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Barcelona-El Prat

$278+ Cheap flights from Dulles Intl (IAD) 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BCN
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Barcelona-El Prat are usually found in January or October, booked 58 days in advance, depart on a Sunday or Monday and return on a Wednesday

Cheap flight deals from Dulles Intl to Barcelona-El Prat

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

$471
(Air Canada)

One-way from

$278
(oojo)

Popular in

June

Cheapest in

January

Average price

$669

Good round-trip deal

$622 or less

Good one-way deal

$479 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Barcelona-El Prat flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Barcelona-El Prat flights.
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From Washington, D.C. Dulles Intl to Barcelona-El Prat
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One-way flight from Washington, D.C. Dulles Intl to Barcelona-El Prat
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Highest demand for flights based on searches. 18% potential increase in price ($177 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Barcelona-El Prat.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Barcelona-El Prat.
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Find flight deals from Dulles Intl to Barcelona-El Prat

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

This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:55 pmIAD - BCN
1 stop18h 10mMultiple Airlines
Mon 11/178:30 pmBCN - IAD
1 stop24h 10mMultiple Airlines
Deal found 10/16$472
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:45 amIAD - BCN
1 stop17h 50mMultiple Airlines
Wed 12/102:55 pmBCN - IAD
1 stop31h 45mMultiple Airlines
Deal found 10/15$473
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/48:30 amIAD - BCN
2 stops19h 05mUnited Airlines
Wed 11/121:35 pmBCN - IAD
1 stop27h 48mUnited Airlines
Deal found 10/14$474
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:55 pmIAD - BCN
1 stop12h 40mUnited Airlines
Thu 11/1310:30 amBCN - IAD
Nonstop9h 30mUnited Airlines
Deal found 10/15$475
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:20 pmIAD - BCN
1 stop15h 25mUnited Airlines
Thu 12/111:35 pmBCN - IAD
2 stops28h 09mUnited Airlines
Deal found 10/15$476
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:55 pmIAD - BCN
1 stop18h 10mLufthansa
Tue 11/115:50 amBCN - IAD
1 stop16h 00mLufthansa
Deal found 10/15$477
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:35 pmIAD - BCN
1 stop32h 35mUnited Airlines
Wed 11/1910:30 amBCN - IAD
Nonstop9h 30mUnited Airlines
Deal found 10/15$479
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:45 pmIAD - BCN
1 stop14h 30mUnited Airlines
Wed 12/36:50 amBCN - IAD
1 stop15h 00mUnited Airlines
Deal found 10/15$480
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:00 amIAD - BCN
2 stops18h 35mMultiple Airlines
Mon 12/157:50 pmBCN - IAD
1 stop26h 50mMultiple Airlines
Deal found 10/15$481
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2510:35 pmIAD - BCN
2 stops29h 00mUnited Airlines
Wed 12/31:50 pmBCN - IAD
2 stops31h 56mUnited Airlines
Deal found 10/16$482
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/198:28 amIAD - BCN
2 stops17h 22mAir Canada
Thu 11/61:35 pmBCN - IAD
2 stops37h 32mAir Canada
Deal found 10/15$483

Cheapflights Fare Finder

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

Fly from

Dulles Intl

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 11/25

5:40 pm-5:35 pm

1 stop17h 55m

Barcelona-El Prat

Thu 12/11

10:30 am-2:00 pm

Nonstop9h 30m

$475

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sat 11/15

10:35 pm-1:10 pm

1 stop32h 35m

Barcelona-El Prat

Thu 11/20

1:35 pm-4:21 pm

1 stop32h 46m

$482

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 11/16

9:45 am-9:35 am

1 stop17h 50m

Barcelona-El Prat

Wed 11/19

10:30 am-2:00 pm

Nonstop9h 30m

$489

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 3/8

7:30 pm-8:20 am

Nonstop7h 50m

Barcelona-El Prat

Thu 3/12

12:35 pm-8:59 pm

1 stop13h 24m

$492

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 1/6

12:40 pm-5:45 pm

2 stops23h 05m

Barcelona-El Prat

Fri 3/13

1:50 pm-3:54 pm

2 stops31h 04m

$503

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 11/6

9:45 am-9:35 am

1 stop17h 50m

Barcelona-El Prat

Tue 11/11

10:30 am-2:00 pm

Nonstop9h 30m

$519

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Fri 2/13

12:55 pm-9:35 am

2 stops14h 40m

Barcelona-El Prat

Tue 2/17

1:35 pm-8:59 pm

1 stop13h 24m

$524

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 11/17

6:05 pm-8:20 am

Nonstop8h 15m

Barcelona-El Prat

Wed 12/3

10:30 am-2:00 pm

Nonstop9h 30m

$524

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Fri 1/9

5:40 pm-11:05 am

1 stop11h 25m

Barcelona-El Prat

Thu 1/15

1:35 pm-8:59 pm

1 stop13h 24m

$527

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 4/5

6:25 pm-8:20 am

Nonstop7h 55m

Barcelona-El Prat

Fri 4/24

8:00 am-3:05 pm

1 stop13h 05m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 23 results
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Compare providers for flights from Dulles Intl to Barcelona-El Prat

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 Dulles Intl to Barcelona-El Prat in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
JetabroadPrice Accuracy3 starsTrust Score*1 star

*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 Washington, D.C. Dulles Intl Airport-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Barcelona-El Prat 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 Washington, D.C. Dulles Intl Airport-Barcelona-El Prat 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 Dulles Intl to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Dulles Intl 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, D.C. Dulles Intl Airport to Barcelona-El Prat Airport

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

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport may vary depending on when you book. For the best chance of a lower fare, look to book 58 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 Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport (average of $398). Flying from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport in June is currently the most expensive (average of $687). 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 IAD to BCN?

Find hourly flight availability from Dulles Intl 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 October 16, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport at noon. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Barcelona-El Prat. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. 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 Barcelona-El Prat. Reviews last updated October 16, 2025.
Read reviews from past customers who have flown United Airlines, Aer Lingus, and TAP AIR PORTUGAL from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat 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
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Aer Lingus
7.2
Good
1,341 reviews
United Airlines
7.4
Good
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
TAP AIR PORTUGAL
7.1
Good
2,016 reviews
United Airlines
7.4
Good
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Iberia
7.0
Good
2,994 reviews
United Airlines
7.4
Good
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,457 reviews
United Airlines
7.4
Good
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport can take about 17h 55m. United Airlines provides one of the quickest options available for as low as $475. The distance from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport is about 4046 mi.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport round-trip from $375. Other airlines that can offer you cheap pricing are Icelandair, from $389, and Scandinavian Airlines, from $409. You may be able to fly from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport for 52% less than the average price by searching for these airlines.

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport are Air Canada (72%), United Airlines (72%) and Lufthansa (72%).

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

    Looking at all options, your cheapest flight can be booked for $394. While the most popular route (Washington, D.C. Dulles Intl - Barcelona-El Prat) can be booked for $373 on average, our data indicates $2,349 when flying from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport?

    Flights departing from Washington, D.C. Dulles Intl Airport and landing in Barcelona-El Prat Airport layover in Lisbon most frequently.

  • What are some popular things to do or see while on a layover in Lisbon?

    Lisbon travelers tend to visit Chiado, Praça do Marquês de Pombal, and Londres more than anywhere else. Chiado, Praça do Marquês de Pombal, and Londres are located about 4.5 mi, 3.6 mi, and 2.3 mi, respectively from Lisbon Humberto Delgado. Travelers can rent a car at Lisbon Humberto Delgado for an average daily rate of $17 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flights?

    Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flights that have layovers will least frequently stop in Madrid.

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport (average of $398). Flying from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport in June is currently the most expensive (average of $687). 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

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Top 10 airlines flying from Dulles Intl to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Dulles Intl 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$375Average$736FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$389Average$604FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$409Average$579FlexibilityNo cancel feeOn-time77%
DeltaCheapest$468Average$881FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$498Average$928FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$498Average$732FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$500Average$876FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$522Average$1,219FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$524Average$796FlexibilityNo cancel feeOn-time71%
SWISSCheapest$528Average$798FlexibilityNo cancel feeOn-time79%

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