Cheap flights from Barcelona-El Prat Airport to Washington, D.C. from $333

The month of February is, on average, the cheapest month to fly to Washington, D.C. from Barcelona-El Prat Airport, with most prices found around $608. If you’re not able to fly to Washington, D.C. in February, then October is your next best option. Flight prices from Barcelona-El Prat Airport to Washington, D.C. during October average around $633.

On average, the least expensive day to fly to Washington, D.C. from Barcelona-El Prat Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $847. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Barcelona-El Prat Airport to Washington, D.C. for around $950.

Fly from Barcelona-El Prat to Washington, D.C. Dulles Intl for the best Barcelona-El Prat - Washington, D.C. flight prices

You are more likely to see cheaper flights to Washington, D.C. from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $780 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Barcelona-El Prat Airport for as low as $624 on momondo.

There are 3 cabin classes available to choose from on Barcelona-El Prat Airport to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 1% on your flight if you consider stops on a Barcelona-El Prat Airport to Washington, D.C. flight.

TAP AIR PORTUGAL, Royal Air Maroc, and British Airways are the most popular carriers operating from Barcelona-El Prat to Washington, D.C.

Lufthansa, United Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Washington, D.C. from Barcelona-El Prat Airport according to our data. Lufthansa is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Barcelona and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 201 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Lisbon (LIS) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Lisbon (LIS) offer the lowest average round-trip price of $568.

Flights connecting via Casablanca (CMN) have the shortest average one-way travel time: 11h 15m.

Rome (FCO) has the shortest average layover time for this route: 2h 00m.

As of October 2026, 3 flights take off from Barcelona-El Prat Airport and land in Washington, D.C. each day. The most common flight departure time for this route is 11:00AM, with 100% of daily flights taking off at noon.

21 flights are operational weekly from Barcelona-El Prat Airport to Washington, D.C. as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.