Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. from €351

The cheapest month to fly to Washington, D.C. from Brussels Bruxelles-National Airport is in September. Flight prices, which tend to average around €483, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Washington, D.C. from Brussels Bruxelles-National Airport during May instead. Flights to Washington, D.C. in May, while not as cheap as those in September, still average around €510.

The cheapest day to depart from Brussels Bruxelles-National Airport to Washington, D.C. is on a Saturday. Travellers who choose to depart for Washington, D.C. on a Saturday will often find tickets for as low as €464. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. on Friday is €573.

You are more likely to see cheaper flights to Washington, D.C. 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. for around €557 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. from Brussels Bruxelles-National Airport for as low as €469 on momondo.

As of March 2026, prices for Brussels Bruxelles-National Airport to Washington, D.C. flights are approximately 2% cheaper when compared to flights at the same time last year.

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 139 minutes.

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

Sunday 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 12% of their flights experiencing any sort of delay.

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

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