AirHint found the following cheapest return flights from New York (JFK) to Belgrade (BEG) in September 2025 (see full year).

Return flights

10 Sep - 18 Sep	SWISS
03 Sep - 18 Sep	SWISS
09 Sep - 26 Sep	SWISS
09 Sep - 17 Sep	SWISS
30 Sep - 15 Oct	SWISS
12 Sep - 19 Sep	SWISS
12 Sep - 23 Sep	SWISS
06 Sep - 16 Sep	SWISS
05 Sep - 16 Sep	SWISS
27 Sep - 08 Oct	Norse Atlantic Airways (UK)
25 Sep - 01 Oct	Norse Atlantic Airways (UK)
07 Sep - 14 Sep	LOT
18 Sep - 01 Oct	SWISS
19 Sep - 01 Oct	SWISS
03 Sep - 07 Sep	SWISS
29 Sep - 11 Oct	Norse Atlantic Airways
26 Sep - 08 Oct	SWISS
28 Sep - 05 Oct	SWISS
30 Sep - 12 Oct	Norse Atlantic Airways (UK)
26 Sep - 12 Oct	Norse Atlantic Airways (UK)

Also check the deals for one-way flights from New York to Belgrade in September.

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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Cheapest return flights from New York to Belgrade in September from 345€

Return flights