Cheap flights from Barcelona-El Prat Airport to Washington, D.C. from $377

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 9/15. 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.
Icelandair Logo
3:45 pm - 10:15 pm
BCN
-
BWI
12h 30m
1 stop
Icelandair Logo
8:30 pm - 2:45 pm
BWI
-
BCN
12h 15m
1 stop
$602Icelandair
Tue, Sep 29 - Mon, Oct 5
Icelandair Logo
3:45 pm - 10:15 pm
BCN
-
BWI
12h 30m
1 stop
Icelandair Logo
8:30 pm - 2:45 pm
BWI
-
BCN
12h 15m
1 stop
$603Icelandair
Thu, Sep 10 - Thu, Sep 17
Icelandair Logo
3:45 pm - 7:25 pm
BCN
-
BWI
33h 40m
1 stop
Icelandair Logo
8:30 pm - 2:45 pm
BWI
-
BCN
12h 15m
1 stop
$616Icelandair
Fri, Oct 9 - Mon, Oct 12
Icelandair Logo
3:45 pm - 7:25 pm
BCN
-
BWI
33h 40m
1 stop
Icelandair Logo
8:30 pm - 2:45 pm
BWI
-
BCN
12h 15m
1 stop
$619Icelandair
Fri, Oct 9 - Tue, Oct 13
Delta Logo
11:10 am - 11:02 pm
BCN
-
IAD
17h 52m
2 stops
Delta Logo
4:00 pm - 2:00 pm
IAD
-
BCN
17h 00m
2 stops
$653Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
11:10 am - 9:55 pm
BCN
-
DCA
16h 45m
2 stops
Delta Logo
12:00 pm - 9:00 am
DCA
-
BCN
15h 00m
2 stops
$653Delta
Thu, Oct 8 - Mon, Oct 12
British Airways Logo
7:40 am - 3:55 pm
BCN
-
IAD
14h 15m
1 stop
British Airways Logo
7:15 pm - 1:15 pm
IAD
-
BCN
12h 00m
1 stop
$656British Airways
Mon, Sep 14 - Tue, Oct 6
Air France Logo
12:20 pm - 7:35 pm
BCN
-
IAD
13h 15m
1 stop
Air France Logo
7:40 pm - 11:10 am
IAD
-
BCN
10h 30m
1 stop
$658Air France
Sun, Oct 4 - Sun, Oct 25
TAP AIR PORTUGAL Logo
5:45 pm - 3:10 pm
BCN
-
IAD
27h 25m
1 stop
TAP AIR PORTUGAL Logo
5:05 pm - 7:20 pm
IAD
-
BCN
20h 15m
1 stop
$661TAP AIR PORTUGAL
Wed, Jul 15 - Tue, Oct 13
British Airways Logo
1:30 pm - 11:10 pm
BCN
-
DCA
15h 40m
1 stop
British Airways Logo
2:55 pm - 6:45 am
DCA
-
BCN
9h 50m
1 stop
$661British Airways
Wed, Sep 16 - Mon, Oct 5

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TAP AIR PORTUGAL flights from Barcelona-El Prat Airport to Washington, D.C.

Our best TAP AIR PORTUGAL deals on Barcelona-El Prat Airport to Washington, D.C. flight tickets
TAP AIR PORTUGAL
Jul 16
BCN5:45 pmBarcelona-El Prat
27h 25m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
Oct 13
IAD10:35 pmWashington, D.C. Dulles Intl
14h 45m
1 stop
BCN7:20 pmBarcelona-El Prat
$684
TAP AIR PORTUGAL
Nov 14
BCN6:45 amBarcelona-El Prat
14h 30m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
Nov 20
IAD10:30 pmWashington, D.C. Dulles Intl
15h 50m
1 stop
BCN8:20 pmBarcelona-El Prat
$685
TAP AIR PORTUGAL
Nov 14
BCN6:45 amBarcelona-El Prat
14h 30m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
Nov 20
IAD10:30 pmWashington, D.C. Dulles Intl
19h 15m
1 stop
BCN11:45 pmBarcelona-El Prat
$687

United Airlines flights from Barcelona-El Prat Airport to Washington, D.C.

Our best United Airlines deals on Barcelona-El Prat Airport to Washington, D.C. flight tickets
United Airlines
Oct 9
BCN6:40 amBarcelona-El Prat
12h 55m
1 stop
IAD1:35 pmWashington, D.C. Dulles Intl
Oct 12
IAD6:35 pmWashington, D.C. Dulles Intl
7h 45m
BCN8:20 amBarcelona-El Prat
$703
United Airlines
Sep 1
BCN8:00 amBarcelona-El Prat
18h 00m
1 stop
IAD8:00 pmWashington, D.C. Dulles Intl
Sep 20
IAD6:10 pmWashington, D.C. Dulles Intl
8h 10m
BCN8:20 amBarcelona-El Prat
$704
United Airlines
Sep 1
BCN6:40 amBarcelona-El Prat
12h 55m
1 stop
IAD1:35 pmWashington, D.C. Dulles Intl
Sep 20
IAD6:10 pmWashington, D.C. Dulles Intl
8h 10m
BCN8:20 amBarcelona-El Prat
$705

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport to Washington, D.C. 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 17, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaBaltimore

BCN - BWI

BCNBWI

Barcelona-El Prat

Tue 9/29

3:45 pm-10:15 pm

1 stop12h 30m

Baltimore/Washington

Mon 10/5

8:30 pm-2:45 pm

1 stop12h 15m

$602

BarcelonaBaltimore

BCN - BWI

BCNBWI

Barcelona-El Prat

Thu 9/10

3:45 pm-10:15 pm

1 stop12h 30m

Baltimore/Washington

Thu 9/17

8:30 pm-2:45 pm

1 stop12h 15m

$603

BarcelonaBaltimore

BCN - BWI

BCNBWI

Barcelona-El Prat

Fri 10/9

3:45 pm-7:25 pm

1 stop33h 40m

Baltimore/Washington

Mon 10/12

8:30 pm-2:45 pm

1 stop12h 15m

$616

BarcelonaBaltimore

BCN - BWI

BCNBWI

Barcelona-El Prat

Fri 10/9

3:45 pm-7:25 pm

1 stop33h 40m

Baltimore/Washington

Tue 10/13

8:30 pm-2:45 pm

1 stop12h 15m

$619

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Tue 10/20

11:10 am-11:02 pm

2 stops17h 52m

Washington, D.C. Dulles Intl

Wed 10/28

4:00 pm-2:00 pm

2 stops17h 00m

$653

BarcelonaWashington, D.C.

BCN - DCA

BCNDCA

Barcelona-El Prat

Thu 10/8

11:10 am-9:55 pm

2 stops16h 45m

Washington, D.C. Reagan-National

Mon 10/12

12:00 pm-9:00 am

2 stops15h 00m

$653

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Mon 9/14

7:40 am-3:55 pm

1 stop14h 15m

Washington, D.C. Dulles Intl

Tue 10/6

7:15 pm-1:15 pm

1 stop12h 00m

$656
Quickest round-trip

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Sun 10/4

12:20 pm-7:35 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Sun 10/25

7:40 pm-11:10 am

1 stop10h 30m

$658

BarcelonaWashington, D.C.

BCN - IAD

BCNIAD

Barcelona-El Prat

Wed 7/15

5:45 pm-3:10 pm

1 stop27h 25m

Washington, D.C. Dulles Intl

Tue 10/13

5:05 pm-7:20 pm

1 stop20h 15m

$661

BarcelonaWashington, D.C.

BCN - DCA

BCNDCA

Barcelona-El Prat

Wed 9/16

1:30 pm-11:10 pm

1 stop15h 40m

Washington, D.C. Reagan-National

Mon 10/5

2:55 pm-6:45 am

1 stop9h 50m

$661

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.

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.?

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

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Barcelona-El Prat Airport, with most prices found around $337. If you’re not able to fly to Washington, D.C. in January, then September is your next best option. Flight prices from Barcelona-El Prat Airport to Washington, D.C. during September average around $368.

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

On average, the least expensive day to fly to Washington, D.C. from Barcelona-El Prat Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $773. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $1,070.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. 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. for around $745 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. 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. flights?

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

Can stopping save me money on Barcelona-El Prat Airport to Washington, D.C. flights?

You could potentially save up to 32% on your flight if you consider stops on a Barcelona-El Prat Airport to Washington, D.C. flight.

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

As of June 2026, prices for Barcelona-El Prat Airport to Washington, D.C. flights are approximately 19% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Barcelona-El Prat Airport to Washington, D.C. 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. (BCN to WAS) 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.

Best Price Found

$783

Fastest flight time

8h 45m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. 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. found on momondo in the last 72 hours is $718.
The fastest flight from Barcelona-El Prat Airport to Washington, D.C. takes 8h 45m
Direct flights go from Barcelona-El Prat Airport to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Barcelona-El Prat Airport there are direct flights to Washington, D.C. Dulles Intl (IAD).

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

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

    The distance between Barcelona-El Prat and Washington, D.C. is about 4028.2 mi. 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.?

    Prices for flights from Barcelona-El Prat Airport to Washington, D.C. are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Barcelona-El Prat Airport to Washington, D.C..

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

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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.?

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

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

Compare and see reviews for airlines that fly from Barcelona-El Prat Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $593Free CancellationRating
6.8
8,066 reviews
Search Lufthansa flights
United AirlinesPriceFrom $594Free CancellationRating
7.4
9,848 reviews
Search United Airlines flights
  • United Airlines Flights From Barcelona-El Prat Airport to Washington, D.C.

    United Airlines flies from Barcelona-El Prat Airport to Washington, D.C. around 7 times per week, with 9,848 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Barcelona-El Prat Airport to Washington, D.C. in the last 72 hours was $594 (round-trip), much lower than the average airfare cost of $865 for United Airlines flights on this route.

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

    The best Lufthansa deal for Barcelona-El Prat Airport to Washington, D.C. flight tickets found on momondo in the last 72 hours was $593, round-trip. It should be noted that an average Lufthansa flight deal for this route in this time was higher, at $852 round-trip. Lufthansa operates 7 flights out of Barcelona-El Prat Airport into Washington, D.C. in an average week, so prices vary by time and availability. 8,066 Lufthansa reviews by users on momondo have scored the airline at 6.8/10.

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
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Fredericksburg
Gaithersburg
Colonial Beach
Rockville
Linthicum Heights
Silver Spring
Towson
Manassas
Tysons
Springfield
Bethesda
Fairfax
College Park

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?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Barcelona with this policy.

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

Once all potential Barcelona to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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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1 adult
Fri 7/17
Fri 7/24

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.