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Cheap flights from Seattle to Barcelona from C$ 672

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
26 Feb — 5 Mar1
1 adult

Cheap 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 21 February 2025.

Round-trip from

C$ 804

One-way from

C$ 672

Popular in

July

Cheapest in

November

Average price

C$ 977
Delta
  • Delta
  • 2/4-8/4
  • 2 total stops
  • 35h 50m total
  • Seattle to Barcelona
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WestJet
  • WestJet
  • 10/6
  • 1 total stop
  • 13h 20m total
  • Seattle to Barcelona
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Highest demand for flights based on searches. 21% potential increase in price (C$ 497 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 64 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 21 February 2025.

Wed 2/41:30 p.m.SEA - BCN
1 stop17h 10mDelta
Tue 8/46:20 a.m.BCN - SEA
1 stop18h 40mDelta
Deal found 19/2C$ 804
Mon 3/37:00 p.m.SEA - BCN
1 stop37h 15mTurkish Airlines
Tue 11/36:25 p.m.BCN - SEA
1 stop31h 40mTurkish Airlines
Deal found 19/2C$ 935
Tue 18/32:44 p.m.SEA - BCN
3 stops34h 06mUnited Airlines
Tue 1/412:10 p.m.BCN - SEA
2 stops32h 38mUnited Airlines
Deal found 18/2C$ 936
Tue 18/33:15 p.m.SEA - BCN
1 stop13h 00mKLM
Mon 31/37:40 p.m.BCN - SEA
1 stop29h 00mKLM
Deal found 18/2C$ 945
Sun 16/37:50 p.m.SEA - BCN
1 stop16h 20mMultiple Airlines
Wed 26/38:45 a.m.BCN - SEA
2 stops22h 24mMultiple Airlines
Deal found 19/2C$ 1,040
Thu 13/32:00 p.m.SEA - BCN
2 stops40h 00mAir France
Fri 21/36:00 a.m.BCN - SEA
2 stops25h 13mAir France
Deal found 19/2C$ 1,121
Sun 9/39:00 p.m.SEA - BCN
1 stop15h 15mAer Lingus
Wed 12/38:40 a.m.BCN - SEA
1 stop18h 35mAer Lingus
Deal found 19/2C$ 1,207
Wed 2/42:15 p.m.SEA - BCN
1 stop16h 15mLufthansa
Sun 6/46:55 p.m.BCN - SEA
1 stop26h 30mLufthansa
Deal found 20/2C$ 1,227
Tue 18/37:50 p.m.SEA - BCN
1 stop16h 00mBritish Airways
Sun 30/38:40 p.m.BCN - SEA
1 stop23h 55mBritish Airways
Deal found 18/2C$ 1,243
Mon 28/77:35 p.m.SEA - BCN
1 stop31h 50mWestJet
Wed 6/82:25 p.m.BCN - SEA
2 stops31h 06mWestJet
Deal found 20/2C$ 1,325

Find flights from Seattle to Barcelona within your budget

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 21 February 2025.

Fly from

Seattle

Fly to

Barcelona

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 2/4

1:30 p.m.-3:40 p.m.

1 stop17h 10m

Barcelona-El Prat

Tue 8/4

6:20 a.m.-4:00 p.m.

1 stop18h 40m

C$ 804

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 3/3

7:00 p.m.-5:15 p.m.

1 stop37h 15m

Barcelona-El Prat

Tue 11/3

6:25 p.m.-6:05 p.m.

1 stop31h 40m

C$ 935

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 18/3

2:44 p.m.-8:50 a.m.

3 stops34h 06m

Barcelona-El Prat

Tue 1/4

12:10 p.m.-11:48 a.m.

2 stops32h 38m

C$ 936

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 18/3

3:15 p.m.-12:15 p.m.

1 stop13h 00m

Barcelona-El Prat

Mon 31/3

7:40 p.m.-3:40 p.m.

1 stop29h 00m

C$ 945

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 16/3

7:50 p.m.-8:10 p.m.

1 stop16h 20m

Barcelona-El Prat

Wed 26/3

8:45 a.m.-11:09 p.m.

2 stops22h 24m

C$ 1,040

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 13/3

2:00 p.m.-2:00 p.m.

2 stops40h 00m

Barcelona-El Prat

Fri 21/3

6:00 a.m.-11:13 p.m.

2 stops25h 13m

C$ 1,121

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 9/3

9:00 p.m.-8:15 p.m.

1 stop15h 15m

Barcelona-El Prat

Wed 12/3

8:40 a.m.-7:15 p.m.

1 stop18h 35m

C$ 1,207

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 2/4

2:15 p.m.-3:30 p.m.

1 stop16h 15m

Barcelona-El Prat

Sun 6/4

6:55 p.m.-12:25 p.m.

1 stop26h 30m

C$ 1,227

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 18/3

7:50 p.m.-7:50 p.m.

1 stop16h 00m

Barcelona-El Prat

Sun 30/3

8:40 p.m.-11:35 a.m.

1 stop23h 55m

C$ 1,243

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 28/7

7:35 p.m.-12:25 p.m.

1 stop31h 50m

Barcelona-El Prat

Wed 6/8

2:25 p.m.-12:31 p.m.

2 stops31h 06m

C$ 1,325

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 17 results
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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.

Travel insights for flights from Seattle to Barcelona

Get recent, data-driven insights about flights from Seattle to Barcelona including ideal travel times, pricing trends, and more.

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 14 February 2025.

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 31 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$ 802). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

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.

Rainfall in Barcelona by month

Plan your trip to Barcelona by taking into account the average rainfall totals by month.

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.

Temperature in Barcelona by month

Plan your trip to Barcelona by taking into account the average temperature totals by month.

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).

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 21 February 2025.
Delta
8.0
Very good
8,219 reviews
Check prices

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,832 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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. 0 airlines 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.

  • What are the cheapest airlines flying from Seattle to Barcelona round-trip?

    Our cheapest airline available from Seattle to Barcelona is Delta. Our recent data shows that you can find tickets from as low as C$ 804 on this airline. Additional options worth looking into are Turkish Airlines and United Airlines, starting at C$ 935 and C$ 936 round-trip. Users have found that Delta is 38% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Barcelona one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 672. Users have also found prices from C$ 710 and C$ 764 on Turkish Airlines and United Airlines, respectively.

  • 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$ 802). 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

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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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