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

Return flights

10 Dec - 12 Dec	Air Serbia	direct
10 Dec - 19 Dec	Air Serbia	direct
10 Dec - 14 Dec	Air Serbia	direct
08 Dec - 14 Dec	Air Serbia	direct
15 Dec - 21 Dec	Austrian Airlines
13 Dec - 18 Dec	SWISS
13 Dec - 17 Dec	SWISS
15 Dec - 19 Dec	Austrian Airlines
31 Dec - 08 Jan	Wizz Air
11 Dec - 18 Dec	Austrian Airlines
08 Dec - 12 Dec	Air Serbia	direct
31 Dec - 10 Jan	Wizz Air
23 Dec - 08 Jan	Eurowings
26 Dec - 09 Jan	Eurowings
26 Dec - 11 Jan	Eurowings
24 Dec - 07 Jan	Eurowings
21 Dec - 11 Jan	Eurowings
30 Dec - 08 Jan	SWISS
07 Dec - 14 Jan	Air Serbia	direct
31 Dec - 02 Jan	Air Serbia	direct

Also check the deals for one-way flights from Stuttgart 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 Stuttgart to Belgrade in December from $231

Return flights