$221 Find Cheap Flights from Washington to Belgium - Compare and Save

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Belgium.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Belgium is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to Belgium with an airline and back with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to Belgium up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

There are 4 airports in Belgium. The busiest airport is Brussels Airport (BRU), with 89% of all flights arriving there.

The cheapest month for flights from Washington to Belgium is February, when tickets cost $265 (return) on average. On the other hand, the most expensive months are April and September, when the average cost of round-trip tickets is $614 and $607 respectively.

To get a below average price on the flight from Washington to Belgium, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

An average nonstop flight from Washington to Belgium takes 19h 31m, covering a distance of 5017 miles. The shortest route is Seattle (SEA) to Brussels Bruxelles-National Airport (BRU) with an average flight time of 12h 05m.