Cheapest return flights from Chicago to Brussels in May from $516

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

Return flights

02 May - 09 May TAP
07 May - 14 May Icelandair
11 May - 23 May Icelandair
11 May - 25 May Scandinavian Airlines
20 May - 25 May Scandinavian Airlines
11 May - 23 May SWISS direct
27 May - 03 Jun Icelandair
02 May - 09 May Brussels Airlines direct

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

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