Cheapest return flights from Washington to Brussels in September from 548€

AirHint found the following cheapest return flights from Washington (IAD) to Brussels (BRU) in September 2026 (see full year).

Return flights

08 Sep - 15 Sep Aer Lingus
01 Sep - 11 Sep Turkish Airlines
02 Sep - 14 Sep Aer Lingus
08 Sep - 14 Sep Aer Lingus
19 Sep - 20 Sep Scandinavian Airlines
01 Sep - 08 Sep Icelandair
11 Sep - 18 Sep Icelandair
26 Sep - 03 Oct Icelandair
06 Sep - 13 Sep Icelandair
02 Sep - 14 Sep Brussels Airlines direct
01 Sep - 11 Sep Brussels Airlines direct

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

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