Cheap flights from Brussels to Washington, D.C. from $340

The month of February is, on average, the cheapest month to fly to Washington, D.C. from Brussels, with most prices found around $622. If you’re not able to fly to Washington, D.C. in February, then November is your next best option. Flight prices from Brussels to Washington, D.C. during November average around $628.

On average, the least expensive day to fly to Washington, D.C. from Brussels is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $822. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $946.

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

You are more likely to see cheaper flights to Washington, D.C. from Brussels when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $712 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Brussels for as low as $514 on momondo.

British Airways, Finnair, and Brussels Airlines are the most popular carriers operating from Brussels to Washington, D.C.

United Airlines, Brussels Airlines and Lufthansa are the top three most popular airlines that fly to Washington, D.C. from Brussels according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. 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 138 minutes.

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

Tuesday 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.

The number of flights available between Brussels and Washington, D.C. is 7 per day as of July 2026. The most frequent departure time is 12:00PM, with 80% of daily flights leaving in the afternoon.

The number of flights available between Brussels and Washington, D.C. is 51 per week as of July 2026. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.