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

Return flights

10 Dec - 17 Dec	SWISS
07 Dec - 14 Dec	SWISS
11 Dec - 24 Jan	Delta
30 Dec - 15 Jan	Lufthansa
30 Dec - 24 Jan	Lufthansa
09 Dec - 18 Dec	Austrian Airlines
30 Dec - 18 Jan	United
28 Dec - 24 Jan	Lufthansa
13 Dec - 12 Jan	Spirit Airlines
28 Dec - 22 Jan	Air France
12 Dec - 15 Dec	Spirit Airlines
13 Dec - 13 Jan	Spirit Airlines
12 Dec - 16 Dec	FrenchBee
12 Dec - 10 Jan	Spirit Airlines
30 Dec - 06 Jan	Icelandair
11 Dec - 18 Dec	SWISS
14 Dec - 18 Dec	Air Canada
26 Dec - 31 Dec	Lufthansa
16 Dec - 27 Dec	Austrian Airlines

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 460€

Return flights