Cheapest return flights from Chicago to Belgrade in May from $661

AirHint found the following cheapest return flights from Chicago (ORD) to Belgrade (BEG) in May 2026 (see full year).

Return flights

15 May - 29 May Turkish Airlines
09 May - 25 May Turkish Airlines
20 May - 03 Jun Spirit Airlines
08 May - 30 May Lufthansa
18 May - 01 Jun LOT
25 May - 08 Jun Austrian Airlines
09 May - 25 May Air Serbia direct
25 May - 08 Jun jetBlue direct
20 May - 03 Jun Air Serbia direct

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

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