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$415+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BCN
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
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 16 days in advance, depart on a Monday or Sunday and return on a Saturday

Cheap 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 May 20, 2026.

This oojo deal was found by Cheapflights users on 5/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:35 pm
IAD
-
BCN
1 stop17h 15m
TAP AIR PORTUGAL
Sat 9/56:00 am
BCN
-
IAD
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 5/16$785
This Mytrip deal was found by Cheapflights users on 5/19. 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.
Fri 10/238:30 pm
IAD
-
BCN
2 stops20h 25m
Multiple Airlines
Sat 10/3112:45 pm
BCN
-
IAD
2 stops36h 00m
Multiple Airlines
Deal found 5/19$788
This Mytrip deal was found by Cheapflights users on 5/15. 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.
Sat 9/58:30 pm
IAD
-
BCN
2 stops18h 50m
Multiple Airlines
Sun 9/133:00 pm
BCN
-
IAD
1 stop30h 10m
Multiple Airlines
Deal found 5/15$789
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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.
Tue 9/2910:35 pm
IAD
-
BCN
1 stop20h 55m
TAP AIR PORTUGAL
Sun 10/116:00 am
BCN
-
IAD
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 5/18$791
This FlightHub deal was found by Cheapflights users on 5/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:35 pm
IAD
-
BCN
1 stop30h 00m
TAP AIR PORTUGAL
Sat 9/56:00 am
BCN
-
IAD
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 5/16$792
This FlightHub deal was found by Cheapflights users on 5/18. 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 9/108:20 pm
IAD
-
BCN
2 stops55h 25m
Scandinavian Airlines
Tue 9/157:00 pm
BCN
-
IAD
1 stop28h 00m
Scandinavian Airlines
Deal found 5/18$793
This Mytrip deal was found by Cheapflights users on 5/19. 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.
Sat 8/811:20 pm
IAD
-
BCN
2 stops20h 30m
Multiple Airlines
Mon 9/288:20 pm
BCN
-
IAD
1 stop24h 50m
Multiple Airlines
Deal found 5/19$796
This Mytrip deal was found by Cheapflights users on 5/19. 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 9/210:20 pm
IAD
-
BCN
2 stops20h 10m
Multiple Airlines
Wed 9/910:40 pm
BCN
-
IAD
1 stop22h 30m
Multiple Airlines
Deal found 5/19$798
This FlightHub deal was found by Cheapflights users on 5/19. 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 8/2012:29 pm
IAD
-
BCN
2 stops23h 41m
Scandinavian Airlines
Thu 9/37:00 pm
BCN
-
IAD
1 stop28h 00m
Scandinavian Airlines
Deal found 5/19$799
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Sun 9/208:30 pm
IAD
-
BCN
2 stops13h 45m
Multiple Airlines
Wed 9/2311:00 am
BCN
-
IAD
1 stop14h 25m
Multiple Airlines
Deal found 5/19$800
This Mytrip deal was found by Cheapflights users on 5/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:30 pm
IAD
-
GRO
2 stops19h 10m
Multiple Airlines
Mon 10/510:55 pm
GRO
-
IAD
3 stops46h 15m
Multiple Airlines
Deal found 5/16$1,043
This Mytrip deal was found by Cheapflights users on 5/19. 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 8/179:45 am
IAD
-
GRO
3 stops30h 55m
Multiple Airlines
Thu 8/206:05 am
GRO
-
IAD
3 stops43h 15m
Multiple Airlines
Deal found 5/19$1,108

Find 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 May 20, 2026.

Round-trip from

$785
(oojo)

One-way from

$415
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$966
From Washington, D.C. Dulles Intl to Barcelona
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Barcelona
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($268 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in May 2026
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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 May 20, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Girona

IAD - GRO

IADGRO

Washington, D.C. Dulles Intl

Thu 10/1

8:30 pm-9:40 pm

3 stops19h 10m

Girona Costa Brava

Mon 10/5

10:55 pm-3:10 pm

3 stops46h 15m

$1,053

Washington, D.C.Girona

IAD - GRO

IADGRO

Washington, D.C. Dulles Intl

Mon 8/17

9:45 am-10:40 pm

3 stops30h 55m

Girona Costa Brava

Thu 8/20

6:05 am-7:20 pm

3 stops43h 15m

$1,108

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 7/28

6:05 pm-8:20 am

Nonstop8h 15m

Barcelona-El Prat

Sun 8/9

12:15 pm-7:01 pm

1 stop12h 46m

$1,124

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sat 8/1

10:05 pm-8:00 am

2 stops27h 55m

Barcelona-El Prat

Sat 8/8

1:50 pm-4:05 pm

1 stop32h 15m

$1,156
Quickest round-trip

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 8/13

6:30 pm-8:20 am

Nonstop7h 50m

Barcelona-El Prat

Thu 8/20

11:15 am-2:00 pm

Nonstop8h 45m

$1,186

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 7/21

6:05 pm-8:20 am

Nonstop8h 15m

Barcelona-El Prat

Mon 8/3

1:50 pm-4:05 pm

1 stop32h 15m

$1,223

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Fri 7/31

12:37 pm-10:15 am

2 stops15h 38m

Barcelona-El Prat

Thu 8/13

9:20 am-8:53 pm

2 stops17h 33m

$1,230

Washington, D.C.Girona

IAD - GRO

IADGRO

Washington, D.C. Dulles Intl

Sat 7/4

5:15 pm-1:50 pm

1 stop14h 35m

Girona Costa Brava

Sat 7/11

5:40 pm-11:35 am

2 stops47h 55m

$1,286

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 7/2

5:40 pm-11:35 am

1 stop11h 55m

Barcelona-El Prat

Sat 10/31

10:30 am-3:00 pm

Nonstop9h 30m

$1,304

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 7/23

6:05 pm-8:20 am

Nonstop8h 15m

Barcelona-El Prat

Mon 8/3

6:40 am-1:35 pm

1 stop12h 55m

$1,332

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 26 resultsSorted by cheapest first
1
2
3

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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Barcelona?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona (average of $235). Flying from Washington, D.C. Dulles Intl Airport to Barcelona in June is currently the most expensive (average of $678). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 20, 2026.

When flying from Washington, D.C. Dulles Intl Airport to Barcelona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip 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?

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 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 May 20, 2026.
Peruse reviews from past customers who have flown with Turkish Airlines,United Airlines, andTAP AIR PORTUGAL 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.
Turkish Airlines
7.4
Good
4,382 reviews

Crew

7.8

Food

7.5

Comfort

7.3

Overall

7.4

Boarding

7.3

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
Turkish Airlines
7.4
Good
4,382 reviews
Turkish Airlines
7.4
Good
4,382 reviews

Crew

7.8

Food

7.5

Comfort

7.3

Overall

7.4

Boarding

7.3

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
United Airlines
7.4
Good
9,738 reviews
Turkish Airlines
7.4
Good
4,382 reviews

Crew

7.8

Food

7.5

Comfort

7.3

Overall

7.4

Boarding

7.3

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
TAP AIR PORTUGAL
7.2
Good
2,257 reviews
Turkish Airlines
7.4
Good
4,382 reviews

Crew

7.8

Food

7.5

Comfort

7.3

Overall

7.4

Boarding

7.3

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
Lufthansa
6.8
Okay
8,015 reviews
Turkish Airlines
7.4
Good
4,382 reviews

Crew

7.8

Food

7.5

Comfort

7.3

Overall

7.4

Boarding

7.3

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
British Airways
6.7
Okay
7,988 reviews
Turkish Airlines
7.4
Good
4,382 reviews

Crew

7.8

Food

7.5

Comfort

7.3

Overall

7.4

Boarding

7.3

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.

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 United Airlines and Iberia fly from Washington, D.C. Dulles Intl Airport to Barcelona in about 8h 15m. The time it takes to get you to your destination can typically vary by up to 25h 30m. 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 ($388), Icelandair ($389), and Air France ($461) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Barcelona. These flights start at 50% 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 $229. However, be on the lookout for offers from Turkish Airlines and TAP AIR PORTUGAL, 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 - Reus or Washington, D.C. Dulles Intl - Girona Costa Brava 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 (82%), United Airlines (82%) and Lufthansa (82%).

  • 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 $2,853, our data indicates the cheapest price to be $804. The most popular route (Washington, D.C. Dulles Intl - Barcelona-El Prat), is priced around $662.

  • 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 $19 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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona (average of $235). Flying from Washington, D.C. Dulles Intl Airport to Barcelona in June is currently the most expensive (average of $678). 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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$388Average$742FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$389Average$462FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$461Average$693FlexibilityNo cancel feeOn-time77%
DeltaCheapest$468Average$661FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$479Average$691FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$488Average$869FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$488Average$634FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$490Average$683FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$498Average$620FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$499Average$1,081FlexibilityNo cancel feeOn-time76%

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