Cheap flights from Brussels to Washington, D.C. from €398

The month of November is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Brussels, with most prices found around €552. If you aren’t able to travel during the month of November, then book flights to Washington, D.C. Dulles Intl Airport from Brussels during March instead. Flights to Washington, D.C. Dulles Intl Airport in March, while not as cheap as those in November, still average around €555.

According to our data, Saturday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Brussels. The lowest ticket price found for a Saturday departure recently was €486. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is €753.

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 €649 when searching weeks before you fly. 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 €555 on momondo.

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 134 minutes.

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

Tuesday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of September 2026, there are 7 flights per day flying from Brussels to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 12:00, with 80% of flights taking off in the afternoon.

As of September 2026, 52 flights take off from Brussels and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.