Fly nonstop from Washington DC to Brussels for $443 round-trip on United.
Seen below, we found seats departing IAD on Wednesday, March 15, returning from BRU on Wednesday, March 22.
Other dates are also available for departures through March.
For booking info, see our fare details.
Need a room in Brussels? Here's a look at what's available for the above dates on Hotelwatchdog.