BCN - IAD

$309 Find Cheap Flights from Barcelona to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Barcelona-El Prat to Dulles Intl departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Barcelona to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Barcelona to Washington, D.C., as well as popular online travel agencies
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Flight Deals

Cheap Flights from Barcelona-El Prat to Dulles Intl (BCN-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Barcelona-El Prat to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Barcelona-El Prat to Dulles Intl

Thu, Oct 16 - Fri, Oct 24
Scandinavian Airlines Logo
10:30 am - 7:59 pmBCN-IAD
15h 29m2 stops
Scandinavian Airlines Logo
10:05 pm - 6:10 pmIAD-BCN
14h 05m1 stop
$472Scandinavian Airlines
Find Deal
Wed, Oct 15 - Sun, Oct 19
Icelandair Logo
3:45 pm - 10:10 pmBCN-IAD
12h 25m1 stop
Icelandair Logo
8:30 pm - 2:45 pmIAD-BCN
12h 15m1 stop
$473Icelandair
Find Deal
Sun, Nov 9 - Sat, Dec 6
TAP AIR PORTUGAL Logo
6:05 pm - 3:15 pmBCN-IAD
27h 10m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 5:15 pmIAD-BCN
17h 45m1 stop
$476TAP AIR PORTUGAL
Find Deal
Thu, Nov 27 - Tue, Dec 2
TAP AIR PORTUGAL Logo
6:45 am - 3:15 pmBCN-IAD
14h 30m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 10:05 amIAD-BCN
10h 35m1 stop
$478TAP AIR PORTUGAL
Find Deal
Sun, Jan 18 - Thu, Feb 12
Scandinavian Airlines Logo
7:10 pm - 3:20 pmBCN-IAD
26h 10m1 stop
Scandinavian Airlines Logo
8:30 pm - 6:20 pmIAD-BCN
15h 50m1 stop
$485Scandinavian Airlines
Find Deal
Sun, Jan 18 - Thu, Feb 12
American Airlines Logo
10:40 am - 10:18 pmBCN-IAD
17h 38m1 stop
American Airlines Logo
11:30 am - 8:50 amIAD-BCN
15h 20m1 stop
$503American Airlines
Find Deal
Mon, Jan 19 - Wed, Feb 11
Lufthansa Logo
6:50 am - 3:50 pmBCN-IAD
15h 00m1 stop
Lufthansa Logo
6:00 pm - 1:00 pmIAD-BCN
13h 00m1 stop
$509Lufthansa
Find Deal
Sat, Jan 17 - Fri, Feb 13
United Airlines Logo
9:55 am - 8:15 pmBCN-IAD
16h 20m1 stop
United Airlines Logo
1:02 pm - 9:35 amIAD-BCN
14h 33m2 stops
$512United Airlines
Find Deal
Sun, Jan 18 - Tue, Feb 10
United Airlines Logo
1:55 pm - 8:15 pmBCN-IAD
12h 20m1 stop
United Airlines Logo
5:40 pm - 5:35 pmIAD-BCN
17h 55m1 stop
$518United Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
Lufthansa Logo
6:50 am - 1:30 pmBCN-IAD
12h 40m1 stop
Lufthansa Logo
10:20 pm - 5:55 pmIAD-BCN
13h 35m1 stop
$553Lufthansa
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
United offers free meals in economy on long-haul flights.
Prepare for long security lines at Barcelona-El Prat.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Scandinavian Airlines
Cheapest • from $472 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 29% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$472
Typical prices: $519-673
Scandinavian Airlines
Thu 10/16Fri 10/24
BCN - IAD • 2 stops
Cheapest non-stop
$576
Typical prices: $601-767
Lufthansa
Thu 10/2Sat 10/18
BCN - IAD • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Expert advice

Expert advice for your flight from Barcelona-El Prat to Dulles Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United Polaris offers lie-flat seats with aisle access on long-haul flights.


United offers free meals and drinks in economy on long-haul international flights.

Lufthansa

Enjoy 50% more personal space and an extra checked bag in Premium Economy.


Lufthansa offers 11 special meal choices for dietary needs, order 24 hours before departure.

Read more about Lufthansaby Jessica Macdonald
Airports
BCN

Prepare for long security lines at BCN; arrive three hours early for international flights to ensure smooth departure.

Read more about BCNby Blane Bachelor
IAD

Use the Silver Line Metro for a convenient 50-minute ride from IAD to downtown D.C. Check schedules as it doesn't run 24 hours.

Read more about IADby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Blane Bachelor

Blane Bachelor

Expert on BCN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Booking Insights

KAYAK's insights & trends for Barcelona-El Prat to Dulles Intl flights

Get data-powered insights and trends into flights from Barcelona-El Prat to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

What’s the cheapest day of the week to fly from Barcelona-El Prat to Washington Dulles Airport?

The average price of all round-trip flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Barcelona-El Prat to Washington Dulles Airport, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington Dulles Airport, Sunday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport is February, where tickets cost $432 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $746 and $707 respectively.

Can I save money by flying with a layover from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $549, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$309
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Barcelona-El Prat to Washington Dulles Airport

When to book flights from Barcelona-El Prat to Dulles Intl

Are your dates flexible? Find out the best times to travel from Barcelona-El Prat to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Barcelona-El Prat to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport was $309 for a one-way ticket and $472 for a round-trip.

  • Do I need a passport to fly between Barcelona-El Prat and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Barcelona-El Prat and on arrival in Washington Dulles Airport.

  • Which airports will I be using when flying from Barcelona-El Prat to Washington Dulles Airport?

    On your way to Washington Dulles Airport, you’ll fly out from Barcelona-El Prat. You’ll be landing at Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Barcelona-El Prat to Washington Dulles Airport?

    All the following airlines offer inflight Wi-Fi service on the Barcelona-El Prat to Washington Dulles Airport flight route: Iberia, Air Canada, Air France, KLM, Delta, and Finnair.

  • Which aircraft models fly most regularly from Barcelona-El Prat to Washington Dulles Airport?

    The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the Barcelona-El Prat to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Barcelona-El Prat to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Barcelona-El Prat and Washington Dulles Airport.

  • On which days can I fly direct from Barcelona-El Prat to Washington Dulles Airport?

    There are nonstop flights from Barcelona-El Prat to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Barcelona to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Barcelona to Washington, D.C. are Delta and United Airlines. With an average price for the route of $438 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $752 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Barcelona-El Prat to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Barcelona-El Prat to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Barcelona-El Prat to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Barcelona-El Prat is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Barcelona-El Prat to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Barcelona-El Prat with another airline. Booking your flights between Barcelona-El Prat and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Barcelona-El Prat to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Barcelona-El Prat up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $601 or less one-way and $549 or less round-trip.

Prefer to fly direct from Barcelona-El Prat to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Barcelona-El Prat to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Barcelona-El Prat to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Barcelona-El Prat

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 4 airlines serving from Barcelona-El Prat to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Barcelona to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Barcelona-El Prat to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7954 reviews
7.9Comfort
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

The airport crew helped a lot, what I didn’t like? We were not informed that we needed to pick our luggage’s, if the crew at the luggage center didn’t tell me I would have been home without my belongings, I was heading out to my next connecting flight while looking for what gate to go to, I asked one of the crews for help, he told me and he also told me to not forget to grab my luggage’s which was chocking, because on my way out the country that wasn’t required, I just hope none of your customers lost their luggage’s because of this.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

I will avoid TAP if I can, the ground experience was very poor with bad behaviour from the ground crew and it was only a bit better on the aircraft.

A good, comfortable flight with friendly crew and good entertainment options.

Flight was fine. Second meal ( fish sandwich on hard roll) was awful. My suitcase didn’t make the flight. It had been located, but won’t be delivered until tomorrow. Five days after flight

There was chaos at the Naples airport. We arrived three hours early for the flight but there was no invitation available about where to go to check bags until an hour later. Then we had to go to a different terminal to check our bags and check in and back to the first to board.

Boarding experience was awful. TAP claims I did not have check in luggage with tickets. I went 3-4 check in agents until I finally found a helpful kind agent who checked in my luggage with no fees. On top of that our flight was over 2 hours delayed with barely an apology or explanation.

We flew TAP last October from Newark to Lisbon. The meal was bad. This flight had good food. Also, this flight was delayed. There were TAP employees waiting at Lisbon to make sure we made our connecting flight. I find the TAP website and app frustrating, but the service once we reached the airport was very good

Was the best airplane ✈️ ever that I never see I will traveling again again with u guys.

Flight was delayed on 6/20 to miss international connection. Next flight out was 24 hours later. Not acceptable.

Flight from FNC to OBO was cancelled. We were rebooked to Lisbon later in the day. It was inconvenient but it worked out ok in the end.

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

It was chaotic. It was overbooked so we didn't have seats until the end but they turned out to be good seats. The gate was at the end of the airport. We had to get busses to the tarmac and board. It just seemed chaotic. Flight was OK. Food was not so good. Lufthansa used to be such a great airline and now as it's with everything else: If you have money you get comforts but if you don't then you end up below deck with the rest of the cattle.

Welp - they boarded us appropriately...then had us sit on the plane for over two hours before cancelling the flight...which meant another night in Munich. I probably had it a little better than most as over 500 people had to be accommodated/re-booked etc. The next day I boarded the same flight (for which I had now been ticketed 3 straight days) and - with "only" an hour delay, managed to finally get home over 2 days later than scheduled. I haven't flown Lufthansa to Europe in years...and I won't be looking to do so again in the future. To be clear, though, the people I interacted with - flight crew, Service Center, check-in were all professional and courteous - management is clearly to blame for their lack of communication and unpreparedness for when things go wrong.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Both flights were delayed over 1 hour. And I had to pay for seats, even though my reservation supposedly included free seat selection.

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Seat very cramped, could not recline. No cheese with meal. Staff very helpful.

Everything you need to know for your flight from Barcelona-El Prat to Dulles Intl

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