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$331+ Cheap flights from Barcelona-El Prat (BCN) to Seattle (SEA)

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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SEA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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1. Tell us where you want to go
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The best prices from Barcelona-El Prat to Seattle/Tacoma Intl are usually found in May or November, booked 53 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Barcelona-El Prat to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to Seattle (SEA). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$461
(KAYAK)

One-way from

$331
(Kiwi.com)

Popular in

July

Cheapest in

May

Average price

$763
Provider with most accurate pricing for Barcelona-El Prat-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Barcelona-El Prat-Seattle/Tacoma Intl flights.
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From Barcelona-El Prat to Seattle/Tacoma Intl
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One-way flight from Barcelona-El Prat to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 13% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($17 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 Barcelona-El Prat to Seattle

Cheapest flights from Barcelona-El Prat to Seattle
Explore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This KAYAK deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/77:00 pmBCN - SEA
1 stop27h 50mScandinavian Airlines
Sat 6/144:00 pmSEA - BCN
1 stop17h 10mScandinavian Airlines
Deal found 2/20$461
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/612:15 pmBCN - SEA
2 stops39h 30mUnited Airlines
Sun 3/911:59 pmSEA - BCN
2 stops33h 31mUnited Airlines
Deal found 2/20$579
This Air Canada deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/512:15 pmBCN - SEA
2 stops35h 15mAir Canada
Wed 3/126:05 amSEA - BCN
2 stops22h 10mAir Canada
Deal found 2/19$594
This British Airways deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/61:30 pmBCN - SEA
1 stop17h 27mBritish Airways
Sun 3/97:50 pmSEA - BCN
1 stop18h 35mBritish Airways
Deal found 2/20$595
This Mytrip deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:50 amBCN - SEA
1 stop14h 20mLufthansa
Wed 3/123:00 pmSEA - BCN
1 stop14h 10mLufthansa
Deal found 2/19$608
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:00 amBCN - SEA
1 stop14h 37mDelta
Sun 3/91:35 pmSEA - BCN
1 stop17h 05mDelta
Deal found 2/20$610
This SWISS deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/69:40 amBCN - SEA
2 stops46h 03mSWISS
Sun 4/1310:50 amSEA - BCN
2 stops51h 45mSWISS
Deal found 2/20$651
This Expedia deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1311:15 amBCN - SEA
2 stops30h 35mMultiple Airlines
Thu 3/206:05 amSEA - BCN
2 stops33h 00mMultiple Airlines
Deal found 2/20$657
This Expedia deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:00 amBCN - SEA
1 stop14h 20mAir France
Tue 11/111:35 pmSEA - BCN
1 stop12h 35mAir France
Deal found 2/20$747
This Finnair deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2711:00 amBCN - SEA
1 stop21h 24mFinnair
Wed 3/1210:41 amSEA - BCN
2 stops25h 24mFinnair
Deal found 2/20$814
This Expedia deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:00 amBCN - SEA
2 stops18h 54mKLM
Wed 3/123:15 pmSEA - BCN
1 stop13h 00mKLM
Deal found 2/20$862
This Booking.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/107:30 amBCN - SEA
1 stop18h 45mTurkish Airlines
Mon 4/217:10 pmSEA - BCN
1 stop19h 00mTurkish Airlines
Deal found 2/20$863

Find flights from Barcelona-El Prat to Seattle within your budget

Customize your flight search to find flights from Barcelona-El Prat to Seattle 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 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Barcelona-El Prat

Fly to

Seattle

Route

Depart

Return

Price

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sat 6/7

7:00 pm-1:50 pm

1 stop27h 50m

Seattle/Tacoma Intl

Sat 6/14

4:00 pm-6:10 pm

1 stop17h 10m

$461

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 3/6

12:15 pm-6:45 pm

2 stops39h 30m

Seattle/Tacoma Intl

Sun 3/9

11:59 pm-5:30 pm

2 stops33h 31m

$579

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 3/5

12:15 pm-2:30 pm

2 stops35h 15m

Seattle/Tacoma Intl

Wed 3/12

6:05 am-12:15 pm

2 stops22h 10m

$594

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 3/6

1:30 pm-9:57 pm

1 stop17h 27m

Seattle/Tacoma Intl

Sun 3/9

7:50 pm-10:25 pm

1 stop18h 35m

$595

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 3/5

6:50 am-12:10 pm

1 stop14h 20m

Seattle/Tacoma Intl

Wed 3/12

3:00 pm-1:10 pm

1 stop14h 10m

$608

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 3/6

6:00 am-11:37 am

1 stop14h 37m

Seattle/Tacoma Intl

Sun 3/9

1:35 pm-2:40 pm

1 stop17h 05m

$610

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sun 4/6

9:40 am-10:43 pm

2 stops46h 03m

Seattle/Tacoma Intl

Sun 4/13

10:50 am-11:35 pm

2 stops51h 45m

$651

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 3/13

11:15 am-9:50 am

2 stops30h 35m

Seattle/Tacoma Intl

Thu 3/20

6:05 am-11:05 pm

2 stops33h 00m

$657

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 6/3

12:20 pm-5:30 pm

1 stop14h 10m

Seattle/Tacoma Intl

Fri 6/20

6:45 pm-8:20 pm

1 stop16h 35m

$858

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 4/10

7:30 am-5:15 pm

1 stop18h 45m

Seattle/Tacoma Intl

Mon 4/21

7:10 pm-11:10 pm

1 stop19h 00m

$863

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 25 results
1
2
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Compare providers for flights from Barcelona-El Prat to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Barcelona-El Prat to Seattle in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Barcelona-El Prat Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Barcelona-El Prat Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Barcelona-El Prat Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Barcelona-El Prat Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Barcelona-El Prat Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Barcelona-El Prat to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Barcelona-El Prat 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 Barcelona-El Prat to Seattle

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

How far ahead should I book a flight from Barcelona-El Prat Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to Seattle. Price data was last updated on February 14, 2025.

The price you pay for your flight from Barcelona-El Prat Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 53 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 Barcelona-El Prat Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $238). Flying from Barcelona-El Prat Airport to Seattle in July is currently the most expensive (average of $411). 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 BCN to SEA?

Find hourly flight availability from Barcelona-El Prat to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from Barcelona-El Prat Airport to Seattle by exploring options for tickets in the morning.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 20, 2025.
To help decide which airline to fly from Barcelona to Seattle, see what other customers have to say about Delta, KLM and Austrian Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat to Seattle. 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 into for flights to Seattle from Barcelona-El Prat?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Barcelona-El Prat to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Barcelona-El Prat; the airport handles an average of 0 inbound flights from Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Seattle airport from Barcelona-El Prat. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

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

    According to our current data, Scandinavian Airlines ($461), United Airlines ($579), and Air Canada ($594) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that Scandinavian Airlines is 45% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Scandinavian Airlines. According to our data, you can fly for as low as $459. Users have also found prices from $561 and $566 on WestJet and Aer Lingus, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Barcelona-El Prat to Seattle 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 Barcelona-El Prat Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $238). Flying from Barcelona-El Prat Airport to Seattle in July is currently the most expensive (average of $411). 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

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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Alternative routes for Barcelona-El Prat to Seattle

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

Top 5 airlines flying from Barcelona-El Prat to Seattle

Discover the top 5 airlines that operate flights from Barcelona-El Prat to Seattle. 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 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$652Average$878FlexibilityNo cancel feeOn-time77%
DeltaCheapest$686Average$784FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$689Average$933FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$704Average$944FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$720Average$950FlexibilityNo cancel feeOn-time70%
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