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Barcelona-El Prat

$243+ Cheap flights from Washington 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Washington to Barcelona-El Prat

Keep the following information in mind while searching for Washington to Barcelona-El Prat flight deals. Data was last updated September 15, 2025.

Round-trip from

$449
(oojo)

One-way from

$243
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$742
From Washington to Barcelona-El Prat
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One-way flight from Washington to Barcelona-El Prat
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Highest demand for flights based on searches. 25% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington to Barcelona-El Prat

Cheapest flights from Washington to Barcelona-El Prat
Explore the most affordable flight options available from Washington to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This oojo deal was found by Cheapflights users on 9/12. 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 10/123:45 pmSEA - BCN
1 stop14h 00mIcelandair
Wed 10/223:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/12$449
This oojo deal was found by Cheapflights users on 9/12. 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.
Sat 10/117:00 pmSEA - BCN
1 stop34h 45mIcelandair
Wed 10/223:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/12$451
This Booking.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/117:00 pmSEA - BCN
1 stop34h 45mIcelandair
Fri 10/243:45 pmBCN - SEA
1 stop35h 05mIcelandair
Deal found 9/13$452
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sat 10/187:00 pmSEA - BCN
1 stop34h 45mIcelandair
Sat 10/253:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/15$454
This Booking.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/137:35 pmSEA - BCN
1 stop17h 50mAer Lingus
Wed 10/2211:00 amBCN - SEA
1 stop15h 50mAer Lingus
Deal found 9/15$487
This Mytrip deal was found by Cheapflights users on 9/13. 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.
Sun 10/53:45 pmSEA - BCN
1 stop14h 00mIcelandair
Sat 10/113:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 9/13$494
This Expedia deal was found by Cheapflights users on 9/14. 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 12/16:50 pmSEA - BCN
1 stop18h 40mBritish Airways
Tue 12/1612:30 pmBCN - SEA
1 stop18h 20mBritish Airways
Deal found 9/14$496
This British Airways deal was found by Cheapflights users on 9/15. 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.
Wed 10/110:09 amSEA - BCN
1 stop15h 01mBritish Airways
Wed 10/810:45 amBCN - SEA
1 stop22h 42mBritish Airways
Deal found 9/15$499
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Tue 10/283:35 pmSEA - BCN
2 stops17h 15mMultiple Airlines
Tue 11/45:45 amBCN - SEA
2 stops20h 15mMultiple Airlines
Deal found 9/15$501
This oojo deal was found by Cheapflights users on 9/13. 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.
Sat 9/203:40 pmSEA - BCN
1 stop33h 30mBritish Airways
Tue 10/712:20 pmBCN - SEA
1 stop18h 28mBritish Airways
Deal found 9/13$504
This Finnair deal was found by Cheapflights users on 9/13. 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.
Sun 10/2610:54 pmSEA - BCN
1 stop26h 06mMultiple Airlines
Tue 11/1112:50 pmBCN - SEA
1 stop18h 19mMultiple Airlines
Deal found 9/13$505
This Air Canada deal was found by Cheapflights users on 9/13. 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.
Mon 9/293:25 pmPDX - BCN
2 stops31h 25mAir Canada
Fri 10/3112:35 pmBCN - PDX
2 stops38h 05mAir Canada
Deal found 9/13$505

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 September 15, 2025.
Use the filters below to find and compare flights from Washington to Barcelona-El Prat Airport that are best for you.

Fly from

Washington

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 10/26

10:54 pm-9:00 am

1 stop26h 06m

Barcelona-El Prat

Tue 11/11

12:50 pm-10:09 pm

1 stop18h 19m

$505

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 11/13

7:30 am-6:20 pm

2 stops25h 50m

Barcelona-El Prat

Wed 11/19

7:10 pm-10:25 pm

2 stops36h 15m

$509

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Tue 10/14

5:30 am-2:00 pm

1 stop23h 30m

Barcelona-El Prat

Fri 10/24

12:10 pm-6:31 pm

2 stops39h 21m

$510

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 11/9

7:10 am-6:20 pm

2 stops26h 10m

Barcelona-El Prat

Sun 11/23

7:10 pm-10:00 pm

2 stops35h 50m

$513

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 3/2

11:55 pm-9:00 am

2 stops24h 05m

Barcelona-El Prat

Thu 3/12

12:35 pm-10:08 pm

2 stops41h 33m

$514

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 11/12

2:11 pm-6:20 pm

2 stops43h 09m

Barcelona-El Prat

Fri 11/21

7:10 pm-11:01 pm

2 stops36h 51m

$521

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 11/10

7:30 am-6:20 pm

2 stops25h 50m

Barcelona-El Prat

Thu 11/20

7:10 pm-11:58 pm

2 stops37h 48m

$521

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 11/9

12:20 pm-6:20 pm

2 stops45h 00m

Barcelona-El Prat

Sat 11/22

7:10 pm-11:58 pm

2 stops37h 48m

$521

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 11/6

10:25 am-6:20 pm

2 stops22h 55m

Barcelona-El Prat

Sun 11/23

7:10 pm-11:01 pm

2 stops36h 51m

$521

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 11/11

7:30 am-6:20 pm

2 stops25h 50m

Barcelona-El Prat

Fri 11/21

7:10 pm-11:01 pm

2 stops36h 51m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 41 results
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Best time to book a flight from Washington to Barcelona-El Prat

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

What is the cheapest month to book a flight from State of Washington to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Barcelona-El Prat Airport (average of $523). Flying from State of Washington to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,059). 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 WA to BCN?

Find hourly flight availability from Washington 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Barcelona-El Prat Airport as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Washington 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.

  • How long is the flight from State of Washington to Barcelona-El Prat Airport?

    Departing from State of Washington to Barcelona-El Prat Airport will take you 20h 05m. Airlines will cover a distance of 5267 mi. This flight may include one or multiple stops.

  • What are the most popular routes from State of Washington to Barcelona-El Prat Airport?

    Most travelers choose Seattle/Tacoma Intl - Barcelona-El Prat, Portland - Barcelona-El Prat or Spokane - Barcelona-El Prat when deciding on the best route from State of Washington to Barcelona-El Prat Airport.

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

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

  • How can I find direct flights from Washington 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 Washington to Barcelona-El Prat.

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Barcelona-El Prat Airport?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Barcelona-El Prat Airport (average of $523). Flying from State of Washington to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,059). 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
Calella
Roses
Castelldefels
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar
Santa Susanna

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Alternative routes for Washington to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Washington 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$388Average$604FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$465Average$576FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$478Average$711FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$498Average$746FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$501Average$1,004FlexibilityNo cancel feeOn-time69%
IberiaCheapest$507Average$810FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$552Average$778FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$567Average$860FlexibilityNo cancel feeOn-time76%
KLMCheapest$574Average$887FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$587Average$915FlexibilityNo cancel feeOn-time71%

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