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Dulles Intl

$389+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — IAD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 March, booked 73 days in advance, depart on a Wednesday or Saturday and return on a Monday

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 July 3, 2025.

Round-trip from

$550
(lol.travel)

One-way from

$389
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$746

Good round-trip deal

$600 or less

Good one-way deal

$723 or less
From Barcelona-El Prat to Washington, D.C. Dulles Intl
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One-way flight from Barcelona-El Prat to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 13% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Barcelona-El Prat to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Barcelona-El Prat to Washington, D.C. Dulles Intl.
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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 July 3, 2025.

This lol.travel deal was found by Cheapflights users on 7/2. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2410:40 pmBCN - IAD
1 stop22h 40mTAP AIR PORTUGAL
Sun 8/3110:20 pmIAD - BCN
1 stop15h 00mTAP AIR PORTUGAL
Deal found 7/2$550
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/279:25 amBCN - IAD
1 stop12h 10mDelta
Wed 9/1012:13 pmIAD - BCN
2 stops14h 47mDelta
Deal found 7/2$554
This Icelandair deal was found by Cheapflights users on 7/2. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:45 pmBCN - IAD
1 stop12h 25mIcelandair
Thu 9/48:30 pmIAD - BCN
1 stop12h 15mIcelandair
Deal found 7/2$557
This ITA Airways deal was found by Cheapflights users on 7/2. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:20 amBCN - IAD
1 stop14h 20mITA Airways
Sun 8/314:30 pmIAD - BCN
1 stop12h 20mITA Airways
Deal found 7/2$560
This Mytrip deal was found by Cheapflights users on 7/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2011:05 pmBCN - IAD
2 stops27h 45mMultiple Airlines
Mon 8/255:45 pmIAD - BCN
2 stops25h 30mMultiple Airlines
Deal found 7/2$561
This Virgin Atlantic deal was found by Cheapflights users on 7/3. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/289:30 amBCN - IAD
2 stops19h 56mVirgin Atlantic
Thu 9/116:00 amIAD - BCN
2 stops18h 00mVirgin Atlantic
Deal found 7/3$564
This Iberia deal was found by Cheapflights users on 7/2. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:15 pmBCN - IAD
2 stops24h 20mIberia
Fri 12/56:15 pmIAD - BCN
2 stops16h 55mIberia
Deal found 7/2$573
This Flighttix deal was found by Cheapflights users on 7/3. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:50 amBCN - IAD
1 stop15h 00mLufthansa
Thu 9/116:35 pmIAD - BCN
Nonstop7h 45mLufthansa
Deal found 7/3$595
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:10 pmBCN - IAD
1 stop14h 55mUnited Airlines
Sun 9/146:35 pmIAD - BCN
Nonstop7h 45mUnited Airlines
Deal found 7/2$604
This Air Canada deal was found by Cheapflights users on 7/1. 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.
Thu 9/1112:10 pmBCN - IAD
1 stop14h 55mAir Canada
Sun 9/1410:20 amIAD - BCN
2 stops15h 30mAir Canada
Deal found 7/1$621
This deal was found by Cheapflights users on 7/1. 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.
Sat 11/296:45 amBCN - IAD
1 stop15h 45mSWISS
Sat 12/68:45 pmIAD - BCN
1 stop11h 20mSWISS
Deal found 7/1$632

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 July 3, 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

Sun 8/24

10:40 pm-3:20 pm

1 stop22h 40m

Washington, D.C. Dulles Intl

Sun 8/31

10:20 pm-7:20 pm

1 stop15h 00m

$550

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 8/27

9:25 am-3:35 pm

1 stop12h 10m

Washington, D.C. Dulles Intl

Wed 9/10

12:13 pm-9:00 am

2 stops14h 47m

$554

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 8/25

3:45 pm-10:10 pm

1 stop12h 25m

Washington, D.C. Dulles Intl

Thu 9/4

8:30 pm-2:45 pm

1 stop12h 15m

$557

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 8/25

6:20 am-2:40 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Sun 8/31

4:30 pm-10:50 am

1 stop12h 20m

$560

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 8/20

11:05 pm-8:50 pm

2 stops27h 45m

Washington, D.C. Dulles Intl

Mon 8/25

5:45 pm-1:15 am

2 stops25h 30m

$561

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 8/28

9:30 am-11:26 pm

2 stops19h 56m

Washington, D.C. Dulles Intl

Thu 9/11

6:00 am-6:00 am

2 stops18h 00m

$564

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 11/26

9:15 pm-3:35 pm

2 stops24h 20m

Washington, D.C. Dulles Intl

Fri 12/5

6:15 pm-5:10 pm

2 stops16h 55m

$573

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 8/28

6:50 am-3:50 pm

1 stop15h 00m

Washington, D.C. Dulles Intl

Thu 9/11

6:35 pm-8:20 am

Nonstop7h 45m

$595

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 9/11

12:10 pm-9:05 pm

1 stop14h 55m

Washington, D.C. Dulles Intl

Sun 9/14

6:35 pm-8:20 am

Nonstop7h 45m

$604

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Thu 9/11

12:10 pm-9:05 pm

1 stop14h 55m

Washington, D.C. Dulles Intl

Sun 9/14

10:20 am-7:50 am

2 stops15h 30m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 14 results
1
2

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 June 27, 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 73 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, August 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 $309). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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 July 3, 2025.

It’s optimal to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Barcelona-El Prat to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from BCN to IAD are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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 July 3, 2025.
Read reviews from past customers who have flown Delta, SWISS, and United Airlines 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
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 $550. Other airlines that can offer you cheap pricing are Delta, from $554, and Icelandair, from $557. You may be able to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport for 8% 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 (82%), United Airlines (82%) and Lufthansa (82%).

  • 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 $1,711, our data indicates the cheapest price to be $516. 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, August 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 $309). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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
Arlington
Woodbridge
Alexandria
Tysons
Silver Spring
Fredericksburg
Linthicum Heights
Gaithersburg
Fairfax
Easton
Towson
Waldorf
Laurel
Falls Church
Rockville
Springfield
National Harbor
Manassas
Dundalk
Bowie

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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 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$396Average$603FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$398Average$593FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$432Average$753FlexibilityNo cancel feeOn-time69%

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