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$258+ Cheap flights from Dulles Intl (IAD) to Barcelona

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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BCN
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Barcelona are usually found in February or January, booked 9 days in advance, depart on a Sunday or Monday and return on a Wednesday

Cheap flight deals from Dulles Intl to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Barcelona (S37). 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 January 14, 2026.

Round-trip from

$458
(oojo)

One-way from

$258
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$631
From Washington, D.C. Dulles Intl to Barcelona
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One-way flight from Washington, D.C. Dulles Intl to Barcelona
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Highest demand for flights based on searches. 19% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Dulles Intl to Barcelona

Cheapest flights from Dulles Intl to Barcelona
Explore the most affordable flight options available from Dulles Intl to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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.
Tue 1/205:30 pm
IAD
-
BCN
1 stop10h 35m
TAP AIR PORTUGAL
Tue 1/279:10 pm
BCN
-
IAD
1 stop29h 50m
TAP AIR PORTUGAL
Deal found 1/13$458
This Booking.com deal was found by Cheapflights users on 1/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:00 pm
IAD
-
BCN
1 stop17h 25m
Aer Lingus
Thu 3/511:30 am
BCN
-
IAD
1 stop14h 00m
Aer Lingus
Deal found 1/12$468
This FlightHub deal was found by Cheapflights users on 1/12. 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.
Fri 2/2710:30 pm
IAD
-
BCN
1 stop19h 15m
TAP AIR PORTUGAL
Fri 3/66:45 am
BCN
-
IAD
1 stop20h 15m
TAP AIR PORTUGAL
Deal found 1/12$469
This oojo deal was found by Cheapflights users on 1/13. 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 2/110:30 pm
IAD
-
BCN
1 stop19h 15m
TAP AIR PORTUGAL
Sat 2/76:45 am
BCN
-
IAD
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 1/13$470
This oojo deal was found by Cheapflights users on 1/11. 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.
Mon 1/195:30 pm
IAD
-
BCN
1 stop12h 15m
TAP AIR PORTUGAL
Mon 1/266:45 am
BCN
-
IAD
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 1/11$471
This oojo deal was found by Cheapflights users on 1/12. 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 4/228:20 pm
IAD
-
BCN
1 stop15h 50m
Scandinavian Airlines
Sun 5/37:00 pm
BCN
-
IAD
1 stop27h 50m
Scandinavian Airlines
Deal found 1/12$472
This oojo deal was found by Cheapflights users on 1/13. 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.
Fri 10/98:20 pm
IAD
-
BCN
1 stop15h 50m
Scandinavian Airlines
Mon 10/1910:35 am
BCN
-
IAD
1 stop12h 15m
Scandinavian Airlines
Deal found 1/13$475
This FlightHub deal was found by Cheapflights users on 1/12. 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.
Sat 4/48:20 pm
IAD
-
BCN
2 stops33h 10m
Scandinavian Airlines
Mon 4/1310:35 am
BCN
-
IAD
1 stop12h 15m
Scandinavian Airlines
Deal found 1/12$476
This Scandinavian Airlines deal was found by Cheapflights users on 1/12. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:20 pm
IAD
-
BCN
2 stops32h 15m
Scandinavian Airlines
Sat 4/2511:50 am
BCN
-
IAD
2 stops35h 00m
Scandinavian Airlines
Deal found 1/12$477
This oojo deal was found by Cheapflights users on 1/13. 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.
Sat 2/75:30 pm
IAD
-
BCN
1 stop24h 15m
TAP AIR PORTUGAL
Fri 2/1310:55 am
BCN
-
IAD
1 stop34h 20m
TAP AIR PORTUGAL
Deal found 1/13$478
This FlightHub deal was found by Cheapflights users on 1/13. 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.
Thu 4/168:20 pm
IAD
-
BCN
2 stops32h 40m
Scandinavian Airlines
Mon 4/2010:35 am
BCN
-
IAD
1 stop12h 15m
Scandinavian Airlines
Deal found 1/13$479
This oojo deal was found by Cheapflights users on 1/12. 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.
Tue 8/2510:35 pm
IAD
-
BCN
1 stop12h 20m
TAP AIR PORTUGAL
Tue 9/16:00 am
BCN
-
IAD
1 stop15h 05m
TAP AIR PORTUGAL
Deal found 1/12$480

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Barcelona 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 January 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Barcelona that are best for you.

Fly from

Dulles Intl

Fly to

Barcelona

Route

Depart

Return

Price

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 2/23

8:30 pm-6:20 pm

1 stop15h 50m

Barcelona-El Prat

Fri 2/27

7:10 pm-6:50 pm

1 stop29h 40m

$531

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Fri 4/3

8:20 pm-9:45 am

2 stops31h 25m

Barcelona-El Prat

Sun 4/12

12:20 pm-4:50 pm

2 stops34h 30m

$553

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 4/13

8:20 pm-6:10 pm

1 stop15h 50m

Barcelona-El Prat

Tue 5/12

6:45 pm-4:50 pm

2 stops28h 05m

$566

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 2/10

6:20 pm-2:45 pm

1 stop14h 25m

Barcelona-El Prat

Fri 2/20

6:40 am-3:35 pm

1 stop14h 55m

$582

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 3/24

1:19 pm-6:05 pm

2 stops23h 46m

Barcelona-El Prat

Sun 3/29

11:55 am-4:50 pm

2 stops34h 55m

$600

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 2/10

12:23 pm-6:05 pm

2 stops23h 42m

Barcelona-El Prat

Tue 2/17

7:10 pm-7:09 pm

2 stops29h 59m

$627

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 2/25

12:24 pm-6:20 pm

2 stops23h 56m

Barcelona-El Prat

Tue 3/3

7:10 pm-7:09 pm

2 stops29h 59m

$627

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 3/30

8:20 pm-6:10 pm

1 stop15h 50m

Barcelona-El Prat

Sun 4/12

12:20 pm-4:50 pm

2 stops34h 30m

$665

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 3/29

8:20 pm-6:10 pm

1 stop15h 50m

Barcelona-El Prat

Sun 4/12

12:20 pm-4:50 pm

2 stops34h 30m

$731

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 2/5

6:00 pm-4:20 pm

2 stops16h 20m

Barcelona-El Prat

Mon 2/9

10:00 pm-4:30 pm

2 stops24h 30m

$776

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 19 results
1
2

Best time to book a flight from Dulles Intl to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Barcelona. Price data was last updated on January 9, 2026.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 9 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?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona (average of $388). Flying from Washington, D.C. Dulles Intl Airport to Barcelona in June is currently the most expensive (average of $682). 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.

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

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated January 14, 2026.
Peruse reviews from past customers who have flown with United Airlines, TAP AIR PORTUGAL, and Iberia from Washington, D.C. Dulles Intl Airport to Barcelona to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,157 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
TAP AIR PORTUGAL
7.1
Good
2,119 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Iberia
7.0
Good
3,086 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,711 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,671 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Barcelona. 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?

    Airlines like Scandinavian Airlines and British Airways fly from Washington, D.C. Dulles Intl Airport to Barcelona in about 14h 25m. The time it takes to get you to your destination can typically vary by up to 1h 25m. Airlines will cover a distance of 4046 mi. This flight may include one or multiple stops.

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

    According to our current data, TAP AIR PORTUGAL ($375), Icelandair ($385), and Scandinavian Airlines ($398) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Barcelona. These flights start at 51% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $206. However, be on the lookout for offers from TAP AIR PORTUGAL and Turkish Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Barcelona for a low price.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Barcelona?

    When deciding which route to take from Washington, D.C. Dulles Intl Airport to Barcelona consider Washington, D.C. Dulles Intl - Barcelona-El Prat, Washington, D.C. Dulles Intl - Girona Costa Brava or Washington, D.C. Dulles Intl - Reus as they are the most popular.

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Barcelona are Air Canada (89%), United Airlines (89%) and Lufthansa (89%).

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Barcelona? While on average our users pay $2,591, our data indicates the cheapest price to be $532. The most popular route (Washington, D.C. Dulles Intl - Barcelona-El Prat), is priced around $364.

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

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

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

    Chiado, Praça do Marquês de Pombal, and Londres are the most popular attractions in Lisbon if you're in need of something to do during your layover. 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 if you are interested in checking them out. Travelers can rent a car at Lisbon Humberto Delgado for an average daily rate of $18 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 flights?

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

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

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

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

    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.

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Barcelona 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?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona (average of $388). Flying from Washington, D.C. Dulles Intl Airport to Barcelona in June is currently the most expensive (average of $682). 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

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Top 10 airlines flying from Dulles Intl to Barcelona

Discover the top 10 airlines that operate flights from Dulles Intl to Barcelona. 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$375Average$663FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$385Average$528FlexibilityNo cancel feeOn-time76%
DeltaCheapest$468Average$753FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$472Average$572FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$486Average$864FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$489Average$901FlexibilityNo cancel feeOn-time69%
KLMCheapest$489Average$696FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$498Average$680FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$499Average$1,125FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$511Average$765FlexibilityNo cancel feeOn-time71%

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