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Dulles Intl

$297+ Cheap flights from Barcelona-El Prat (BCN) to Dulles Intl (IAD)

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — IAD
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Barcelona-El Prat to Washington, D.C. Dulles Intl are usually found in February or January, booked 57 days in advance, depart on a Wednesday or Saturday and return on a Sunday

Find flight deals from Barcelona-El Prat to Dulles Intl

Cheapest flights from Barcelona-El Prat to Dulles Intl
Explore the most affordable flight options available from Barcelona-El Prat to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Delta deal was found by Cheapflights users on 10/16. 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.
Sat 11/86:00 amBCN - IAD
1 stop16h 05mDelta
Thu 11/137:49 pmIAD - BCN
2 stops15h 16mDelta
Deal found 10/16$469
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/196:45 amBCN - IAD
1 stop20h 15mTAP AIR PORTUGAL
Mon 12/15:30 pmIAD - BCN
1 stop10h 35mTAP AIR PORTUGAL
Deal found 10/16$470
This Delta deal was found by Cheapflights users on 10/16. 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 11/206:00 amBCN - IAD
1 stop16h 05mDelta
Thu 12/412:19 pmIAD - BCN
1 stop13h 41mDelta
Deal found 10/16$473
This Delta deal was found by Cheapflights users on 10/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:55 amBCN - IAD
1 stop19h 18mDelta
Wed 1/76:50 pmIAD - BCN
1 stop10h 20mDelta
Deal found 10/15$474
This Delta deal was found by Cheapflights users on 10/16. 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 11/206:00 amBCN - IAD
1 stop16h 05mDelta
Mon 12/16:05 pmIAD - BCN
1 stop12h 10mDelta
Deal found 10/16$475
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2211:10 amBCN - IAD
2 stops17h 53mDelta
Sat 11/2912:11 pmIAD - BCN
1 stop13h 49mDelta
Deal found 10/14$477
This Virgin Atlantic deal was found by Cheapflights users on 10/15. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:15 amBCN - IAD
1 stop14h 53mVirgin Atlantic
Thu 11/276:00 amIAD - BCN
2 stops20h 00mVirgin Atlantic
Deal found 10/15$478
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:15 pmBCN - IAD
2 stops18h 01mDelta
Thu 11/277:49 pmIAD - BCN
2 stops15h 16mDelta
Deal found 10/14$479
This Delta deal was found by Cheapflights users on 10/16. 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.
Sat 11/2211:10 amBCN - IAD
2 stops17h 53mDelta
Wed 12/36:05 pmIAD - BCN
1 stop16h 25mDelta
Deal found 10/16$481
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/192:35 pmBCN - IAD
1 stop12h 25mTAP AIR PORTUGAL
Thu 12/45:30 pmIAD - BCN
1 stop10h 35mTAP AIR PORTUGAL
Deal found 10/16$482
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:35 pmBCN - IAD
1 stop12h 25mTAP AIR PORTUGAL
Sun 11/3010:30 pmIAD - BCN
1 stop15h 50mTAP AIR PORTUGAL
Deal found 10/15$483

Cheap flight deals from Barcelona-El Prat to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to Dulles Intl (IAD). 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$469
(Delta)

One-way from

$297
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$603

Good round-trip deal

$722 or less

Good one-way deal

$647 or less
Provider with most accurate pricing for Barcelona-El Prat-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Barcelona-El Prat-Washington, D.C. Dulles Intl flights.
Search Deals
From Barcelona-El Prat to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Barcelona-El Prat to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($75 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 October 2025
Search Deals
Price to beat on a round-trip flight from Barcelona-El Prat to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Barcelona-El Prat to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat to Dulles Intl 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 October 16, 2025.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Barcelona-El Prat

Fly to

Dulles Intl

Route

Depart

Return

Price

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 11/20

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Thu 12/4

12:19 pm-8:50 am

2 stops14h 31m

$469

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 11/20

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Thu 12/4

12:19 pm-8:50 am

2 stops14h 31m

$469

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sat 11/22

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sat 11/29

12:11 pm-8:00 am

1 stop13h 49m

$471

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sun 11/16

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 11/25

6:00 am-8:40 am

1 stop20h 40m

$471

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 11/20

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Thu 12/4

12:30 pm-8:40 am

1 stop14h 10m

$473

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 12/3

1:00 pm-12:13 am

2 stops17h 13m

Washington, D.C. Dulles Intl

Wed 12/10

6:50 pm-5:05 pm

1 stop16h 15m

$473

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 1/26

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Mon 2/16

12:30 pm-10:25 am

2 stops15h 55m

$473

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 12/3

1:00 pm-12:13 am

2 stops17h 13m

Washington, D.C. Dulles Intl

Sun 12/7

12:30 pm-8:40 am

1 stop14h 10m

$477

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 11/13

10:15 am-7:08 pm

1 stop14h 53m

Washington, D.C. Dulles Intl

Thu 11/27

6:00 am-8:00 am

2 stops20h 00m

$478

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Fri 11/14

12:15 pm-11:03 pm

2 stops16h 48m

Washington, D.C. Dulles Intl

Thu 11/27

6:50 pm-2:00 pm

1 stop13h 10m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 19 results
1
2

Compare providers for flights from Barcelona-El Prat to Dulles Intl

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 Dulles Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust 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-Washington, D.C. Dulles Intl Airport 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-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Barcelona-El Prat Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Barcelona-El Prat Airport-Washington, D.C. Dulles Intl 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 Barcelona-El Prat Airport-Washington, D.C. Dulles Intl 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 Barcelona-El Prat to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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 Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to Dulles Intl. Price data was last updated on October 10, 2025.

The price you pay for your flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 57 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 Washington, D.C. Dulles Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport (average of $276). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $600). 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 IAD?

Find hourly flight availability from Barcelona-El Prat to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

It’s optimal to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated October 16, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and TAP AIR PORTUGAL from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
United Airlines
7.4
Good
8,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
TAP AIR PORTUGAL
7.1
Good
2,015 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Lufthansa
6.8
Okay
7,494 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat to Dulles Intl. 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 Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

    A quick flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport can take about 16h 05m. Delta provides one of the quickest options available for as low as $469. The distance between Barcelona-El Prat Airport and Washington, D.C. Dulles Intl Airport is about 4046 mi.

  • What are the cheapest airlines flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport round-trip from $298. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $406, and United Airlines, from $432. You may be able to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport for 52% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport are Air Canada (77%), United Airlines (77%) and Lufthansa (77%).

  • What are the cheapest flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

    Looking for the cheapest flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport? While on average our users pay $802, our data indicates the cheapest price to be $503. The most popular route (Barcelona-El Prat - Washington, D.C. Dulles Intl), is priced around $430.

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

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

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

    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 Dulles Intl.

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

    Yes. Cheapflights offers flight deals from Barcelona-El Prat to Dulles Intl 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 Washington, D.C. Dulles Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport (average of $276). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $600). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Tysons
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

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Alternative routes for Barcelona-El Prat to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Barcelona-El Prat to Baltimore flights
Barcelona-El Prat to Reagan-National flights
Costa Brava to Dulles Intl flights

Top 4 airlines flying from Barcelona-El Prat to Dulles Intl

Discover the top 4 airlines that operate flights from Barcelona-El Prat to Dulles Intl. 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$298Average$438FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$406Average$595FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$432Average$752FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$525Average$709FlexibilityNo cancel feeOn-time76%

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