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Barcelona-El Prat

$319+ Cheap flights from Seattle (SEA) to Barcelona-El Prat (BCN)

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Barcelona-El Prat are usually found in November or February, booked 31 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Barcelona-El Prat

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

$566
(Delta)

One-way from

$319
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$688
Provider with most accurate pricing for Seattle/Tacoma Intl-Barcelona-El Prat flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Barcelona-El Prat flights.
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From Seattle/Tacoma Intl to Barcelona-El Prat
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One-way flight from Seattle/Tacoma Intl to Barcelona-El Prat
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Highest demand for flights based on searches. 21% potential increase in price ($247 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 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-El Prat

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

This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/316:45 pmSEA - BCN
1 stop18h 40mAer Lingus
Tue 4/811:00 amBCN - SEA
1 stop14h 59mAer Lingus
Deal found 2/20$567
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:00 pmSEA - BCN
2 stops17h 15mMultiple Airlines
Wed 5/72:25 pmBCN - SEA
1 stop15h 03mMultiple Airlines
Deal found 2/20$594
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.
Sun 11/98:00 amSEA - BCN
1 stop15h 20mUnited Airlines
Wed 11/1912:15 pmBCN - SEA
2 stops41h 57mUnited Airlines
Deal found 2/20$597
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:50 pmSEA - BCN
1 stop16h 20mBritish Airways
Wed 11/191:30 pmBCN - SEA
1 stop17h 19mBritish Airways
Deal found 2/20$618
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/15:45 amSEA - BCN
2 stops18h 35mAir Canada
Tue 4/812:10 pmBCN - SEA
2 stops18h 16mAir Canada
Deal found 2/20$632
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/138:00 pmSEA - BCN
1 stop31h 00mTurkish Airlines
Tue 3/257:50 amBCN - SEA
1 stop18h 15mTurkish Airlines
Deal found 2/20$638
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2311:14 pmSEA - BCN
1 stop25h 46mAmerican Airlines
Tue 4/810:45 amBCN - SEA
1 stop21h 24mAmerican Airlines
Deal found 2/20$672
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:20 pmSEA - BCN
1 stop16h 50mScandinavian Airlines
Thu 9/2510:30 amBCN - SEA
2 stops36h 30mScandinavian Airlines
Deal found 2/20$789
This StudentUniverse 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:31 amSEA - BCN
2 stops22h 34mSWISS
Wed 10/299:50 amBCN - SEA
2 stops20h 39mSWISS
Deal found 2/20$813

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

Customize your flight search to find flights from Seattle to Barcelona-El Prat 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

Seattle

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 3/31

6:45 pm-10:25 pm

1 stop18h 40m

Barcelona-El Prat

Tue 4/8

11:00 am-4:59 pm

1 stop14h 59m

$567

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/29

7:00 pm-9:15 pm

2 stops17h 15m

Barcelona-El Prat

Wed 5/7

2:25 pm-8:28 pm

1 stop15h 03m

$594

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/1

5:45 am-9:20 am

2 stops18h 35m

Barcelona-El Prat

Tue 4/8

12:10 pm-9:26 pm

2 stops18h 16m

$632

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 3/13

8:00 pm-11:00 am

1 stop31h 00m

Barcelona-El Prat

Tue 3/25

7:50 am-6:05 pm

1 stop18h 15m

$638

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/1

6:05 am-9:20 am

1 stop18h 15m

Barcelona-El Prat

Tue 4/8

12:10 pm-10:50 pm

3 stops43h 40m

$661

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 3/23

11:14 pm-9:00 am

1 stop25h 46m

Barcelona-El Prat

Tue 4/8

10:45 am-11:09 pm

1 stop21h 24m

$672

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 4/2

2:15 pm-3:30 pm

1 stop16h 15m

Barcelona-El Prat

Sun 4/6

6:55 pm-12:25 pm

1 stop26h 30m

$864

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 5/12

1:30 pm-8:35 pm

1 stop22h 05m

Barcelona-El Prat

Mon 5/19

7:10 pm-11:10 am

1 stop25h 00m

$873

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 3/4

11:30 am-12:45 am

3 stops28h 15m

$323

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 6/10

7:05 am-12:25 pm

1 stop20h 20m

$464

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 20 results
1
2

Compare providers for flights from Seattle to Barcelona-El Prat

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 Seattle to Barcelona-El Prat in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 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 Seattle-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Barcelona-El Prat Airport 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 Seattle-Barcelona-El Prat Airport 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 Seattle to Barcelona-El Prat

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

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

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

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

The price you pay for your flight from Seattle to Barcelona-El Prat Airport 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-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of $523). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,096). 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-El Prat. 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.

A simple way to save on the total cost of your ticket is to fly from Seattle to Barcelona-El Prat Airport in the evening. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Seattle to Barcelona-El Prat Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Barcelona-El Prat. Price data was last updated on December 16, 2024.

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

Rainfall in Barcelona-El Prat by month

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

In terms of precipitation, rainfall in Barcelona-El Prat Airport ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona-El Prat Airport when rainfall is around 0.8 in.

Temperature in Barcelona-El Prat by month

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

If weather is an important factor for your trip to Barcelona-El Prat Airport, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. 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-El Prat. Reviews last updated February 20, 2025.
See what other customers who have flown with Delta, KLM and SWISS from Seattle to Barcelona have to say. 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
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

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

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

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

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

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.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

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

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

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

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

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-El Prat. 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-El Prat?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Barcelona-El Prat. 15 airlines have flights from Seattle/Tacoma Intl to Barcelona-El Prat on a regular basis. Booking flights from Seattle/Tacoma Intl to Barcelona-El Prat should not be difficult; the airport handles an average of 0 outbound flights to Barcelona-El Prat per day.

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

    According to our current data, Delta ($566), Aer Lingus ($567), and British Airways ($569) offers the cheapest pricing from Seattle to Barcelona-El Prat Airport. Delta is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Seattle to Barcelona-El Prat Airport are WestJet ($471), Turkish Airlines ($479), and British Airways ($518).

  • Where are the most common layover locations when flying from Seattle to Barcelona-El Prat Airport?

    Seattle to Barcelona-El Prat Airport flights have a layover in London most of the time. Paris sees the second most layovers for non-direct flights flying from Seattle to Barcelona-El Prat Airport. Calgary comes in third as the most popular layover location on Seattle to Barcelona-El Prat Airport flights.

  • What are some popular things to do or see while on a layover in London?

    London travelers tend to visit Hyde Park, Piccadilly Circus, and Buckingham Palace more than anywhere else. Hyde Park, Piccadilly Circus, and Buckingham Palace are located about 12.5 mi, 14.1 mi, and 13.7 mi, respectively from London Heathrow. Those on a layover in London in need of a rental car can book one at London Heathrow for about $36.

  • What are some popular points of interest to see during a layover in Paris?

    Eiffel Tower, Champs-Elysées, and Louvre Museum are the most popular attractions in Paris if you're in need of something to do during your layover. Eiffel Tower, Champs-Elysées, and Louvre Museum can be visited by traveling about 15.8 mi, 14.7 mi, and 14.3 mi respectively from Paris Charles de Gaulle. Those looking to explore during their layover in Paris can rent a car from Paris Charles de Gaulle for about $38 per day.

  • What are points of interest worth seeing during a layover in Calgary?

    Calgary travelers tend to visit Calgary Tower, Heritage Park Historical Village, and TELUS Spark more than any other attractions. Calgary Tower, Heritage Park Historical Village, and TELUS Spark are located about 5.9 mi, 10.5 mi, and 6.2 mi, respectively from Calgary. Travelers can rent a car at Calgary for an average daily rate of $41 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Seattle to Barcelona-El Prat Airport flights?

    The least popular layover on flights from Seattle to Barcelona-El Prat Airport is Dublin. Chicago is the second least popular location for layovers on flights from Seattle to Barcelona-El Prat Airport. Amsterdam comes next as the third least popular layover location for Seattle to Barcelona-El Prat Airport flights.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of $523). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,096). 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 Seattle to Barcelona-El Prat

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

Top 10 airlines flying from Seattle to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Seattle to Barcelona-El Prat. 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
IcelandairCheapest$416Average$628FlexibilityNo cancel feeOn-time76%
WestJetCheapest$445Average$901FlexibilityNo cancel feeOn-time60%
Aer LingusCheapest$501Average$828FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$525Average$811FlexibilityNo cancel feeOn-time77%
KLMCheapest$527Average$909FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$560Average$652FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$563Average$882FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$569Average$891FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$581Average$990FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$622Average$951FlexibilityNo cancel feeOn-time69%
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