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Cheap flights from Washington, D.C. Dulles Intl Airport to Barcelona from $348

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 9/30. 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 Washington, D.C. Dulles Intl Airport to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
5:45 pm - 1:30 am
IAD
-
BCN
25h 45m
1 stop
TAP AIR PORTUGAL Logo
8:20 pm - 3:10 pm
BCN
-
IAD
24h 50m
1 stop
$648TAP AIR PORTUGAL
Wed, Aug 12 - Wed, Aug 26
TAP AIR PORTUGAL Logo
10:35 pm - 10:35 am
IAD
-
BCN
30h 00m
1 stop
TAP AIR PORTUGAL Logo
8:20 pm - 3:10 pm
BCN
-
IAD
24h 50m
1 stop
$653TAP AIR PORTUGAL
Mon, Aug 24 - Mon, Aug 31
Multiple Airlines Logo
1:15 pm - 9:15 pm
IAD
-
BCN
26h 00m
2 stops
Multiple Airlines Logo
2:45 pm - 7:45 pm
BCN
-
IAD
35h 00m
2 stops
$658Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
5:40 pm - 11:45 pm
IAD
-
BCN
24h 05m
2 stops
Multiple Airlines Logo
8:50 am - 8:35 pm
BCN
-
IAD
17h 45m
2 stops
$658Multiple Airlines
Sun, Sep 20 - Tue, Sep 29
ITA Airways Logo
4:45 pm - 10:50 am
IAD
-
BCN
12h 05m
1 stop
ITA Airways Logo
6:20 am - 2:40 pm
BCN
-
IAD
14h 20m
1 stop
$661ITA Airways
Tue, Nov 24 - Tue, Dec 15
ITA Airways Logo
4:45 pm - 10:50 am
IAD
-
BCN
12h 05m
1 stop
ITA Airways Logo
6:20 am - 2:40 pm
BCN
-
IAD
14h 20m
1 stop
$661ITA Airways
Tue, Nov 24 - Thu, Dec 17
Turkish Airlines Logo
1:15 pm - 11:15 pm
IAD
-
BCN
28h 00m
1 stop
Turkish Airlines Logo
7:05 pm - 11:30 am
BCN
-
IAD
22h 25m
1 stop
$677Turkish Airlines
Sun, Sep 20 - Tue, Sep 29
Turkish Airlines Logo
1:15 pm - 11:15 pm
IAD
-
BCN
28h 00m
1 stop
Turkish Airlines Logo
12:10 pm - 11:30 am
BCN
-
IAD
29h 20m
1 stop
$678Turkish Airlines
Sun, Sep 20 - Tue, Sep 29
British Airways Logo
9:30 pm - 8:30 pm
IAD
-
BCN
17h 00m
1 stop
British Airways Logo
7:40 am - 3:50 pm
BCN
-
IAD
14h 10m
1 stop
$710British Airways
Wed, Sep 23 - Thu, Apr 15
British Airways Logo
10:25 pm - 5:35 pm
IAD
-
BCN
13h 10m
1 stop
British Airways Logo
9:20 pm - 3:50 pm
BCN
-
IAD
24h 30m
1 stop
$710British Airways
Mon, Sep 21 - Mon, Apr 12

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Royal Air Maroc flights from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport

Our best Royal Air Maroc deals on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight tickets
Royal Air Maroc
Sep 21
IAD9:00 pmWashington, D.C. Dulles Intl
16h 10m
1 stop
BCN7:10 pmBarcelona-El Prat
Apr 14
BCN1:45 pmBarcelona-El Prat
11h 15m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$686
Royal Air Maroc
Sep 20
IAD9:00 pmWashington, D.C. Dulles Intl
16h 10m
1 stop
BCN7:10 pmBarcelona-El Prat
Apr 15
BCN8:10 pmBarcelona-El Prat
28h 50m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$687
Royal Air Maroc
Oct 9
IAD9:00 pmWashington, D.C. Dulles Intl
16h 10m
1 stop
BCN7:10 pmBarcelona-El Prat
Oct 13
BCN8:10 pmBarcelona-El Prat
28h 50m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$688

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

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight tickets
Turkish Airlines
Nov 20
IAD1:30 pmWashington, D.C. Dulles Intl
21h 35m
1 stop
BCN5:05 pmBarcelona-El Prat
Dec 1
BCN2:35 pmBarcelona-El Prat
34h 50m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$699
Turkish Airlines
Aug 7
IAD1:20 pmWashington, D.C. Dulles Intl
22h 20m
1 stop
BCN5:40 pmBarcelona-El Prat
Sep 30
BCN7:40 amBarcelona-El Prat
33h 50m
1 stop
IAD11:30 amWashington, D.C. Dulles Intl
$789

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 July 28, 2026.
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

Cheapest round-trip

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 8/12

5:45 pm-1:30 am

1 stop25h 45m

Barcelona-El Prat

Wed 8/26

8:20 pm-3:10 pm

1 stop24h 50m

$648

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 8/24

10:35 pm-10:35 am

1 stop30h 00m

Barcelona-El Prat

Mon 8/31

8:20 pm-3:10 pm

1 stop24h 50m

$653

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 9/8

1:15 pm-9:15 pm

2 stops26h 00m

Barcelona-El Prat

Tue 9/15

2:45 pm-7:45 pm

2 stops35h 00m

$658

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 9/20

5:40 pm-11:45 pm

2 stops24h 05m

Barcelona-El Prat

Tue 9/29

8:50 am-8:35 pm

2 stops17h 45m

$658
Quickest round-trip

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 11/24

4:45 pm-10:50 am

1 stop12h 05m

Barcelona-El Prat

Tue 12/15

6:20 am-2:40 pm

1 stop14h 20m

$661

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 11/24

4:45 pm-10:50 am

1 stop12h 05m

Barcelona-El Prat

Thu 12/17

6:20 am-2:40 pm

1 stop14h 20m

$661

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 9/20

1:15 pm-11:15 pm

1 stop28h 00m

Barcelona-El Prat

Tue 9/29

7:05 pm-11:30 am

1 stop22h 25m

$677

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 9/20

1:15 pm-11:15 pm

1 stop28h 00m

Barcelona-El Prat

Tue 9/29

12:10 pm-11:30 am

1 stop29h 20m

$678

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 9/23

9:30 pm-8:30 pm

1 stop17h 00m

Barcelona-El Prat

Thu 4/15

7:40 am-3:50 pm

1 stop14h 10m

$710

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 9/21

10:25 pm-5:35 pm

1 stop13h 10m

Barcelona-El Prat

Mon 4/12

9:20 pm-3:50 pm

1 stop24h 30m

$710

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 Barcelona from

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

Prices are currently low for flights on this route.

Typical prices usually range from $687 to $1,222.
The lowest price recently found on this route was $653.

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 February. Flight prices, which tend to average around $587, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in February, still average around $614.

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 Sunday when prices can be found for as low as $859. 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 Thursday because tickets tend to average around $1,225. 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 evening is the least expensive time of day to depart. momondo users have found prices as low as $928 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,128 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 from Washington, D.C. Dulles Intl Airport 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 $823 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 $731 on momondo.

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

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport 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 July 2026, prices for Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flights are approximately 41% 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

$784

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 $784. 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 $950.
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

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

  • 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 $390Free CancellationRating
7.0
715 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $390Free CancellationRating
7.2
2,350 reviews
Search TAP AIR PORTUGAL flights
SWISSPriceFrom $479Free CancellationRating
7.5
2,019 reviews
Search SWISS flights
DeltaPriceFrom $484Free CancellationRating
7.8
8,483 reviews
Search Delta flights
Air FrancePriceFrom $486Free CancellationRating
7.5
1,628 reviews
Search Air France flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
10,048 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $490Free CancellationRating
7.4
1,903 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $499Free CancellationRating
6.8
8,164 reviews
Search Lufthansa flights
British AirwaysPriceFrom $504Free CancellationRating
6.7
8,129 reviews
Search British Airways flights
American AirlinesPriceFrom $511Free CancellationRating
7.1
11,839 reviews
Search American Airlines 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 5 times per week, with 10,048 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 $489 (round-trip), much lower than the average airfare cost of $986 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
Tarragona
Castelldefels
El Prat de Llobregat
L'Hospitalet de Llobregat
Tossa de Mar
Calella
Cambrils
Cadaques
Roses
Badalona
Santa Susanna
Empuriabrava
Calella de Palafrugell
Pals
Palafrugell
Malgrat de Mar
La Pineda

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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