BCN - IAD

$366 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 4/9. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$489
Overall average: $823
ITA Airways
Fri 4/17Sun 4/19
BCN - IAD • 1 stop
Cheapest non-stop
$633
Typical prices: $832-$954
Lufthansa
Fri 4/3Fri 4/17
BCN - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
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
Cheapest • from $498 (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 9h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $689 (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 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% 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

Fri, Apr 17 - Sun, Apr 19
ITA Airways Logo
6:20 am - 2:30 pm
BCN
-
IAD
14h 10m
1 stop
ITA Airways Logo
4:30 pm - 11:15 pm
IAD
-
BCN
24h 45m
1 stop
$489ITA Airways
Fri, Apr 10 - Sun, Apr 19
TAP AIR PORTUGAL Logo
6:00 am - 3:10 pm
BCN
-
IAD
15h 10m
1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 9:50 pm
IAD
-
BCN
17h 15m
1 stop
$498TAP AIR PORTUGAL
Sat, Apr 25 - Sun, Oct 25
Royal Air Maroc Logo
8:10 pm - 7:00 pm
BCN
-
IAD
28h 50m
1 stop
Royal Air Maroc Logo
9:45 pm - 11:45 am
IAD
-
BCN
33h 00m
1 stop
$499Royal Air Maroc
Mon, Apr 13 - Mon, Apr 20
TAP AIR PORTUGAL Logo
8:20 pm - 3:10 pm
BCN
-
IAD
24h 50m
1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 7:20 pm
IAD
-
BCN
14h 45m
1 stop
$500TAP AIR PORTUGAL
Wed, Apr 22 - Sun, Apr 26
TAP AIR PORTUGAL Logo
8:20 pm - 3:10 pm
BCN
-
IAD
24h 50m
1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 4:55 pm
IAD
-
BCN
12h 20m
1 stop
$505TAP AIR PORTUGAL
Tue, Apr 28 - Tue, May 5
ITA Airways Logo
6:20 am - 2:30 pm
BCN
-
IAD
14h 10m
1 stop
ITA Airways Logo
4:30 pm - 10:50 am
IAD
-
BCN
12h 20m
1 stop
$512ITA Airways
Fri, Apr 17 - Sun, Apr 19
TAP AIR PORTUGAL Logo
6:00 am - 3:10 pm
BCN
-
IAD
15h 10m
1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 9:50 pm
IAD
-
BCN
17h 15m
1 stop
$513TAP AIR PORTUGAL
Tue, Apr 28 - Tue, May 5
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
$519ITA Airways
Sat, Sep 5 - Sun, Sep 27
ITA Airways Logo
6:20 am - 2:30 pm
BCN
-
IAD
14h 10m
1 stop
ITA Airways Logo
4:30 pm - 10:50 am
IAD
-
BCN
12h 20m
1 stop
$522ITA Airways
Sat, Sep 5 - Sun, Sep 27
ITA Airways Logo
6:20 am - 9:10 pm
BCN
-
IAD
20h 50m
2 stops
ITA Airways Logo
4:30 pm - 10:50 am
IAD
-
BCN
12h 20m
1 stop
$525ITA Airways
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.

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 Thursdays 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 $463 (return) on average. On the other hand, the most expensive months are April and August, where the average cost of round-trip tickets is $823 and $818 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 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 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
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.

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.

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$366
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 8% 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 3 days, the lowest price for a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport was $366 for a one-way ticket and $498 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?

    Air France, KLM, Delta, Virgin Atlantic, and Iberia 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 TAP AIR PORTUGAL?

    The two airlines most popular with KAYAK users for flights from Barcelona to Washington, D.C. are United Airlines and TAP AIR PORTUGAL. With an average price for the route of $754 and an overall rating of 7.4, United Airlines is the most popular choice. TAP AIR PORTUGAL is also a great choice for the route, with an average price of $567 and an overall rating of 7.1.

  • 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 $725 or less one-way and $751 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 3 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.
7.4
United AirlinesOverall score based on 9427 reviews
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

6.0 GoodOlga, Mar 2026
FRA - IAD
Read more United Airlines reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The crew was great. There was a big guy sitting next to me who was hanging over my side of the armrest the entire time. Maybe some information about "Be considerate of your neighbors, this is tight space, be kind". The breakfast sandwich was not appealing at all.

No difference between business class and normal same seat everything same, waste of money

Kayak let me choose these flights on TAP but then after 2 months, cancelled my flights because they didn't think 90 minutes was enough time for the connection. I notice that neither flight was actually cancelled. Just my reservation. Why let me go through all of that effort to find the right flights for us, only to cancel it from underneath us 2 months later leaving us scrambling to find an alternative?

They allowed me to book the flight, which took quite an effort to find the best option for us, and then 2 months later, cancelled it because they didn't think 90 minutes was enough time to get between connections. Why let me book the flight in the first place? I am somewhat disappointed in Kayak and will be choosing other options in the future

It was a good experience overall. We were however delayed by over 3 hours due to a security issue with one of the passengers inadvertently leaving a power bank in a luggage she was using as carrying on but then had to be moved int check in due to spacing issues. The airline staff had requested that she checked her bags in, but should have reminded her about removing all hazardous material like her power bank. When she eventually remembered as we were on the plane, we had to turn back and go through security all over again. Hence delaying our takeoff. The incident could have been prevented if staff reminded these passengers to remove their power banks.

Delayed departure Madrid to Lisboa and my luggage no arrived

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

I was disappointed of the crew, not friendly and attentive. Delay one way for fuel leakage and the plane is so hot. Not that great all around but I’m glad I experienced it so now know better.

Flew Business class and did not like anything, flight attendants were rude and not helpful. Food was of poor quality and I did not eat meals.

I like the price. I dislike the website where I wanted to ask questions about the unusual high prices of the luggage fees. I called the toll free number from the United States and I cannot get through. You should test your own toll free website for info and you will know what I am writing about.

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

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

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

Information on your arrival and departure airports