Cheapest return flights from Washington to Brussels in May from $473

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

Return flights

04 May - 15 May Scandinavian Airlines
14 May - 25 May Scandinavian Airlines
19 May - 26 May Aer Lingus
15 May - 22 May Icelandair
19 May - 26 May Brussels Airlines direct
04 May - 15 May United direct
25 May - 01 Jun Icelandair

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

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