Cheapest return ORD–BRU flights, September

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

Return flights

08 Sep - 15 Sep Scandinavian Airlines
09 Sep - 16 Sep Scandinavian Airlines
01 Sep - 22 Sep Aer Lingus
21 Sep - 28 Sep Aer Lingus
10 Sep - 17 Sep Scandinavian Airlines
02 Sep - 09 Sep Scandinavian Airlines
07 Sep - 14 Sep Scandinavian Airlines
14 Sep - 21 Sep Scandinavian Airlines
01 Sep - 08 Sep Scandinavian Airlines
13 Sep - 20 Sep Scandinavian Airlines

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

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