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Barcelona-El Prat

$261+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap 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 February 4, 2026.

This oojo deal was found by Cheapflights users on 2/4. 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 5/33:40 pm
SEA
-
BCN
1 stop14h 05m
Icelandair
Sat 5/93:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/4$404
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 4/223:40 pm
SEA
-
BCN
1 stop14h 05m
Icelandair
Wed 4/293:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/2$408
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 4/143:40 pm
SEA
-
BCN
1 stop14h 05m
Icelandair
Mon 4/204:00 pm
BCN
-
SEA
1 stop13h 40m
Icelandair
Deal found 2/2$409
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 4/237:00 pm
SEA
-
BCN
1 stop34h 45m
Icelandair
Wed 4/293:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/2$410
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:35 pm
SEA
-
BCN
1 stop14h 00m
Icelandair
Tue 3/1711:50 am
BCN
-
SEA
1 stop14h 10m
Icelandair
Deal found 2/3$415
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 4/223:40 pm
SEA
-
BCN
1 stop14h 05m
Icelandair
Sat 5/23:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/2$416
This KAYAK deal was found by Cheapflights users on 2/2. 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.
Tue 4/217:00 pm
SEA
-
BCN
1 stop34h 45m
Icelandair
Wed 4/293:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/2$418
This Expedia deal was found by Cheapflights users on 2/4. 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.
Wed 4/223:40 pm
SEA
-
BCN
1 stop14h 05m
Icelandair
Wed 5/63:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/4$423
This KAYAK deal was found by Cheapflights users on 2/2. 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.
Tue 4/217:00 pm
SEA
-
BCN
1 stop34h 45m
Icelandair
Mon 5/43:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/2$426
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Sun 3/13:10 pm
SEA
-
BCN
1 stop22h 55m
Lufthansa
Sun 3/87:40 am
BCN
-
SEA
1 stop14h 40m
Lufthansa
Deal found 2/2$438
This oojo deal was found by Cheapflights users on 2/2. 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.
Wed 5/67:00 pm
SEA
-
BCN
1 stop34h 45m
Icelandair
Wed 5/133:45 pm
BCN
-
SEA
1 stop13h 55m
Icelandair
Deal found 2/2$445
This Cheapflightsfares deal was found by Cheapflights users on 2/2. 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 3/35:40 am
PDX
-
BCN
1 stop18h 10m
British Airways
Tue 3/109:35 am
BCN
-
PDX
1 stop20h 27m
British Airways
Deal found 2/2$477

Find 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 February 4, 2026.

Round-trip from

$404
(oojo)

One-way from

$261
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$579

Good round-trip deal

$883 or less

Good one-way deal

$648 or less
From Washington to Barcelona-El Prat
Search Deals
One-way flight from Washington to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($277 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Washington to Barcelona-El Prat.
Search Deals
Price to beat on a one-way flight from Washington to Barcelona-El Prat.
Search Deals

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 February 4, 2026.
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

Tue 4/21

8:00 am-8:20 am

1 stop15h 20m

Barcelona-El Prat

Tue 4/28

1:15 pm-4:41 pm

2 stops36h 26m

$472

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 4/11

11:59 pm-1:15 pm

1 stop28h 16m

Barcelona-El Prat

Tue 4/21

1:15 pm-4:37 pm

2 stops36h 22m

$477

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/14

11:59 pm-1:15 pm

1 stop28h 16m

Barcelona-El Prat

Tue 4/21

1:15 pm-4:37 pm

2 stops36h 22m

$477

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 3/4

9:19 am-3:40 pm

1 stop21h 21m

Barcelona-El Prat

Thu 3/12

6:50 am-1:10 pm

1 stop14h 20m

$481

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 3/3

8:17 am-8:20 am

1 stop15h 03m

Barcelona-El Prat

Thu 3/12

6:50 am-1:10 pm

1 stop14h 20m

$481

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 4/20

7:00 am-8:45 am

1 stop16h 45m

Barcelona-El Prat

Mon 4/27

9:20 am-11:10 am

1 stop34h 50m

$483

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 3/9

7:00 am-7:00 am

1 stop16h 00m

Barcelona-El Prat

Sun 3/22

11:10 am-12:25 pm

1 stop33h 15m

$484

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 4/20

1:55 pm-5:35 pm

2 stops18h 40m

Barcelona-El Prat

Mon 4/27

9:20 pm-10:42 pm

2 stops34h 22m

$486

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Tue 3/3

7:00 am-8:00 am

1 stop16h 00m

Barcelona-El Prat

Wed 3/11

9:45 am-10:08 pm

1 stop20h 23m

$487

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Wed 3/4

5:45 pm-10:30 pm

1 stop19h 45m

Barcelona-El Prat

Sun 3/8

9:20 pm-4:55 pm

1 stop27h 35m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 53 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 $353). Flying from State of Washington to Barcelona-El Prat Airport in June is currently the most expensive (average of $861). 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.

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 16h 45m. Airlines will cover a distance of 5529 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $245 on Icelandair. Other airlines that offer cheap prices include Scandinavian Airlines from $294 and SWISS from $313 one-way.

  • 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.

  • What are the cheapest flights from State of Washington to Barcelona-El Prat Airport?

    The cheapest flight price from State of Washington to Barcelona-El Prat Airport is $598. On average you can expect to pay $800. The most popular route, (Seattle/Tacoma Intl - Barcelona-El Prat), can usually be booked for $384.

  • 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 $353). Flying from State of Washington to Barcelona-El Prat Airport in June is currently the most expensive (average of $861). 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
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$367Average$559FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$461Average$534FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$476Average$723FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$477Average$666FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$482Average$810FlexibilityNo cancel feeOn-time69%
DeltaCheapest$486Average$935FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$493Average$857FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$499Average$783FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$502Average$849FlexibilityNo cancel feeOn-time71%
IberiaCheapest$572Average$819FlexibilityNo cancel feeOn-time77%

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