Cheap flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport
BCN — IAD
18 Sep — 25 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Barcelona-El Prat to Washington, D.C. Dulles Intl are usually found in February or January, booked 71 days in advance, depart on a Tuesday or Monday and return on a Monday
Find flight deals from Barcelona-El Prat to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2026.
Popular in
July
Cheapest in
February
Average price
£649
Highest demand for flights based on searches. 8% potential increase in price (£41 potential increase over avg. return price).
Best time to book a flight from Barcelona-El Prat to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Barcelona-El Prat with our price prediction graph.
BCN-IAD
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?
The price you pay for your flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport (average of £449). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £686). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BCN to IAD?
Find hourly flight availability from Barcelona-El Prat to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2026.
When flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport
Explore weekly flight availability from Barcelona-El Prat to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 August 2026.
The most flights from BCN to IAD are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
How often are flights from Barcelona to Washington, D.C. delayed?
About 18% of weekly flights between Barcelona and Washington, D.C. have experienced delays in the past year, with the average delay time being 210 minutes.
What is the most punctual flight time for Barcelona to Washington, D.C. flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Barcelona to Washington, D.C. flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Barcelona-El Prat to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What are the most reliable airlines from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport on time: Air Canada (80%), United Airlines (80%), Lufthansa (80%).
Can I find deals for flights from Barcelona-El Prat to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Barcelona-El Prat to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Barcelona-El Prat to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Barcelona-El Prat to Dulles Intl.
Can I find deals for business class flights from Barcelona-El Prat to Dulles Intl?
Yes. Cheapflights offers flight deals from Barcelona-El Prat to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport (average of £449). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £686). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 August 2026.
Browse through other flights departing from Barcelona-El Prat. Flights are based on user searches made on Cheapflights and were last updated on 19 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Barcelona-El Prat to Dulles Intl?
Deals for Barcelona-El Prat to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Barcelona-El Prat to Dulles Intl?
Cheapflights simply makes it quick and affordable to book flights from Barcelona-El Prat to Dulles Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Barcelona-El Prat to Dulles Intl with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Barcelona-El Prat to Dulles Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Barcelona-El Prat to Dulles Intl become cheaper?
Yes! Start tracking prices for Barcelona-El Prat to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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