Cheap Flights from Washington Dulles to Barcelona

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Flight deals from Washington Dulles to Barcelona

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Barcelona? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington Dulles to Barcelona

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Barcelona flights are currently cheapest in October.

Direct flights from Washington Dulles to Barcelona

Washington Dulles to Barcelona: Alternative routes

Compare routes from Washington Dulles to Barcelona below. You may find an airport to fly into that's cheaper, faster, or easier than Barcelona.

Washington D.C. to Barcelona: Flight information

The things to know before you go.
Cheapest flight foundR 4,060
Cheapest month to flyOctober
Average flight time8 hrs, 2 mins
Most popular airlineAir Canada
Average flights per week23

Finding cheap flights from Washington Dulles to Barcelona: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Barcelona is R 6,595. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours and 2 minutes is the average flight time from Washington Dulles to Barcelona.
Air Canada, Lufthansa and United fly direct from Washington Dulles to Barcelona.
As of July 2025, there are 23 flights per week flying from Washington Dulles to Barcelona.
The cheapest month to fly from Washington Dulles to Barcelona is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Barcelona Airport on Wednesday, 20 August 2025.
Yes – the average flight time is 8 hours and 2 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Barcelona but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Barcelona is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, TAP Air Portugal and United offer the cheapest flight tickets to Barcelona.

Flying from Washington Dulles International Airport (IAD) to Barcelona-El Prat Airport (BCN): what you need to know

  • Around 8 hours 5 minutes is how long you can expect to be in the air on a direct flight from Washington Dulles International Airport to Barcelona-El Prat Airport.

  • Barcelona's timezone is UTC+1, which makes Barcelona five hours ahead of Washington DC.

  • Each week, there are eight Washington Dulles International Airport to Barcelona-El Prat Airport flights. To jet off early, opt for the 18:10 United Airlines flight. If you'd rather make the most of your time before you fly, the last departure is at 19:15 with United Airlines.

  • Arrive at the airport on time so you don't miss your IAD to BCN flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • You can expect longer lines during popular months such as April. Arriving up to four hours in advance for international flights and two hours for domestic departures is a good idea.

  • Getting to Barcelona (and then discovering more of Spain!) is a breeze with United Airlines. This popular carrier offers direct flights from Washington Dulles International Airport to Barcelona-El Prat Airport.

  • The airline that serves the most passengers on this route is United Airlines.

  • United Airlines is the most punctual carrier operating IAD to BCN flights. An impressive 82.61% of its services on this route arrive as planned.

  • Consider adding a stopover when booking your ticket from Washington Dulles International Airport to Barcelona-El Prat Airport. Just deselect 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here's where you can stop between IAD and BCN:

    • Montreal-Pierre Elliott Trudeau International Airport

    • London Heathrow Airport

    • Adolfo Suarez Madrid-Barajas Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Barcelona-El Prat Airport (BCN)

  • R 4,048 is the best price for a one-way Washington Dulles International Airport to Barcelona-El Prat Airport flight. Return flights start from R 6,595. These fares can change based on availability and demand.

  • Book two months before your departure date. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from IAD to BCN.

  • January is the cheapest month for flights from Washington Dulles International Airport to Barcelona-El Prat Airport. If you need to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares for each month.

  • You won't have to check back in every day to see if fares have dropped when you set up a Price Alert. We'll send you an update the moment there's a new deal on cheap flights from IAD to BCN.

  • Discover the perfect flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Washington Dulles International Airport to Barcelona-El Prat Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and journey duration.

Handy information about Washington Dulles International Airport (IAD)

  • IAD's address is 1 Saarinen Circle.

  • When it comes to the on-time performance of Washington Dulles International Airport, 74.39% of flights stick to their scheduled arrival time.

  • Washington Dulles International Airport is around 56 kilometres from central Washington DC. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 50 minutes or so to arrive, depending on the traffic.

  • Taking public transport? You can expect a journey time of around 3 hours 25 minutes.

  • Get your travels off to a relaxed start by staying near IAD. Whether you have an early flight from Washington Dulles International Airport to Barcelona-El Prat Airport or just don't want to be rushed, these hotels have you covered:

Arriving at Barcelona-El Prat Airport (BCN)

Getting from Barcelona-El Prat Airport (BCN) to central Barcelona

  • From Barcelona-El Prat Airport, Barcelona is approximately 18 kilometres away. It takes around 25 minutes to reach the centre driving.

  • Getting to the centre by public transport takes roughly 35 minutes.

When to fly to Barcelona-El Prat Airport (BCN)

  • It's time to work out your trip dates for your flight from Washington Dulles International Airport to Barcelona-El Prat Airport. July is the busiest month to visit Barcelona. If you'd like a quieter vibe, go in January.

  • The warmest month in Barcelona is August, with temperatures ranging between 20ºC (68ºF) and 31ºC (88ºF). Lock in your flights from Washington Dulles International Airport to Barcelona-El Prat Airport in this month if you enjoy this type of weather.

  • Look for cheap tickets from IAD to BCN in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 14ºC (57ºF) on average.

Explore more of Spain

  • You've done Barcelona, now it's time to discover other corners of Spain. Journey around 257 kilometres west to Zaragoza to check off its leading sights. From Puente de Piedra to Museo Pablo Gargallo and El Tubo, there's plenty to keep you on the go.

  • Logroño is another standout destination in Spain and is around 402 kilometres west of Barcelona. No journey is complete without a visit to Concatedral de Santa Maria de la Redonda, Museo de la Rioja and Iglesia de Santiago el Real.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.