Cheapest return flights from Chicago to Brussels in May from $751

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

26 May - 09 Jun Air Canada
24 May - 14 Jun Hawaiian Airlines
29 May - 12 Jun Spirit Airlines
29 May - 09 Jun Spirit Airlines
24 May - 31 May Hawaiian Airlines
23 May - 14 Jun Spirit Airlines
16 May - 23 May Spirit Airlines
18 May - 19 May Air France
29 May - 12 Jun United direct
29 May - 09 Jun United direct
18 May - 25 May United
23 May - 14 Jun United direct
24 May - 31 May Brussels Airlines direct
24 May - 14 Jun Brussels Airlines direct
16 May - 23 May Lufthansa direct
18 May - 19 May 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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