Cheapest return flights from Chicago to Belgrade in December from $753

AirHint found the following cheapest return flights from Chicago (MDW) to Belgrade (BEG) in December 2025 (see full year).

Return flights

14 Dec - 11 Jan Frontier Airlines
01 Dec - 14 Jan Delta
13 Dec - 11 Jan Frontier Airlines
11 Dec - 10 Jan Frontier Airlines
16 Dec - 08 Jan Frontier Airlines
30 Dec - 13 Jan Delta
11 Dec - 09 Jan Frontier Airlines
30 Dec - 08 Jan Frontier Airlines
20 Dec - 17 Jan Frontier Airlines
20 Dec - 23 Jan Frontier Airlines
14 Dec - 24 Dec Delta
20 Dec - 27 Dec Porter Airlines (Canada) Ltd
19 Dec - 27 Dec WestJet
19 Dec - 28 Dec Delta

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

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