How long is the flight from Seattle to Barcelona?

Departing from Seattle to Barcelona will take you 13h. The distance between Seattle and Barcelona is about 8724 km. This flight may include one or multiple stops.

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$ 713 on this airline. Users have found that Lufthansa is 38% cheaper than the other options available to this destination.

What is the cheapest day to fly from Seattle to Barcelona?

Travelers seeking maximum savings on their Seattle to Barcelona flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Barcelona ranges from 20.0 - 91.0 mm per month. October is typically the wettest month, when rainfall can reach 91.0 mm. July is typically the driest time to visit Barcelona when rainfall is around 20.0 mm.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

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

Travellers have found that booking a Sunday departure is the best way to save up to 107% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from Seattle to Barcelona?

Our data shows that November tends to be the cheapest month to fly to Barcelona from Seattle. Users have commonly found prices around C$ 1,168 for the month, but tickets can be as low as C$ 666. Due to multiple factors, prepare for potentially higher prices in June.

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.

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.

C$ 542+ Flights from Seattle to Barcelona

Cheap flight deals from Seattle to Barcelona

Round-trip from	C$ 689
One-way from	C$ 542
Popular in	June
Cheapest in	November
Average price	C$ 1,025

2/11-12/11
2 total stops
42h 27m total
Seattle to Barcelona

Search Deals

WestJet
10/12
2 total stops
19h 10m total
Seattle to Barcelona

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (C$ 538 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 73 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Seattle to Barcelona

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 15 September 2025.

Wed 1/1010:09 a.m.SEA - BCN

1 stop15h 01mBritish Airways

Wed 8/1010:45 a.m.BCN - SEA

1 stop22h 42mBritish Airways

Deal found 15/9C$ 689

Thu 13/117:10 a.m.SEA - BCN

2 stops26h 10mScandinavian Airlines

Wed 19/117:10 p.m.BCN - SEA

2 stops36h 15mScandinavian Airlines

Deal found 15/9C$ 703

Sun 26/1010:54 p.m.SEA - BCN

1 stop26h 06mMultiple Airlines

Tue 11/1110:05 a.m.BCN - SEA

2 stops21h 19mMultiple Airlines

Deal found 15/9C$ 707

Sun 9/117:20 a.m.SEA - BCN

2 stops26h 00mScandinavian Airlines

Sun 23/117:10 p.m.BCN - SEA

2 stops35h 50mScandinavian Airlines

Deal found 15/9C$ 709

Mon 10/117:23 a.m.SEA - BCN

2 stops27h 32mFinnair

Tue 25/1110:05 a.m.BCN - SEA

2 stops21h 19mFinnair

Deal found 15/9C$ 710

Thu 9/1010:25 a.m.SEA - BCN

2 stops37h 25mScandinavian Airlines

Thu 16/1010:30 a.m.BCN - SEA

2 stops36h 30mScandinavian Airlines

Deal found 14/9C$ 713

Thu 6/1110:25 a.m.SEA - BCN

2 stops22h 55mScandinavian Airlines

Thu 20/117:10 p.m.BCN - SEA

2 stops37h 48mScandinavian Airlines

Deal found 15/9C$ 720

Thu 6/116:50 p.m.SEA - BCN

1 stop18h 45mBritish Airways

Tue 11/1112:50 p.m.BCN - SEA

1 stop18h 19mBritish Airways

Deal found 15/9C$ 758

Thu 6/115:24 a.m.SEA - BCN

2 stops18h 36mMultiple Airlines

Tue 18/1112:50 p.m.BCN - SEA

1 stop18h 30mMultiple Airlines

Deal found 15/9C$ 764

Thu 6/112:46 p.m.SEA - BCN

2 stops18h 39mBritish Airways

Tue 18/1112:50 p.m.BCN - SEA

1 stop18h 19mBritish Airways

Deal found 14/9C$ 765

Thu 6/1110:08 p.m.SEA - BCN

1 stop23h 57mMultiple Airlines

Tue 11/1110:05 a.m.BCN - SEA

2 stops21h 19mMultiple Airlines

Deal found 15/9C$ 769

Best flights from Seattle to Barcelona
Discover carefully curated flight deals from Seattle to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Fri 20/210:55 a.m.SEA - BCN

2 stops22h 25mScandinavian Airlines

Sun 1/37:10 p.m.BCN - SEA

2 stops32h 46mScandinavian Airlines

Deal found 15/9C$ 703

Thu 6/115:24 a.m.SEA - BCN

2 stops18h 36mMultiple Airlines

Tue 11/1110:05 a.m.BCN - SEA

2 stops21h 19mMultiple Airlines

Deal found 14/9C$ 772

Fri 28/111:35 p.m.SEA - BCN

1 stop13h 00mBritish Airways

Thu 4/1211:15 a.m.BCN - SEA

2 stops20h 46mBritish Airways

Deal found 15/9C$ 793

Sun 9/1112:20 p.m.SEA - BCN

2 stops45h 00mScandinavian Airlines

Sat 22/117:10 p.m.BCN - SEA

2 stops37h 48mScandinavian Airlines

Deal found 14/9C$ 720

Mon 9/312:00 p.m.SEA - BCN

2 stops46h 20mScandinavian Airlines

Mon 16/37:10 p.m.BCN - SEA

2 stops35h 15mScandinavian Airlines

Deal found 14/9C$ 720

Sat 14/32:00 p.m.SEA - BCN

2 stops44h 20mScandinavian Airlines

Mon 23/37:10 p.m.BCN - SEA

2 stops35h 15mScandinavian Airlines

Deal found 15/9C$ 761

Fri 5/127:35 a.m.SEA - BCN

2 stops25h 45mScandinavian Airlines

Sun 14/127:10 p.m.BCN - SEA

2 stops32h 50mScandinavian Airlines

Deal found 14/9C$ 800

Thu 12/310:55 a.m.SEA - BCN

2 stops23h 25mScandinavian Airlines

Sun 15/37:10 p.m.BCN - SEA

2 stops35h 15mScandinavian Airlines

Deal found 14/9C$ 803

Fri 13/310:55 a.m.SEA - BCN

2 stops23h 25mScandinavian Airlines

Mon 23/37:10 p.m.BCN - SEA

2 stops35h 15mScandinavian Airlines

Deal found 15/9C$ 816

Thu 6/117:25 a.m.SEA - BCN

2 stops25h 55mScandinavian Airlines

Wed 26/117:10 p.m.BCN - SEA

2 stops36h 51mScandinavian Airlines

Deal found 14/9C$ 816

Last-minute flights from Seattle to Barcelona
Discover last-minute flight deals from Seattle to Barcelona. Data last updated 15 September 2025 and is based on user searches.

Fri 26/94:20 p.m.SEA - BCN

1 stop31h 30mScandinavian Airlines

Wed 29/107:10 p.m.BCN - SEA

2 stops35h 12mScandinavian Airlines

Deal found 15/9C$ 927

Sun 28/97:35 p.m.SEA - BCN

1 stop17h 50mMultiple Airlines

Fri 31/1010:50 a.m.BCN - SEA

1 stop16h 30mMultiple Airlines

Deal found 15/9C$ 818

Sun 28/94:20 p.m.SEA - BCN

1 stop16h 50mScandinavian Airlines

Wed 29/107:10 p.m.BCN - SEA

2 stops35h 12mScandinavian Airlines

Deal found 15/9C$ 872

Wed 1/1010:09 a.m.SEA - BCN

1 stop15h 01mBritish Airways

Wed 8/1010:45 a.m.BCN - SEA

1 stop22h 42mBritish Airways

Deal found 15/9C$ 689

Wed 8/101:30 p.m.SEA - BCN

1 stop17h 20mBritish Airways

Wed 15/1010:45 a.m.BCN - SEA

1 stop19h 01mBritish Airways

Deal found 14/9C$ 827

Thu 9/1010:25 a.m.SEA - BCN

2 stops37h 25mScandinavian Airlines

Thu 16/1010:30 a.m.BCN - SEA

2 stops36h 30mScandinavian Airlines

Deal found 14/9C$ 713

Fri 10/101:30 p.m.SEA - BCN

1 stop20h 35mBritish Airways

Wed 15/1010:45 a.m.BCN - SEA

1 stop22h 42mBritish Airways

Deal found 15/9C$ 758

Tue 14/108:20 p.m.SEA - BCN

1 stop15h 05mBritish Airways

Tue 21/1010:15 a.m.BCN - SEA

2 stops19h 31mBritish Airways

Deal found 15/9C$ 862

Sun 19/108:20 p.m.SEA - BCN

1 stop15h 00mBritish Airways

Mon 27/109:00 p.m.BCN - SEA

1 stop23h 30mBritish Airways

Deal found 15/9C$ 952

Mon 20/107:35 p.m.SEA - BCN

1 stop17h 50mMultiple Airlines

Mon 27/1010:50 a.m.BCN - SEA

1 stop16h 30mMultiple Airlines

Deal found 15/9C$ 890

Sun 26/1010:54 p.m.SEA - BCN

1 stop26h 06mMultiple Airlines

Tue 11/1110:05 a.m.BCN - SEA

2 stops21h 19mMultiple Airlines

Deal found 15/9C$ 707

One-way flights from Seattle to Barcelona
Search for one-way flight options from Seattle to Barcelona. Find affordable one-way fares based on user searches. Data last updated 15 September 2025.

Wed 10/123:10 p.m.SEA - BCN

2 stops19h 10mWestJet

Deal found 14/9C$ 542

Mon 13/101:30 p.m.SEA - BCN

1 stop22h 05mBritish Airways

Deal found 15/9C$ 588

Sun 26/1012:34 a.m.SEA - BCN

2 stops24h 26mMultiple Airlines

Deal found 15/9C$ 595

Fri 10/103:45 p.m.SEA - BCN

1 stop14h 00mIcelandair

Deal found 14/9C$ 597

Sat 1/119:20 p.m.SEA - BCN

1 stop25h 45mMultiple Airlines

Deal found 15/9C$ 609

Thu 6/116:50 p.m.SEA - BCN

1 stop33h 50mBritish Airways

Deal found 14/9C$ 658

Wed 5/1112:59 a.m.SEA - BCN

2 stops23h 01mMultiple Airlines

Deal found 15/9C$ 664

Thu 27/1112:59 a.m.SEA - BCN

2 stops21h 06mMultiple Airlines

Deal found 15/9C$ 682

Sat 4/1012:59 a.m.SEA - BCN

1 stop24h 11mMultiple Airlines

Deal found 13/9C$ 734

Sun 23/111:33 a.m.SEA - BCN

2 stops20h 32mMultiple Airlines

Deal found 14/9C$ 754

Wed 22/1012:59 a.m.SEA - BCN

1 stop24h 11mMultiple Airlines

Deal found 15/9C$ 803

Mon 9/312:40 a.m.SEA - BCN

2 stops22h 20mDelta

Deal found 14/9C$ 819

Fly from

Fly to

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 20/2

10:55 a.m.-6:20 p.m.

2 stops22h 25m

Barcelona-El Prat

Sun 1/3

7:10 p.m.-6:56 p.m.

2 stops32h 46m

C$ 703

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 9/11

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

2 stops45h 00m

Barcelona-El Prat

Sat 22/11

7:10 p.m.-11:58 p.m.

2 stops37h 48m

C$ 720

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 9/3

12:00 p.m.-6:20 p.m.

2 stops46h 20m

Barcelona-El Prat

Mon 16/3

7:10 p.m.-10:25 p.m.

2 stops35h 15m

C$ 720

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 14/3

2:00 p.m.-6:20 p.m.

2 stops44h 20m

Barcelona-El Prat

Mon 23/3

7:10 p.m.-10:25 p.m.

2 stops35h 15m

C$ 761

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 6/11

5:24 a.m.-9:00 a.m.

2 stops18h 36m

Barcelona-El Prat

Tue 11/11

10:05 a.m.-10:24 p.m.

2 stops21h 19m

C$ 772

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 28/11

1:35 p.m.-11:35 a.m.

1 stop13h 00m

Barcelona-El Prat

Thu 4/12

11:15 a.m.-11:01 p.m.

2 stops20h 46m

C$ 793

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 5/12

7:35 a.m.-6:20 p.m.

2 stops25h 45m

Barcelona-El Prat

Sun 14/12

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

2 stops32h 50m

C$ 800

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 12/3

10:55 a.m.-6:20 p.m.

2 stops23h 25m

Barcelona-El Prat

Sun 15/3

7:10 p.m.-10:25 p.m.

2 stops35h 15m

C$ 803

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 13/3

10:55 a.m.-6:20 p.m.

2 stops23h 25m

Barcelona-El Prat

Mon 23/3

7:10 p.m.-10:25 p.m.

2 stops35h 15m

C$ 816

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 6/11

7:25 a.m.-6:20 p.m.

2 stops25h 55m

Barcelona-El Prat

Wed 26/11

7:10 p.m.-11:01 p.m.

2 stops36h 51m

C$ 816

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 20 results

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?

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 4 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$ 604). Flying from Seattle to Barcelona in July is currently the most expensive (average of C$ 794). 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?

One of the essential ways to save on airfare from Seattle to Barcelona is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 38% on airfare.

Reviews of airlines servicing Barcelona

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

7,407 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Lufthansa

6.8

Okay

7,407 reviews

Lufthansa

6.8

Okay

7,407 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Related info for your journey

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 13h. The distance between Seattle and Barcelona is about 8724 km. This flight may include one or multiple stops.
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$ 713 on this airline. Users have found that Lufthansa is 38% 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$ 604). Flying from Seattle to Barcelona in July is currently the most expensive (average of C$ 794). 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

Alternative routes for Seattle to Barcelona

Seattle to Barcelona-El Prat flights

Complete your trip

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Barcelona-El Prat Airport car rentals

Girona Costa Brava Airport car rentals

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Tarragona car rentals

Gothic Quarter car rentals

Eixample car rentals

Gracia car rentals

Sant Marti car rentals

La Barceloneta car rentals

Sants-Montjuïc car rentals

El Poblenou car rentals

Top airline flying from Seattle to Barcelona

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	CheapestC$ 713	AverageC$ 789	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

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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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.

Cheap flights from Seattle to Barcelona from C$ 542

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Barcelona

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Barcelona

Cheapest flights from Seattle to BarcelonaExplore 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 15 September 2025.

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 15 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.

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.

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 12 September 2025.

What is the cheapest month to book a flight from Seattle to Barcelona?

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

Find hourly flight availability from Seattle to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

Reviews of airlines servicing Barcelona

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.

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?

How long is the flight from Seattle to Barcelona?

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

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

How can I find direct flights from Seattle to Barcelona?

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

What is the cheapest month to book a flight from Seattle to Barcelona?

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.

Alternative routes for Seattle to Barcelona

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

Top airline flying from Seattle to Barcelona

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?

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

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

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

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Travel Smart

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 15 September 2025.