Cheapest return flights from Chicago to Brussels in May from 503€

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
21 May - 11 Jun Spirit Airlines
19 May - 27 May Icelandair
04 May - 11 May Icelandair
29 May - 09 Jun Icelandair
15 May - 23 Jun Icelandair
15 May - 22 May Icelandair
09 May - 16 May Icelandair
27 May - 03 Jun Icelandair
30 May - 06 Jun jetBlue
06 May - 13 May United
21 May - 28 May Icelandair
19 May - 27 May United direct
21 May - 28 May United direct
21 May - 11 Jun United direct
12 May - 19 May United
27 May - 03 Jun United direct
30 May - 06 Jun United direct
29 May - 09 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.

Book a cheap hotel in Brussels

Cheap car rent in Brussels