Cheapest return flights from Chicago to Brussels in May from $592

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

04 May - 13 May Icelandair
07 May - 13 May Scandinavian Airlines
04 May - 11 May Icelandair
14 May - 21 May Aer Lingus
12 May - 19 May Lufthansa
21 May - 11 Jun Spirit Airlines
27 May - 02 Jun Spirit Airlines
19 May - 26 May Icelandair
29 May - 09 Jun Hawaiian Airlines
16 May - 25 May SWISS
18 May - 25 May Spirit Airlines
07 May - 14 May Icelandair
09 May - 16 May jetBlue
29 May - 05 Jun Icelandair
27 May - 03 Jun Icelandair
25 May - 01 Jun Icelandair
27 May - 03 Jun United direct
29 May - 05 Jun United direct
31 May - 07 Jun United direct
29 May - 09 Jun United direct

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

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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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