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Cheap flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport from £297

BCN — IAD
22 Oct — 29 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Barcelona-El Prat to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Barcelona-El Prat to Dulles Intl

Thu 22/1006:20 -
1 stop14h 10m
Sun 1/1116:30 -
1 stop17h 25m
Deal found 18/9£425
Sun 1/1106:20 -
1 stop14h 10m
Tue 24/1116:30 -
1 stop24h 45m
Deal found 18/9£427
Thu 24/1206:35 -
1 stop15h 05m
Tue 2/218:05 -
1 stop11h 25m
Deal found 19/9£433
Tue 13/1011:25 -
1 stop33h 45m
Sat 7/1117:25 -
1 stop20h 55m
Deal found 18/9£433
Mon 2/1107:55 -
2 stops16h 35m
Mon 9/1119:40 -
2 stops22h 25m
Deal found 18/9£439
Sun 27/1221:15 -
1 stop25h 05m
Sat 30/121:45 -
1 stop12h 15m
Deal found 19/9£442
Thu 19/1112:25 -
2 stops53h 27m
Sat 5/1220:30 -
1 stop15h 50m
Deal found 17/9£451
Tue 20/1007:40 -
1 stop18h 40m
Mon 26/1019:05 -
1 stop11h 20m
Deal found 18/9£452
Tue 20/1007:40 -
1 stop18h 40m
Wed 28/1022:55 -
1 stop18h 35m
Deal found 21/9£453
Sat 14/1109:45 -
1 stop12h 35m
Fri 20/1121:45 -
1 stop12h 50m
Deal found 17/9£454

Find flight deals from Barcelona-El Prat to Dulles Intl

Round-trip from

£419

One-way from

£297

Popular in

July

Cheapest in

February

Average price

£652
British Airways
  • British Airways
  • 14/1-18/1
  • 3 total stops
  • 29h 30m total
  • Barcelona to Washington, D.C.
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 2/12-31/12
  • 1 total stop
  • 24h 05m total
  • Barcelona to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Tue 1/12

18:05-20:30

1 stop32h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£303

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Thu 25/2

11:15-23:02

2 stops17h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£305

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Sun 8/11

18:05-15:15

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£324
Fastest return journey

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Sat 28/11

06:00-15:55

1 stop15h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Wed 11/11

06:00-17:28

2 stops17h 28m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£335

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Sun 15/11

06:00-17:28

2 stops17h 28m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£340

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Mon 28/12

21:10-15:40

1 stop24h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£342

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Tue 13/10

11:25-15:10

1 stop33h 45m

Washington, D.C. Dulles Intl

Sat 7/11

17:25-20:20

1 stop20h 55m

£434

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Tue 13/10

12:20-19:35

1 stop13h 15m

Washington, D.C. Dulles Intl

Sat 7/11

12:20-11:10

2 stops16h 50m

£478

BarcelonaWashington, D.C.

BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl

BCNIAD

Barcelona-El Prat

Thu 8/10

07:40-15:55

1 stop14h 15m

Washington, D.C. Dulles Intl

Wed 21/10

22:25-18:35

1 stop14h 10m

£480

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 22 resultsSorted by cheapest first
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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 return price

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?

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 17 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, February 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 £454). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £694). 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?

When flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport, 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 for a return flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flights typically cost between £500 and £710 in January.
The cheapest return price found within the last 5 days was £419 on British Airways (14 Jan–18 Jan).

Related info for your journey

  • How long is the flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

    Departing from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport will take you 13h 15m. Barcelona-El Prat Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 4046 mi. This flight may include one or multiple stops.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport on time: Air Canada (79%), United Airlines (79%), Lufthansa (79%).

  • 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 holiday 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, February 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 £454). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £694). 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

Travelling 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
Silver Spring
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield
Sterling

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Deals for Barcelona-El Prat to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Barcelona-El Prat to Dulles Intl?

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Can Cheapflights find flights from Barcelona-El Prat to Dulles Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Barcelona-El Prat to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

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Yes! Start tracking prices for Barcelona-El Prat to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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