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$410+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SEA
Jul 7 — Jul 141
Tue 7/7
Tue 7/14
1 adult, Economy
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Cheap 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 June 7, 2026.

This Expedia deal was found by Cheapflights users on 6/5. 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.
Mon 9/710:15 am
BCN
-
SEA
1 stop14h 55m
Condor
Tue 9/296:05 pm
SEA
-
BCN
1 stop19h 05m
Condor
Deal found 6/5$634
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:15 am
BCN
-
SEA
1 stop14h 45m
Condor
Mon 9/146:10 pm
SEA
-
BCN
1 stop19h 00m
Condor
Deal found 6/7$661
This Trip.com deal was found by Cheapflights users on 6/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am
BCN
-
SEA
1 stop17h 00m
Condor
Sun 9/205:40 pm
SEA
-
BCN
1 stop13h 20m
Condor
Deal found 6/5$669
This Gotogate deal was found by Cheapflights users on 6/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:00 pm
BCN
-
SEA
1 stop32h 10m
Condor
Mon 9/216:10 pm
SEA
-
BCN
1 stop19h 00m
Condor
Deal found 6/3$670
This Gotogate deal was found by Cheapflights users on 6/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Tue 9/226:05 pm
SEA
-
BCN
1 stop19h 05m
Condor
Deal found 6/6$678
This Gotogate deal was found by Cheapflights users on 6/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 am
BCN
-
SEA
1 stop17h 00m
Condor
Sun 10/256:35 pm
SEA
-
BCN
1 stop19h 35m
Condor
Deal found 6/5$680
This Expedia deal was found by Cheapflights users on 6/5. 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.
Sun 9/610:25 am
BCN
-
SEA
1 stop14h 15m
Condor
Mon 9/286:10 pm
SEA
-
BCN
1 stop19h 00m
Condor
Deal found 6/5$689
This Condor deal was found by Cheapflights users on 6/3. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:00 am
BCN
-
SEA
1 stop17h 10m
Condor
Sun 9/205:40 pm
SEA
-
BCN
1 stop19h 30m
Condor
Deal found 6/3$692
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:00 am
BCN
-
SEA
1 stop16h 40m
Condor
Sun 7/265:40 pm
SEA
-
BCN
1 stop19h 30m
Condor
Deal found 6/7$706
This lol.travel deal was found by Cheapflights users on 6/3. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:50 pm
BCN
-
SEA
1 stop18h 48m
JetBlue
Fri 9/1811:55 pm
SEA
-
BCN
1 stop24h 50m
JetBlue
Deal found 6/3$708
This Flightnetwork deal was found by Cheapflights users on 6/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:00 am
BCN
-
SEA
2 stops19h 51m
Multiple Airlines
Tue 9/296:05 pm
SEA
-
BCN
1 stop19h 05m
Multiple Airlines
Deal found 6/5$709
This Condor deal was found by Cheapflights users on 6/7. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:00 am
BCN
-
SEA
1 stop17h 00m
Condor
Mon 9/146:10 pm
SEA
-
BCN
1 stop19h 00m
Condor
Deal found 6/7$710

Find 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 June 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$661
(Kiwi.com)

One-way from

$410
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$973

Good round-trip deal

$933 or less

Good one-way deal

$1,339 or less
Provider with most accurate pricing for Barcelona-El Prat-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Barcelona-El Prat-Seattle/Tacoma Intl flights.
Search Deals
From Barcelona-El Prat to Seattle/Tacoma Intl
Search Deals
One-way flight from Barcelona-El Prat to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Barcelona-El Prat to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Barcelona-El Prat to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
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 June 7, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 6/11

8:00 am-11:07 pm

2 stops24h 07m

Seattle/Tacoma Intl

Mon 6/15

6:10 pm-10:10 pm

1 stop19h 00m

$740

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sun 7/26

10:25 am-3:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Thu 8/13

6:05 pm-4:05 pm

1 stop13h 00m

$980

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 7/28

8:00 am-3:40 pm

1 stop16h 40m

Seattle/Tacoma Intl

Mon 8/17

6:10 pm-10:10 pm

1 stop19h 00m

$980

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 7/3

12:50 pm-12:27 pm

1 stop32h 37m

Seattle/Tacoma Intl

Fri 7/17

11:44 pm-9:45 am

1 stop25h 01m

$1,006
Quickest round-trip

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 6/26

1:20 pm-3:35 pm

Nonstop11h 15m

Seattle/Tacoma Intl

Thu 7/9

3:35 pm-11:10 am

Nonstop10h 35m

$1,018

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 6/26

8:00 am-8:37 pm

2 stops21h 37m

Seattle/Tacoma Intl

Thu 7/9

11:15 am-10:10 pm

2 stops25h 55m

$1,022

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 7/29

1:20 pm-3:35 pm

Nonstop11h 15m

Seattle/Tacoma Intl

Thu 8/6

3:35 pm-11:10 am

Nonstop10h 35m

$1,026

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 7/1

1:20 pm-3:35 pm

Nonstop11h 15m

Seattle/Tacoma Intl

Sat 7/18

3:35 pm-11:10 am

Nonstop10h 35m

$1,027

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 7/29

1:20 pm-3:35 pm

Nonstop11h 15m

Seattle/Tacoma Intl

Thu 8/6

6:40 pm-5:10 pm

1 stop13h 30m

$1,054
Cheapest one-way
Quickest one-way

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 8/31

11:00 am-5:10 pm

1 stop15h 10m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Showing 1-10 of 21 resultsSorted by cheapest first
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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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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.

Cheapflights Insights

Everything you need to know about your flight from Barcelona-El Prat Airport to Seattle

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

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 75 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, September is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $794). Flying from Barcelona-El Prat Airport to Seattle in July is currently the most expensive (average of $1,010). 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 June 7, 2026.

When flying from Barcelona-El Prat Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Barcelona-El Prat Airport to Seattle?

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 June 7, 2026.
See what other customers who have flown with Delta,Lufthansa, andBritish Airways from Barcelona-El Prat Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.9
Good
8,396 reviews
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Lufthansa
6.8
Okay
8,044 reviews
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
British Airways
6.7
Okay
8,027 reviews
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Condor
6.5
Okay
434 reviews
Delta
7.9
Good
8,396 reviews

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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 4 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.

  • How long is the flight from Barcelona-El Prat Airport to Seattle?

    Airlines like Condor, JetBlue, and Delta fly from Barcelona-El Prat Airport to Seattle in about 11h 15m. The time it takes to get you to your destination can typically vary by up to 21h 22m. Barcelona-El Prat Airport and Seattle are separated by a distance of 5421 mi. This flight may include one or multiple stops.

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

    According to our current data, Condor ($600), British Airways ($662), and Lufthansa ($777) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that Condor is 32% 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 WestJet. According to our data, you can fly for as low as $256. Users have also found prices from $448 and $529 on Condor and British Airways, respectively.

  • What are the most reliable airlines from Barcelona-El Prat Airport to Seattle?

    Consider KLM (46%), Air France (46%) or Delta (46%) when booking your flight. These represent the most reliable airlines when flying from Barcelona-El Prat Airport to Seattle.

  • What are the cheapest flights from Barcelona-El Prat Airport to Seattle?

    While on average a flight from Barcelona-El Prat Airport to Seattle is generally $1,251, our data shows the cheapest flight currently is $873. When looking at the most popular route, (Barcelona-El Prat - Seattle/Tacoma Intl), you can expect to pay $634 for that flight.

  • 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, September is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $794). Flying from Barcelona-El Prat Airport to Seattle in July is currently the most expensive (average of $1,010). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
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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

Top 4 airlines flying from Barcelona-El Prat to Seattle

Discover the top 4 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 June 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
CondorCheapest$600Average$700FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$662Average$836FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$777Average$837FlexibilityNo cancel feeOn-time76%
DeltaCheapest$814Average$840FlexibilityNo cancel feeOn-timeN/A

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