BCN - IAD

$449 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 8/10. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$653
Typical prices: $920-$643
British Airways
Tue 8/25Tue 9/8
BCN - IAD • 1 stop
Cheapest non-stop
$697
Typical prices: $767-$660
Lufthansa
Sat 10/3Sat 10/10
BCN - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa Premium Economy adds 50% more space and an extra checked bag.
United economy includes free meals and drinks on this long-haul international route.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $653 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 8h 45m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 83% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $768 (round-trip)
Shortest trip • 12h 25m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Expert advice
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

Tue, Aug 25 - Tue, Sep 8
British Airways Logo
9:30 pm - 3:55 pm
BCN
-
IAD
24h 25m
1 stop
British Airways Logo
10:25 pm - 3:40 pm
IAD
-
BCN
11h 15m
1 stop
$653British Airways
Tue, Sep 1 - Sun, Sep 20
Delta Logo
6:20 am - 4:38 pm
BCN
-
IAD
16h 18m
2 stops
Delta Logo
6:15 pm - 5:10 pm
IAD
-
BCN
16h 55m
1 stop
$654Delta
Tue, Sep 1 - Sun, Sep 20
Delta Logo
6:20 am - 6:33 pm
BCN
-
IAD
18h 13m
2 stops
Delta Logo
6:15 pm - 3:35 pm
IAD
-
BCN
15h 20m
1 stop
$655Delta
Sun, Oct 4 - Sun, Oct 25
Air France Logo
6:10 am - 4:05 pm
BCN
-
IAD
15h 55m
1 stop
Air France Logo
10:30 pm - 5:05 pm
IAD
-
BCN
13h 35m
1 stop
$656Air France
Fri, Aug 28 - Wed, Sep 9
ITA Airways Logo
6:20 am - 2:30 pm
BCN
-
IAD
14h 10m
1 stop
ITA Airways Logo
4:30 pm - 3:55 pm
IAD
-
BCN
17h 25m
1 stop
$658ITA Airways
Tue, Sep 1 - Thu, Sep 17
Delta Logo
6:20 am - 4:38 pm
BCN
-
IAD
16h 18m
2 stops
Delta Logo
12:25 pm - 9:00 am
IAD
-
BCN
14h 35m
2 stops
$659Delta
Tue, Sep 1 - Sun, Sep 20
Delta Logo
6:20 am - 8:05 pm
BCN
-
IAD
19h 45m
2 stops
Delta Logo
7:16 pm - 4:25 pm
IAD
-
BCN
15h 09m
2 stops
$660Delta
Sat, Oct 24 - Sun, Nov 1
Delta Logo
6:10 am - 7:35 pm
BCN
-
IAD
19h 25m
1 stop
Delta Logo
5:00 pm - 2:00 pm
IAD
-
BCN
15h 00m
2 stops
$661Delta
Sat, Oct 24 - Sun, Nov 1
Delta Logo
6:10 am - 6:26 pm
BCN
-
IAD
18h 16m
2 stops
Delta Logo
5:00 pm - 2:00 pm
IAD
-
BCN
15h 00m
2 stops
$662Delta
Tue, Sep 1 - Sun, Sep 20
Delta Logo
6:20 am - 6:33 pm
BCN
-
IAD
18h 13m
2 stops
Delta Logo
7:16 pm - 4:25 pm
IAD
-
BCN
15h 09m
2 stops
$663Delta
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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport departing in August.

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 Saturdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington Dulles Airport, Monday is the cheapest day to fly and Saturday 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 $521 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is $905 and $846 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 $653, 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 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

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.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

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.

Blane Bachelor

Blane Bachelor

Expert on BCN

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.

Good to know

Low seasonFebruary
Cheapest flight$449
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 3% increase in price.
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 5 days, the lowest price for a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport was $449 for a one-way ticket and $653 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?

    Lufthansa, Iberia, Air Canada, Vueling, and Virgin Atlantic offer inflight Wi-Fi service on the Barcelona-El Prat to Washington Dulles Airport flight route.

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

    The Boeing 767-400 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., United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Barcelona to Washington, D.C. are United Airlines and Lufthansa. With an average price for the route of $865 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $852 and an overall rating of 6.8.

  • 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 $783 or less one-way and $717 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 airlines flying 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.
7.4
United AirlinesOverall score based on 9805 reviews
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

2.0 MediocreLinda, Jun 2026
LIS - IAD
Read more United Airlines reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Never took the flight due to strikes which happens but there was no timely coordination to find me new flights. I had to call Lufthansa and Kayak support only to be given no good options and a 75% refund. Ended up spending way more for alternative flights that I coordinated myself for a trip I had booked 6 months prior.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

Come on. A two hour, 7am flight and a small bottle of water and a tiny chocolate bar was provided. No coffee, no nothing. Poor.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

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

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.

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

Information on your arrival and departure airports