Cheap flights from Barcelona to Washington, D.C. from $366

In general, February is the cheapest month to fly from Barcelona to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $463. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $603.

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $778. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Barcelona to Washington, D.C. Dulles Intl Airport for around $1,070.

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Barcelona when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $690 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Barcelona for as low as $536 on momondo.

TAP AIR PORTUGAL is the most popular carrier operating from Barcelona to Washington, D.C. Dulles Intl

United Airlines, Lufthansa and TAP AIR PORTUGAL are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Barcelona according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% 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 179 minutes.

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

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday 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 16% of their flights experiencing any sort of delay.

3 flights are operational daily from Barcelona to Washington, D.C. Dulles Intl Airport as of March 2026. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.

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