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Cheap flights from Barcelona-El Prat Airport to Washington, D.C. from $480

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to Washington, D.C. departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Barcelona-El Prat Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:40 am - 7:31 pm
BCN
-
IAD
18h 51m
2 stops
British Airways Logo
6:20 pm - 11:20 am
IAD
-
BCN
11h 00m
1 stop
$658British Airways
Wed, Dec 2 - Tue, Dec 22
Multiple Airlines Logo
8:00 am - 10:15 pm
BCN
-
IAD
20h 15m
2 stops
Multiple Airlines Logo
8:30 pm - 12:10 am
IAD
-
BCN
21h 40m
2 stops
$661Multiple Airlines
Tue, Aug 25 - Sun, Aug 30
British Airways Logo
12:40 pm - 7:55 pm
BCN
-
IAD
13h 15m
1 stop
British Airways Logo
6:20 pm - 11:20 am
IAD
-
BCN
11h 00m
1 stop
$666British Airways
Fri, Dec 4 - Mon, Dec 21
Lufthansa Logo
6:40 am - 1:35 pm
BCN
-
IAD
12h 55m
1 stop
Lufthansa Logo
6:50 pm - 9:00 am
IAD
-
BCN
8h 10mnonstop
$667Lufthansa
Sun, Oct 18 - Sun, Nov 1
British Airways Logo
12:20 pm - 7:55 pm
BCN
-
IAD
13h 35m
1 stop
British Airways Logo
6:20 pm - 11:10 am
IAD
-
BCN
10h 50m
1 stop
$672British Airways
Wed, Dec 2 - Wed, Dec 23
Delta Logo
9:20 am - 3:35 pm
BCN
-
IAD
12h 15m
1 stop
Delta Logo
5:00 pm - 2:00 pm
IAD
-
BCN
15h 00m
2 stops
$673Delta
Sat, Oct 24 - Sun, Nov 1
TAP AIR PORTUGAL Logo
6:45 am - 3:15 pm
BCN
-
IAD
14h 30m
1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 11:45 pm
IAD
-
BCN
19h 15m
1 stop
$674TAP AIR PORTUGAL
Sat, Nov 14 - Fri, Nov 20
TAP AIR PORTUGAL Logo
6:45 am - 3:15 pm
BCN
-
IAD
14h 30m
1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 11:45 pm
IAD
-
BCN
19h 15m
1 stop
$676TAP AIR PORTUGAL
Sat, Nov 14 - Fri, Nov 20
Multiple Airlines Logo
11:10 pm - 9:24 pm
BCN
-
IAD
28h 14m
3 stops
Multiple Airlines Logo
8:30 pm - 1:15 am
IAD
-
BCN
22h 45m
2 stops
$677Multiple Airlines
Tue, Aug 25 - Sun, Aug 30
Lufthansa Logo
6:40 am - 1:35 pm
BCN
-
IAD
12h 55m
1 stop
Lufthansa Logo
6:50 pm - 9:00 am
IAD
-
BCN
8h 10mnonstop
$678Lufthansa
Sat, Oct 24 - Sun, Nov 1

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Delta flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Oct 24
BCN9:20 amBarcelona-El Prat
12h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Nov 1
IAD5:00 pmWashington, D.C. Dulles Intl
15h 00m
2 stops
BCN2:00 pmBarcelona-El Prat
$673
Delta
Oct 24
BCN9:20 amBarcelona-El Prat
12h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Nov 1
IAD5:00 pmWashington, D.C. Dulles Intl
15h 00m
2 stops
BCN2:00 pmBarcelona-El Prat
$691
Delta
Oct 24
BCN9:20 amBarcelona-El Prat
12h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Nov 1
IAD5:00 pmWashington, D.C. Dulles Intl
15h 00m
2 stops
BCN2:00 pmBarcelona-El Prat
$693

British Airways flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Our best British Airways deals on Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flight tickets
British Airways
Dec 2
BCN6:40 amBarcelona-El Prat
18h 51m
2 stops
IAD7:31 pmWashington, D.C. Dulles Intl
Dec 22
IAD6:20 pmWashington, D.C. Dulles Intl
11h 00m
1 stop
BCN11:20 amBarcelona-El Prat
$658
British Airways
Dec 4
BCN12:40 pmBarcelona-El Prat
13h 15m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
Dec 21
IAD6:20 pmWashington, D.C. Dulles Intl
11h 00m
1 stop
BCN11:20 amBarcelona-El Prat
$666
British Airways
Dec 2
BCN12:20 pmBarcelona-El Prat
13h 35m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
Dec 23
IAD6:20 pmWashington, D.C. Dulles Intl
10h 50m
1 stop
BCN11:10 amBarcelona-El Prat
$672

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated June 27, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 12/2

6:40 am-7:31 pm

2 stops18h 51m

Washington, D.C. Dulles Intl

Tue 12/22

6:20 pm-11:20 am

1 stop11h 00m

$658

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Tue 8/25

8:00 am-10:15 pm

2 stops20h 15m

Washington, D.C. Dulles Intl

Sun 8/30

8:30 pm-12:10 am

2 stops21h 40m

$661

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Fri 12/4

12:40 pm-7:55 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Mon 12/21

6:20 pm-11:20 am

1 stop11h 00m

$666
Quickest round-trip

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sun 10/18

6:40 am-1:35 pm

1 stop12h 55m

Washington, D.C. Dulles Intl

Sun 11/1

6:50 pm-9:00 am

Nonstop8h 10m

$667

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 12/2

12:20 pm-7:55 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Wed 12/23

6:20 pm-11:10 am

1 stop10h 50m

$672

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sat 10/24

9:20 am-3:35 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Sun 11/1

5:00 pm-2:00 pm

2 stops15h 00m

$673

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sat 11/14

6:45 am-3:15 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Fri 11/20

10:30 pm-11:45 pm

1 stop19h 15m

$674

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sat 11/14

6:45 am-3:15 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Fri 11/20

10:30 pm-11:45 pm

1 stop19h 15m

$676

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Tue 8/25

11:10 pm-9:24 pm

3 stops28h 14m

Washington, D.C. Dulles Intl

Sun 8/30

8:30 pm-1:15 am

2 stops22h 45m

$677

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sat 10/24

6:40 am-1:35 pm

1 stop12h 55m

Washington, D.C. Dulles Intl

Sun 11/1

6:50 pm-9:00 am

Nonstop8h 10m

$678

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Barcelona-El Prat Airport and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February is the cheapest month to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $608. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $647.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $773. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport for around $1,070.

What is the cheapest Barcelona-El Prat to Washington, D.C. Dulles Intl flight route?

Fly from Barcelona-El Prat to Washington, D.C. Dulles Intl for the best Barcelona-El Prat - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $744 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Barcelona-El Prat Airport for as low as $579 on momondo.

What cabin class options are available on Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flights?

There are 3 cabin classes available to choose from on Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of June 2026, prices for Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport (BCN to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Best Price Found

$783

Fastest flight time

8h 45m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Barcelona-El Prat Airport in the past 72 hours is $783. The best round-trip flight deal from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $717.
The fastest flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport takes 8h 45m
Direct flights go from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

  • How far is Barcelona-El Prat to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 4046.0 mi away from Barcelona-El Prat. In terms of flight time, this usually takes a little over 8h 45m.

  • When did momondo last update prices for flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $384Free CancellationRating
7.2
2,306 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $593Free CancellationRating
6.8
8,103 reviews
Search Lufthansa flights
United AirlinesPriceFrom $594Free CancellationRating
7.4
9,901 reviews
Search United Airlines flights

  • United Airlines Flights From Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

    Across 7 United Airlines flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport this week, the average price was $865, with the best United Airlines deals starting from $594 round-trip. 9,901 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • Lufthansa Flights From Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

    Lufthansa is also a popular choice for this route. Lufthansa flight deals for Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport start from as low as $593 round-trip, depending on your selected dates, with average Lufthansa deals seen on momondo around $890. Lufthansa operates 7 flights to Washington, D.C. Dulles Intl Airport from Barcelona-El Prat Airport in an average week. Users have rated it 6.8/10 across 8,103 reviews.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Winchester
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Colonial Beach
Linthicum Heights
Rockville
Silver Spring
Towson
Manassas
Sterling
Tysons
Springfield
Fairfax

Why use momondo?

Why should I use momondo to find a flight deal from Barcelona to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Barcelona to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Barcelona to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Barcelona which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Barcelona to Washington, D.C.?

momondo helps you find the best flight between Barcelona and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Barcelona to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Barcelona and alert you when they change.

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