Cheapest return flights from Chicago to Brussels in December from 413€

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

Return flights

08 Dec - 16 Dec Scandinavian Airlines
08 Dec - 12 Dec Scandinavian Airlines
30 Dec - 08 Jan Aer Lingus
13 Dec - 18 Dec Aer Lingus
11 Dec - 18 Dec Icelandair
01 Dec - 27 Dec Scandinavian Airlines
26 Dec - 11 Jan Aer Lingus
17 Dec - 24 Dec jetBlue
23 Dec - 30 Dec jetBlue

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

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