Cheapest return flights from Chicago to Brussels in May from $531

Best time to book flights for Chicago (ORD) to Brussels (BRU) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Brussels (BRU) in May 2025 (see full year).

Return flights

07 May - 14 May Icelandair
03 May - 14 May Icelandair
27 May - 01 Jun Icelandair
01 May - 08 May Icelandair
15 May - 22 May Icelandair
13 May - 27 May Air Canada
13 May - 27 May United direct
09 May - 16 May Icelandair
31 May - 18 Jun Spirit Airlines
16 May - 23 May United direct
03 May - 14 May United direct
09 May - 16 May United direct
27 May - 03 Jun Icelandair
30 May - 06 Jun Icelandair
27 May - 03 Jun United direct
27 May - 01 Jun United direct
31 May - 18 Jun United direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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