AirHint found the following cheapest return flights from Newark (EWR) to Belgrade (BEG) in August 2025 (see full year).

Return flights

18 Aug - 04 Sep	SWISS
25 Aug - 10 Sep	SWISS
17 Aug - 03 Sep	United
05 Aug - 12 Aug	Delta
27 Aug - 11 Sep	SWISS
20 Aug - 11 Sep	Austrian Airlines
12 Aug - 19 Aug	Delta
22 Aug - 02 Sep	Delta
30 Aug - 20 Sep	Austrian Airlines
11 Aug - 30 Aug	Delta
06 Aug - 18 Aug	Delta
17 Aug - 24 Aug	TAP
22 Aug - 20 Sep	Delta
30 Aug - 27 Sep	Delta
08 Aug - 20 Aug	Delta
29 Aug - 20 Sep	Austrian Airlines
09 Aug - 21 Aug	Delta
15 Aug - 29 Aug	Austrian Airlines
01 Aug - 24 Aug	FrenchBee
01 Aug - 23 Aug	FrenchBee

Also check the deals for one-way flights from Newark to Belgrade in August.

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 Newark to Belgrade in August from 349€

Return flights