Cheap flights from Brussels to Washington, D.C. from $383

In general, February is the cheapest month to fly from Brussels 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 $587. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $597.

Our data shows that Wednesday 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 $743. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Brussels to Washington, D.C. Dulles Intl Airport for around $862.

Fly from Brussels Bruxelles-National to Washington, D.C. Dulles Intl for the best Brussels - Washington, D.C. Dulles Intl flight prices

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Brussels 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 $645 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 Brussels for as low as $542 on momondo.

British Airways is the most popular carrier operating from Brussels to Washington, D.C. Dulles Intl

United Airlines, Brussels Airlines and Lufthansa are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Brussels according to our data. United Airlines is the first choice among our users, with 49% 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 Brussels and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

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

Sunday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday 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 11% of their flights experiencing any sort of delay.

As of March 2026, there are 6 flights per day flying from Brussels to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 11:00AM, with 100% of flights taking off at noon.

As of March 2026, there are 42 flights per week flying from Brussels to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.