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

Return flights

11 Dec - 14 Dec	Delta
01 Dec - 22 Dec	Delta
01 Dec - 27 Dec	United
11 Dec - 31 Dec	Delta
07 Dec - 23 Dec	United
27 Dec - 11 Jan	Delta
20 Dec - 10 Jan	Spirit Airlines
16 Dec - 01 Jan	Delta
19 Dec - 02 Jan	Spirit Airlines
12 Dec - 04 Jan	Porter Airlines (Canada) Ltd
19 Dec - 10 Jan	Porter Airlines (Canada) Ltd
21 Dec - 05 Jan	Delta
18 Dec - 05 Jan	Delta
21 Dec - 28 Dec	Delta
14 Dec - 04 Jan	Delta
14 Dec - 03 Jan	Delta
20 Dec - 27 Dec	United

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

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 December from 611€

Return flights