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Cheap flights from Washington, D.C. Dulles Intl Airport to Barcelona from $270

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 12/31. 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

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
11:30 pm - 5:15 pmIAD-BCN
12h 45m1 stop
TAP AIR PORTUGAL Logo
10:55 am - 4:15 pmBCN-IAD
34h 20m1 stop
$438TAP AIR PORTUGAL
Find Deal
Sun, Mar 15 - Sun, Mar 22
TAP AIR PORTUGAL Logo
11:30 pm - 11:45 pmIAD-BCN
19h 15m1 stop
TAP AIR PORTUGAL Logo
2:35 pm - 10:00 pmBCN-IAD
12h 25m1 stop
$441TAP AIR PORTUGAL
Find Deal
Wed, Mar 18 - Wed, Mar 25
TAP AIR PORTUGAL Logo
6:30 pm - 5:15 pmIAD-BCN
17h 45m1 stop
TAP AIR PORTUGAL Logo
10:55 am - 4:15 pmBCN-IAD
34h 20m1 stop
$442TAP AIR PORTUGAL
Find Deal
Mon, Mar 16 - Sun, Mar 22
Scandinavian Airlines Logo
12:23 pm - 6:20 pmIAD-BCN
23h 57m2 stops
Scandinavian Airlines Logo
7:10 pm - 6:50 pmBCN-IAD
29h 40m1 stop
$444Scandinavian Airlines
Find Deal
Sun, Jan 18 - Fri, Jan 23
TAP AIR PORTUGAL Logo
6:30 pm - 5:15 pmIAD-BCN
17h 45m1 stop
TAP AIR PORTUGAL Logo
6:45 am - 4:15 pmBCN-IAD
14h 30m1 stop
$445TAP AIR PORTUGAL
Find Deal
Mon, Mar 9 - Thu, Mar 26
Icelandair Logo
7:40 pm - 1:15 pmIAD-BCN
11h 35m1 stop
Icelandair Logo
11:50 am - 6:30 pmBCN-IAD
12h 40m1 stop
$448Icelandair
Find Deal
Wed, Jan 14 - Tue, Feb 17
TAP AIR PORTUGAL Logo
5:30 pm - 10:05 amIAD-BCN
10h 35m1 stop
TAP AIR PORTUGAL Logo
10:55 am - 9:00 pmBCN-IAD
16h 05m1 stop
$450TAP AIR PORTUGAL
Find Deal
Mon, Jan 12 - Fri, Jan 23
TAP AIR PORTUGAL Logo
5:05 pm - 2:00 pmIAD-BCN
14h 55m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 3:05 pmBCN-IAD
15h 05m1 stop
$454TAP AIR PORTUGAL
Find Deal
Tue, Mar 31 - Fri, Apr 10
TAP AIR PORTUGAL Logo
5:05 pm - 2:00 pmIAD-BCN
14h 55m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 8:35 pmBCN-IAD
20h 35m1 stop
$456TAP AIR PORTUGAL
Find Deal
Tue, Apr 21 - Wed, Apr 29
Scandinavian Airlines Logo
7:59 pm - 11:00 amIAD-BCN
33h 01m2 stops
Scandinavian Airlines Logo
7:00 pm - 4:50 pmBCN-IAD
27h 50m1 stop
$457Scandinavian Airlines
Find Deal
Wed, Apr 1 - Thu, Apr 9

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

Our best TAP AIR PORTUGAL deals on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight tickets
TAP AIR PORTUGAL
Mar 15
IAD11:30 pmWashington, D.C. Dulles Intl
12h 45m
1 stop
BCN5:15 pmBarcelona-El Prat
Mar 22
BCN10:55 amBarcelona-El Prat
34h 20m
1 stop
IAD4:15 pmWashington, D.C. Dulles Intl
$438
Find similar
TAP AIR PORTUGAL
Mar 18
IAD11:30 pmWashington, D.C. Dulles Intl
19h 15m
1 stop
BCN11:45 pmBarcelona-El Prat
Mar 25
BCN2:35 pmBarcelona-El Prat
12h 25m
1 stop
IAD10:00 pmWashington, D.C. Dulles Intl
$441
Find similar
TAP AIR PORTUGAL
Mar 16
IAD6:30 pmWashington, D.C. Dulles Intl
17h 45m
1 stop
BCN5:15 pmBarcelona-El Prat
Mar 22
BCN10:55 amBarcelona-El Prat
34h 20m
1 stop
IAD4:15 pmWashington, D.C. Dulles Intl
$442
Find similar

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

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flight tickets
Scandinavian Airlines
Jan 18
IAD12:23 pmWashington, D.C. Dulles Intl
23h 57m
2 stops
BCN6:20 pmBarcelona-El Prat
Jan 23
BCN7:10 pmBarcelona-El Prat
29h 40m
1 stop
IAD6:50 pmWashington, D.C. Dulles Intl
$444
Find similar
Scandinavian Airlines
Apr 1
IAD7:59 pmWashington, D.C. Dulles Intl
33h 01m
2 stops
BCN11:00 amBarcelona-El Prat
Apr 9
BCN7:00 pmBarcelona-El Prat
27h 50m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
$457
Find similar
Scandinavian Airlines
Apr 8
IAD7:59 pmWashington, D.C. Dulles Intl
33h 01m
2 stops
BCN11:00 amBarcelona-El Prat
Apr 17
BCN11:50 amBarcelona-El Prat
35h 00m
2 stops
IAD4:50 pmWashington, D.C. Dulles Intl
$461
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 December 3, 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

Sun 3/15

11:30 pm-5:15 pm

1 stop12h 45m

Barcelona-El Prat

Sun 3/22

10:55 am-4:15 pm

1 stop34h 20m

$438

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 3/18

11:30 pm-11:45 pm

1 stop19h 15m

Barcelona-El Prat

Wed 3/25

2:35 pm-10:00 pm

1 stop12h 25m

$441

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 3/16

6:30 pm-5:15 pm

1 stop17h 45m

Barcelona-El Prat

Sun 3/22

10:55 am-4:15 pm

1 stop34h 20m

$442

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Sun 1/18

12:23 pm-6:20 pm

2 stops23h 57m

Barcelona-El Prat

Fri 1/23

7:10 pm-6:50 pm

1 stop29h 40m

$444

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 3/9

6:30 pm-5:15 pm

1 stop17h 45m

Barcelona-El Prat

Thu 3/26

6:45 am-4:15 pm

1 stop14h 30m

$445

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 1/14

7:40 pm-1:15 pm

1 stop11h 35m

Barcelona-El Prat

Tue 2/17

11:50 am-6:30 pm

1 stop12h 40m

$448

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Mon 1/12

5:30 pm-10:05 am

1 stop10h 35m

Barcelona-El Prat

Fri 1/23

10:55 am-9:00 pm

1 stop16h 05m

$450

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 3/31

5:05 pm-2:00 pm

1 stop14h 55m

Barcelona-El Prat

Fri 4/10

6:00 am-3:05 pm

1 stop15h 05m

$454

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 4/21

5:05 pm-2:00 pm

1 stop14h 55m

Barcelona-El Prat

Wed 4/29

6:00 am-8:35 pm

1 stop20h 35m

$456

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Wed 4/1

7:59 pm-11:00 am

2 stops33h 01m

Barcelona-El Prat

Thu 4/9

7:00 pm-4:50 pm

1 stop27h 50m

$457

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 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 October. Flight prices, which tend to average around $644, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Barcelona-El Prat Airport from Washington, D.C. Dulles Intl Airport during February instead. Flights to Barcelona-El Prat Airport in February, while not as cheap as those in October, still average around $648.

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 $788. 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 $1,166. 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 $1,057 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 $786 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 $690 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 December 2025, prices for Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport flights are approximately 18% more expensive 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

$473

Fastest flight time

7h 50m

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 $473. 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 $551.
The fastest flight from Washington, D.C. Dulles Intl Airport to Barcelona-El Prat Airport takes 7h 50m
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 50m.

  • 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
TAP AIR PORTUGALPriceFrom $375Free CancellationRating
7.1
2,081 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $385Free CancellationRating
7.0
584 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $409Free CancellationRating
7.4
1,591 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
British AirwaysPriceFrom $498Free CancellationRating
6.7
7,550 reviews
Search British Airways flights
LufthansaPriceFrom $499Free CancellationRating
6.8
7,603 reviews
Search Lufthansa flights
Air FrancePriceFrom $500Free CancellationRating
7.4
1,500 reviews
Search Air France flights
American AirlinesPriceFrom $511Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
ITA AirwaysPriceFrom $514Free CancellationRating
6.7
1,094 reviews
Search ITA Airways 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 9,065 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 $900 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
El Prat de Llobregat
Castelldefels
L'Hospitalet de Llobregat
Tarragona
Santa Susanna
Cambrils
Cadaques
Empuriabrava
Roses
Calella
Pineda de Mar
Badalona
Pals
Palafrugell
Tortosa
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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