Cheapest return IAD–BRU flights, May

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

Return flights

25 May - 01 Jun Porter Airlines (Canada) Ltd
11 May - 19 May Lufthansa
17 May - 26 May Lufthansa
08 May - 27 May TAP
13 May - 17 May Icelandair
09 May - 14 May Scandinavian Airlines
05 May - 10 May Scandinavian Airlines
06 May - 09 May TAP
20 May - 25 May Austrian Airlines
22 May - 31 May Porter Airlines (Canada) Ltd
23 May - 07 Jun Frontier Airlines
25 May - 28 May Aer Lingus
23 May - 07 Jun Brussels Airlines direct

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

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