Cheap flights from Washington, D.C. to Barcelona from $345

The month of January is, on average, the cheapest month to fly to Barcelona from Washington, D.C., with most prices found around $127. If you don’t want to visit Barcelona in January, then you should wait until April to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $129.

The cheapest day to depart from Washington, D.C. to Barcelona is on a Monday when prices can be found for as low as $745. On the other hand, Saturday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,137.

In the evening is the cheapest time of day to fly from Washington, D.C. to Barcelona when you can find flight prices for as low as $884. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $941 on average. Flights to Barcelona from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Barcelona from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $774 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from Washington, D.C. for as low as $709 on momondo.

JetBlue, TAP AIR PORTUGAL, and Avianca are the most popular carriers operating from Washington, D.C. to Barcelona

United Airlines, TAP AIR PORTUGAL and British Airways are the top three most popular airlines that fly to Barcelona from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Barcelona. Keep in mind that there are 15 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

As of April 2026, 1 flights take off from Washington, D.C. and land in Barcelona each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

As of April 2026, there are 9 flights per week flying from Washington, D.C. to Barcelona. The most common day of the week flights depart is Mon, with 33% of flights taking off on this day.