Cheapest return flights from Washington to Brussels in May from $558

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

Return flights

05 May - 10 May Icelandair
20 May - 31 May Aer Lingus
24 May - 30 May Lufthansa
19 May - 24 May Aer Lingus
29 May - 05 Jun TAP
05 May - 10 May Brussels Airlines direct
31 May - 07 Jun Icelandair
19 May - 24 May Brussels Airlines direct
26 May - 02 Jun Icelandair
29 May - 05 Jun Brussels Airlines direct
24 May - 30 May Lufthansa direct

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

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