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Cheap flights from Washington, D.C. Dulles Intl Airport to Barcelona from $314

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Barcelona departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Barcelona

Cheap round-trip flights

United Airlines Logo
6:35 pm - 8:20 amIAD-BCN
7h 45mnonstop
United Airlines Logo
11:15 am - 2:05 pmBCN-IAD
8h 50mnonstop
$470United Airlines
Find Deal
Mon, Sep 29 - Wed, Oct 8
Lufthansa Logo
10:20 pm - 5:55 pmIAD-BCN
13h 35m1 stop
Lufthansa Logo
8:00 am - 3:50 pmBCN-IAD
13h 50m1 stop
$471Lufthansa
Find Deal
Sun, Sep 21 - Tue, Oct 7
Icelandair Logo
8:30 pm - 2:45 pmIAD-BCN
12h 15m1 stop
Icelandair Logo
3:45 pm - 7:20 pmBCN-IAD
33h 35m1 stop
$472Icelandair
Find Deal
Thu, Oct 16 - Fri, Oct 24
United Airlines Logo
8:30 am - 9:35 amIAD-BCN
19h 05m2 stops
United Airlines Logo
10:30 am - 2:00 pmBCN-IAD
9h 30mnonstop
$474United Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3
Air Canada Logo
12:40 pm - 9:35 amIAD-BCN
14h 55m2 stops
Air Canada Logo
1:35 pm - 11:59 pmBCN-IAD
16h 24m2 stops
$475Air Canada
Find Deal
Wed, Nov 12 - Tue, Nov 18
Lufthansa Logo
6:10 pm - 4:15 pmIAD-BCN
16h 05m1 stop
Lufthansa Logo
6:50 am - 1:30 pmBCN-IAD
12h 40m1 stop
$480Lufthansa
Find Deal
Wed, Oct 15 - Thu, Oct 23
Delta Logo
7:59 pm - 8:00 amIAD-BCN
30h 01m1 stop
Delta Logo
10:15 am - 7:18 pmBCN-IAD
15h 03m1 stop
$484Delta
Find Deal
Sat, Oct 25 - Thu, Nov 6
Delta Logo
12:27 pm - 7:00 amIAD-BCN
13h 33m2 stops
Delta Logo
10:15 am - 7:18 pmBCN-IAD
15h 03m1 stop
$488Delta
Find Deal
Tue, Oct 28 - Thu, Nov 6
Icelandair Logo
8:30 pm - 2:45 pmIAD-BCN
12h 15m1 stop
Icelandair Logo
3:45 pm - 7:20 pmBCN-IAD
33h 35m1 stop
$495Icelandair
Find Deal
Thu, Oct 16 - Wed, Oct 22
Air France Logo
9:20 pm - 2:50 pmIAD-BCN
11h 30m1 stop
Air France Logo
12:20 pm - 7:15 pmBCN-IAD
12h 55m1 stop
$515Air France
Find Deal
Wed, Sep 17 - Tue, Sep 30

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight tickets
United Airlines
Sep 29
IAD6:35 pmWashington, D.C. Dulles Intl
7h 45m
BCN8:20 amBarcelona-El Prat
Oct 8
BCN11:15 amBarcelona-El Prat
8h 50m
IAD2:05 pmWashington, D.C. Dulles Intl
$470
Find similar
United Airlines
Nov 24
IAD8:30 amWashington, D.C. Dulles Intl
19h 05m
2 stops
BCN9:35 amBarcelona-El Prat
Dec 3
BCN10:30 amBarcelona-El Prat
9h 30m
IAD2:00 pmWashington, D.C. Dulles Intl
$474
Find similar
United Airlines
Oct 14
IAD3:36 pmWashington, D.C. Dulles Intl
11h 44m
1 stop
BCN9:20 amBarcelona-El Prat
Oct 21
BCN12:10 pmBarcelona-El Prat
14h 55m
1 stop
IAD9:05 pmWashington, D.C. Dulles Intl
$476
Find similar

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

Our best Lufthansa deals on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight tickets
Lufthansa
Sep 21
IAD10:20 pmWashington, D.C. Dulles Intl
13h 35m
1 stop
BCN5:55 pmBarcelona-El Prat
Oct 7
BCN8:00 amBarcelona-El Prat
13h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$471
Find similar
Lufthansa
Oct 15
IAD6:10 pmWashington, D.C. Dulles Intl
16h 05m
1 stop
BCN4:15 pmBarcelona-El Prat
Oct 23
BCN6:50 amBarcelona-El Prat
12h 40m
1 stop
IAD1:30 pmWashington, D.C. Dulles Intl
$480
Find similar
Lufthansa
Oct 8
IAD6:10 pmWashington, D.C. Dulles Intl
11h 45m
1 stop
BCN11:55 amBarcelona-El Prat
Oct 14
BCN7:50 amBarcelona-El Prat
17h 35m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$494
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat 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 September 1, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 9/29

6:35 pm-8:20 am

Nonstop7h 45m

Barcelona-El Prat

Wed 10/8

11:15 am-2:05 pm

Nonstop8h 50m

$470

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 9/21

10:20 pm-5:55 pm

1 stop13h 35m

Barcelona-El Prat

Tue 10/7

8:00 am-3:50 pm

1 stop13h 50m

$471

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 10/16

8:30 pm-2:45 pm

1 stop12h 15m

Barcelona-El Prat

Fri 10/24

3:45 pm-7:20 pm

1 stop33h 35m

$472

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 11/24

8:30 am-9:35 am

2 stops19h 05m

Barcelona-El Prat

Wed 12/3

10:30 am-2:00 pm

Nonstop9h 30m

$474

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 11/12

12:40 pm-9:35 am

2 stops14h 55m

Barcelona-El Prat

Tue 11/18

1:35 pm-11:59 pm

2 stops16h 24m

$475

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 10/15

6:10 pm-4:15 pm

1 stop16h 05m

Barcelona-El Prat

Thu 10/23

6:50 am-1:30 pm

1 stop12h 40m

$480

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sat 10/25

7:59 pm-8:00 am

1 stop30h 01m

Barcelona-El Prat

Thu 11/6

10:15 am-7:18 pm

1 stop15h 03m

$484

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 10/28

12:27 pm-7:00 am

2 stops13h 33m

Barcelona-El Prat

Thu 11/6

10:15 am-7:18 pm

1 stop15h 03m

$488

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Thu 10/16

8:30 pm-2:45 pm

1 stop12h 15m

Barcelona-El Prat

Wed 10/22

3:45 pm-7:20 pm

1 stop33h 35m

$495

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 9/17

9:20 pm-2:50 pm

1 stop11h 30m

Barcelona-El Prat

Tue 9/30

12:20 pm-7:15 pm

1 stop12h 55m

$515

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat 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 cheapest month to fly to Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport is in January. Flight prices, which tend to average around $616, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport during November instead. Flights to Barcelona-El Prat Airport in November, while not as cheap as those in January, still average around $701.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Monday when prices can be found for as low as $996. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,272. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $759 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,182 on average. Flights to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Barcelona-El Prat Airport?

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $808 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport for as low as $685 on momondo.

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

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

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

As of September 2025, prices for Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flights are approximately 27% cheaper when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$394

Fastest flight time

7h 45m

Direct flights

Every day
The best one-way flight to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $394. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport found on momondo in the last 72 hours is $560.
The fastest flight from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport takes 7h 45m
Direct flights go from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport every day.
Search flight deals

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

    A flight from Washington, D.C. Dulles Intl to Barcelona-El Prat will travel around 4046.0 mi. A reasonable flight in good conditions will take 7h 45m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport are refreshed on a daily basis.

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

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

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The travel and health documents you'll need for your trip to Barcelona-El Prat 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 Barcelona-El Prat 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 Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport?

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $384Free CancellationRating
7.0
544 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $409Free CancellationRating
7.4
1,480 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $415Free CancellationRating
7.1
1,967 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $468Free CancellationRating
7.9
7,974 reviews
Search Delta flights
British AirwaysPriceFrom $498Free CancellationRating
6.7
7,336 reviews
Search British Airways flights
Air FrancePriceFrom $500Free CancellationRating
7.4
1,472 reviews
Search Air France flights
United AirlinesPriceFrom $503Free CancellationRating
7.4
8,936 reviews
Search United Airlines flights
American AirlinesPriceFrom $524Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $544Free CancellationRating
6.8
7,379 reviews
Search Lufthansa flights
SWISSPriceFrom $544Free CancellationRating
7.6
1,717 reviews
Search SWISS flights

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

    United Airlines flies from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport around 7 times per week, with 8,936 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport in the last 72 hours was $503 (round-trip), much lower than the average airfare cost of $1,008 for United Airlines flights on this route.

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
Tarragona
L'Hospitalet de Llobregat
El Prat de Llobregat
Castelldefels
Santa Susanna
Badalona
Calella
Cambrils
Cadaques
Empuriabrava
Pineda de Mar
Roses
Pals
Malgrat de Mar
Palafrugell
Tortosa

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Barcelona for you.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Barcelona flights to just show those with flexible booking policies.

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

Once all potential Washington, D.C. to Barcelona 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 Washington, D.C. to Barcelona right now. Can momondo alert me if prices change?

Price alerts on flights to Barcelona from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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