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

Return flights

02 Dec - 16 Dec	TAP
30 Dec - 15 Jan	Lufthansa
11 Dec - 11 Jan	SWISS
03 Dec - 17 Dec	Lufthansa
13 Dec - 12 Jan	Austrian Airlines
12 Dec - 11 Jan	Austrian Airlines
12 Dec - 12 Jan	Austrian Airlines
15 Dec - 12 Jan	Lufthansa
14 Dec - 12 Jan	Lufthansa
16 Dec - 12 Jan	Austrian Airlines
16 Dec - 10 Jan	Austrian Airlines
16 Dec - 30 Dec	Austrian Airlines
17 Dec - 11 Jan	SWISS

Also check the deals for one-way flights from Newark 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 Newark to Belgrade in December from 442€

Return flights