Cheapest return flights from Washington to Brussels in September from $532

AirHint found the following cheapest return flights from Washington (DCA) to Brussels (BRU) in September 2025 (see full year).

Return flights

30 Sep - 07 Oct Scandinavian Airlines
22 Sep - 08 Oct Scandinavian Airlines
10 Sep - 24 Sep Air Canada
05 Sep - 14 Sep Scandinavian Airlines
01 Sep - 07 Sep British Airways
19 Sep - 24 Sep Scandinavian Airlines

Also check the deals for one-way flights from Washington to Brussels in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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