 a.m.

1 stop14h 13m

C$ 1,913

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/2

Showing 1-10 of 19 results
1
2

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 20 February 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$ 484). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,106). 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.

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 25 February 2026.
Read reviews from past customers who have flown Lufthansa from Seattle to Barcelona-El Prat Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,809 reviews
Check prices

Entertainment

6.5

Boarding

7.0

Comfort

6.8

Overall

6.8

Food

6.3

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
Lufthansa
6.8
Okay
7,809 reviews
Lufthansa
6.8
Okay
7,809 reviews
Check prices

Entertainment

6.5

Boarding

7.0

Comfort

6.8

Overall

6.8

Food

6.3

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.

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 1 airline.

  • 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 23h 20m. Scandinavian Airlines provides one of the quickest options available for as low as C$ 1,007. The distance from Seattle to Barcelona-El Prat Airport is about 8724 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Seattle to Barcelona-El Prat Airport round-trip?

    Our cheapest airline available from Seattle to Barcelona-El Prat Airport is Lufthansa. Our recent data shows that you can find tickets from as low as C$ 651 on this airline. You may be able to fly from Seattle to Barcelona-El Prat Airport for 38% less than the average price by searching for this airline.

  • 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$ 484). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,106). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to Barcelona-El Prat

Discover the top airline 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 629,999 searches. Data last updated 25 February 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 651AverageC$ 762FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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.

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