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Cheap flights from Seattle to Barcelona from C$ 553

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 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Barcelona

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Barcelona
Explore the most affordable flight options available from Seattle to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 April 2026.

Tue 26/53:55 p.m.
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Thu 3/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 28/3C$ 838
Fri 18/93:55 p.m.
SEA
-
BCN
1 stop32h 00m
Scandinavian Airlines
Thu 24/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 30/3C$ 860
Sun 4/103:55 p.m.
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Thu 8/1012:40 p.m.
BCN
-
SEA
2 stops34h 05m
Scandinavian Airlines
Deal found 30/3C$ 870
Sat 5/93:55 p.m.
SEA
-
BCN
1 stop32h 50m
Scandinavian Airlines
Fri 11/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 30/3C$ 902
Fri 8/510:00 a.m.
SEA
-
BCN
2 stops23h 10m
Scandinavian Airlines
Thu 21/512:50 p.m.
BCN
-
SEA
2 stops33h 55m
Scandinavian Airlines
Deal found 28/3C$ 906
Fri 11/93:55 p.m.
SEA
-
BCN
2 stops32h 50m
Scandinavian Airlines
Thu 17/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 30/3C$ 911
Thu 1/107:10 p.m.
SEA
-
BCN
1 stop19h 05m
Turkish Airlines
Fri 30/107:40 a.m.
BCN
-
SEA
1 stop18h 25m
Turkish Airlines
Deal found 30/3C$ 918
Tue 26/53:55 p.m.
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Mon 31/87:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 28/3C$ 935
Wed 5/85:40 p.m.
SEA
-
BCN
1 stop13h 25m
Condor
Tue 22/95:00 p.m.
BCN
-
SEA
1 stop31h 40m
Condor
Deal found 30/3C$ 939
Sun 6/93:55 p.m.
SEA
-
BCN
1 stop17h 15m
Scandinavian Airlines
Fri 11/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 30/3C$ 957
Fri 4/93:55 p.m.
SEA
-
BCN
2 stops32h 50m
Scandinavian Airlines
Thu 10/97:00 p.m.
BCN
-
SEA
1 stop27h 45m
Scandinavian Airlines
Deal found 30/3C$ 967
Tue 22/911:31 a.m.
SEA
-
BCN
2 stops25h 39m
Multiple Airlines
Wed 14/108:00 a.m.
BCN
-
SEA
1 stop16h 40m
Multiple Airlines
Deal found 30/3C$ 972

Find flight deals from Seattle to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona (S37). 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 2 April 2026.

Round-trip from

C$ 838

One-way from

C$ 553

Popular in

June

Cheapest in

February

Average price

C$ 1,054
Scandinavian Airlines
  • Scandinavian Airlines
  • 26/5-3/9
  • 2 total stops
  • 45h 00m total
  • Seattle to Barcelona
Search Deals
17/5
  • 17/5
  • 3 total stops
  • 39h 10m total
  • Seattle to Barcelona
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 419 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona 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 2 April 2026.
Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 4/5

7:10 p.m.-10:45 a.m.

1 stop30h 35m

Barcelona-El Prat

Thu 14/5

7:40 a.m.-5:15 p.m.

1 stop18h 35m

C$ 1,231

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 29/4

7:10 p.m.-5:40 p.m.

1 stop37h 30m

Barcelona-El Prat

Wed 13/5

12:10 p.m.-5:15 p.m.

1 stop38h 05m

C$ 1,231

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 28/4

7:10 p.m.-1:30 p.m.

1 stop33h 20m

Barcelona-El Prat

Fri 15/5

7:40 a.m.-5:15 p.m.

1 stop18h 35m

C$ 1,231

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 5/8

8:50 a.m.-4:05 p.m.

2 stops22h 15m

Barcelona-El Prat

Tue 22/9

8:00 a.m.-9:07 p.m.

2 stops22h 07m

C$ 1,371

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 28/4

7:10 p.m.-11:15 p.m.

1 stop19h 05m

Barcelona-El Prat

Sat 16/5

2:35 p.m.-5:15 p.m.

1 stop35h 40m

C$ 1,389

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 22/4

7:10 p.m.-5:40 p.m.

1 stop37h 30m

Barcelona-El Prat

Mon 27/4

7:40 a.m.-11:27 p.m.

2 stops24h 47m

C$ 1,407

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 28/4

7:20 a.m.-8:45 a.m.

1 stop16h 25m

Barcelona-El Prat

Fri 15/5

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

Nonstop11h 13m

C$ 1,484

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 28/4

7:20 a.m.-8:45 a.m.

1 stop16h 25m

Barcelona-El Prat

Wed 13/5

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

Nonstop11h 13m

C$ 1,484

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$ 1,486

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 23/8

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

1 stop13h 30m

Barcelona-El Prat

Sun 6/9

1:20 p.m.-3:59 p.m.

Nonstop11h 39m

C$ 1,491

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/3

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

Best time to book a flight from Seattle to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

How far ahead should I book a flight from Seattle to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Barcelona. Price data was last updated on 2 April 2026.

The price you pay for your flight from Seattle to Barcelona 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?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona (average of C$ 490). Flying from Seattle to Barcelona in June is currently the most expensive (average of C$ 981). 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?

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated 2 April 2026.
Check out reviews from past customers who have flown with Lufthansa from Seattle to Barcelona to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,883 reviews
Check prices

Food

6.3

Comfort

6.8

Overall

6.8

Entertainment

6.4

Boarding

7.0

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
7,883 reviews
Lufthansa
6.8
Okay
7,883 reviews
Check prices

Food

6.3

Comfort

6.8

Overall

6.8

Entertainment

6.4

Boarding

7.0

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. 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?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Barcelona. 1 airline have flights from Seattle/Tacoma Intl to Barcelona on a regular basis. Booking flights from Seattle/Tacoma Intl to Barcelona should not be difficult; the airport handles an average of 0 outbound flights to Barcelona per day.

  • How long is the flight from Seattle to Barcelona?

    Departing from Seattle to Barcelona will take you 30h 35m. The distance between Seattle and Barcelona is about 8724 km.

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

    Our cheapest airline available from Seattle to Barcelona is Lufthansa. Our recent data shows that you can find tickets from as low as C$ 660 on this airline. Users have found that Lufthansa is 37% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Barcelona 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?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona (average of C$ 490). Flying from Seattle to Barcelona in June is currently the most expensive (average of C$ 981). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Barcelona-El Prat flights

Top airline flying from Seattle to Barcelona

Discover the top airline that operate flights from Seattle to Barcelona. 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 660AverageC$ 773FlexibilityNo 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?

Cheapflights makes it easy to find Seattle to Barcelona flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Barcelona for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Barcelona from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Barcelona from Seattle today and book when prices fit your budget.

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