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Dulles Intl

$366+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — IAD
Apr 7 — Apr 141
Tue 4/7
Tue 4/14
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 October, booked 71 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap 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 March 8, 2026.

This deal was found by Cheapflights users on 3/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:20 am
BCN
-
IAD
1 stop14h 10m
ITA Airways
Tue 4/214:30 pm
IAD
-
BCN
1 stop12h 20m
ITA Airways
Deal found 3/3$448
This Mytrip deal was found by Cheapflights users on 3/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:45 pm
BCN
-
IAD
1 stop27h 25m
TAP AIR PORTUGAL
Thu 4/2310:35 pm
IAD
-
BCN
1 stop20h 55m
TAP AIR PORTUGAL
Deal found 3/3$458
This Trip.com deal was found by Cheapflights users on 3/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:45 pm
BCN
-
IAD
1 stop27h 25m
TAP AIR PORTUGAL
Mon 4/2010:35 pm
IAD
-
BCN
1 stop14h 45m
TAP AIR PORTUGAL
Deal found 3/3$468
This FlightHub deal was found by Cheapflights users on 3/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:45 pm
BCN
-
IAD
1 stop27h 25m
TAP AIR PORTUGAL
Thu 4/2310:35 pm
IAD
-
BCN
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 3/4$469
This Mytrip deal was found by Cheapflights users on 3/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:45 pm
BCN
-
IAD
1 stop27h 25m
TAP AIR PORTUGAL
Thu 4/3010:35 pm
IAD
-
BCN
1 stop12h 20m
TAP AIR PORTUGAL
Deal found 3/5$503
This Flightnetwork deal was found by Cheapflights users on 3/5. 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 4/138:20 pm
BCN
-
IAD
1 stop24h 50m
TAP AIR PORTUGAL
Sun 4/2610:35 pm
IAD
-
BCN
1 stop14h 45m
TAP AIR PORTUGAL
Deal found 3/5$504
This Rumbo deal was found by Cheapflights users on 3/5. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:50 pm
BCN
-
IAD
1 stop27h 40m
ITA Airways
Sun 4/264:30 pm
IAD
-
BCN
1 stop12h 20m
ITA Airways
Deal found 3/5$517
This Rumbo deal was found by Cheapflights users on 3/7. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:20 am
BCN
-
IAD
1 stop14h 10m
ITA Airways
Tue 4/284:30 pm
IAD
-
BCN
1 stop12h 20m
ITA Airways
Deal found 3/7$520
This Rumbo deal was found by Cheapflights users on 3/8. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:45 pm
BCN
-
IAD
1 stop11h 15m
Royal Air Maroc
Sun 10/119:00 pm
IAD
-
BCN
1 stop16h 10m
Royal Air Maroc
Deal found 3/8$521
This oojo deal was found by Cheapflights users on 3/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:50 pm
BCN
-
IAD
1 stop27h 50m
ITA Airways
Sun 3/225:45 pm
IAD
-
BCN
1 stop17h 10m
ITA Airways
Deal found 3/7$522

Find 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 March 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$448

One-way from

$366
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$709

Good round-trip deal

$763 or less

Good one-way deal

$699 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. 4% potential increase in price ($29 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 March 2026
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 March 8, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 4/27

9:20 am-6:08 pm

2 stops14h 48m

Washington, D.C. Dulles Intl

Sun 5/10

9:45 pm-3:35 pm

1 stop11h 50m

$578

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Tue 9/1

1:25 pm-12:10 am

2 stops16h 45m

Washington, D.C. Dulles Intl

Sun 9/20

9:45 pm-2:50 pm

1 stop11h 05m

$578

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 4/30

10:20 am-7:55 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 5/4

6:00 pm-8:20 am

Nonstop8h 20m

$602

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 4/13

8:00 am-4:05 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Sun 4/26

10:05 pm-3:35 pm

1 stop11h 30m

$607

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 3/26

6:00 am-5:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sat 4/11

10:20 pm-3:35 pm

1 stop11h 15m

$626

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Tue 9/1

6:40 am-1:35 pm

1 stop12h 55m

Washington, D.C. Dulles Intl

Sun 9/20

6:10 pm-8:20 am

Nonstop8h 10m

$637
Quickest round-trip

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Fri 4/3

11:15 am-2:05 pm

Nonstop8h 50m

Washington, D.C. Dulles Intl

Thu 4/16

6:00 pm-8:20 am

Nonstop8h 20m

$647
Cheapest one-way

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sun 8/2

9:20 pm-8:20 pm

1 stop29h 00m

$588

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 8/10

10:35 am-8:20 pm

1 stop15h 45m

$589

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sat 8/15

1:10 pm-8:20 pm

1 stop13h 10m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 18 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 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 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 March 6, 2026.

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 69 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, November 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 $421). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $604). 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 March 8, 2026.

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

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 March 8, 2026.
Read reviews from past customers who have flown United Airlines, TAP AIR PORTUGAL, and Lufthansa 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.
United Airlines
7.4
Good
9,406 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,406 reviews
United Airlines
7.4
Good
9,406 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
TAP AIR PORTUGAL
7.1
Good
2,163 reviews
United Airlines
7.4
Good
9,406 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Lufthansa
6.8
Okay
7,835 reviews
United Airlines
7.4
Good
9,406 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 14h 48m. Delta provides one of the quickest options available for as low as $578. The distance between Barcelona-El Prat Airport and Washington, D.C. Dulles Intl Airport is about 4046 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $485. Other airlines that can offer you cheap pricing are United Airlines, from $533, and Lufthansa, from $541. You may be able to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport for 29% less than the average price by searching for these airlines.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $275. Users have also found prices from $351 and $371 on British Airways and Iberia, respectively.

  • 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 (80%), United Airlines (80%) and Lufthansa (80%).

  • 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 $1,140, our data indicates the cheapest price to be $615. The most popular route (Barcelona-El Prat - Washington, D.C. Dulles Intl), is priced around $504.

  • 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, November 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 $421). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $604). 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
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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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

Top 3 airlines flying from Barcelona-El Prat to Dulles Intl

Discover the top 3 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 March 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$485Average$591FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$533Average$754FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$541Average$766FlexibilityNo cancel feeOn-time76%

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