Cheap flights from Washington, D.C. Dulles Intl Airport to Madrid from $325

The month of January is, on average, the cheapest month to fly to Madrid from Washington, D.C. Dulles Intl Airport, with most prices found around $549. If you don’t want to visit Madrid in January, then you should wait until February to fly from Washington, D.C. Dulles Intl Airport, when ticket prices are also cheap, with an average price of $562.

The cheapest day to depart on your flight to Madrid is on a Tuesday when prices can be found for as low as $763. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Madrid on Saturday is $1,002.

Flying to Madrid from Washington, D.C. Dulles Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $818 when looking at flights departing in the evening. Flights to Madrid are more costly in the afternoon, with an average ticket price of $878. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Washington, D.C. Dulles Intl to Madrid Barajas for the best Washington, D.C. Dulles Intl - Madrid Barajas flight prices

You are more likely to see cheaper flights to Madrid from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $757 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from Washington, D.C. Dulles Intl Airport for as low as $627 on momondo.

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

United Airlines, SWISS, and KLM are the most popular carriers operating from Washington, D.C. Dulles Intl to Madrid Barajas

United Airlines, Iberia and TAP AIR PORTUGAL are the top three most popular airlines that fly to Madrid from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Madrid. Keep in mind that there are 14 different airlines that fly to Madrid on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Washington, D.C. and Madrid have experienced a delay on any given week. The average delay length over the past 12 months has been 196 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Iberia have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

Lisbon (LIS) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $462.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 10h 47m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 30m.

9 flights are operational daily from Washington, D.C. Dulles Intl Airport to Madrid as of October 2026. The most popular departure time for this route is 6:00PM, with 53% of flights per day taking off in the evening.

As of October 2026, 68 flights take off from Washington, D.C. Dulles Intl Airport and land in Madrid each week. The most common flight departure day for this route is Tue, with 16% of weekly flights taking off on this day.