Cheapest one-way flights from Chicago to Belgrade in December from 225€

AirHint found the following cheapest one-way flights from Chicago (ORD) to Belgrade (BEG) in December 2025 (see full year).

One-Way flights

06 Dec Spirit Airlines
03 Dec Frontier Airlines
10 Dec Icelandair
05 Dec WestJet
11 Dec Spirit Airlines
31 Dec Icelandair
13 Dec Frontier Airlines
28 Dec Frontier Airlines
15 Dec Spirit Airlines
29 Dec Austrian Airlines

Also check the deals for return flights from Chicago to Belgrade in December.

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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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