Cheapest return flights from Chicago to Belgrade in October from 556€

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

Return flights

23 Oct - 15 Nov TAP
26 Oct - 15 Nov TAP
22 Oct - 15 Nov Frontier Airlines
18 Oct - 08 Nov KLM
21 Oct - 28 Oct Lufthansa
20 Oct - 27 Oct Lufthansa
18 Oct - 25 Oct Spirit Airlines
18 Oct - 25 Oct Air Serbia direct

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

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