Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. from $357

In general, February is the cheapest month to fly from Brussels Bruxelles-National Airport 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 August is also cheap. Prices for this month can be found on momondo for an average of $623.

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 $759. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport for around $900.

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Brussels Bruxelles-National Airport 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 $658 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 Bruxelles-National Airport for as low as $569 on momondo.

TAP AIR PORTUGAL, Finnair, and British Airways are the most popular carriers operating from Brussels Bruxelles-National 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 Bruxelles-National Airport according to our data. United Airlines is the first choice among our users, with 52% 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 18% 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 130 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 14% of their flights experiencing any sort of delay.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $460.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 11h 30m.

Reykjavik (KEF) has the shortest average layover time for this route: 1h 19m.

As of April 2026, there are 7 flights per day flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 12:00PM, with 82% of flights taking off in the afternoon.

50 flights are operational weekly from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport as of April 2026. The most popular departure day for this route is Tue, with 16% of flights per week taking off on this day.