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

Return flights

03 Dec - 10 Dec	SKY express
18 Dec - 22 Dec	Ryanair
19 Dec - 21 Dec	Ryanair
02 Dec - 06 Dec	Ryanair
12 Dec - 17 Dec	Ryanair
15 Dec - 19 Dec	Ryanair
11 Dec - 14 Dec	SKY express
01 Dec - 06 Dec	SKY express
08 Dec - 11 Dec	Wizz Air
05 Dec - 08 Dec	Wizz Air
27 Dec - 01 Jan	Air Serbia	direct
31 Dec - 07 Jan	Ryanair
31 Dec - 07 Jan	Air Serbia	direct
31 Dec - 04 Jan	Wizz Air
29 Dec - 03 Jan	Air Serbia	direct
30 Dec - 04 Jan	Air Serbia	direct
28 Dec - 02 Jan	Aegean Airlines	direct
26 Dec - 02 Jan	Wizz Air
26 Dec - 02 Jan	Air Serbia	direct
30 Dec - 03 Jan	Air Serbia	direct

Also check the deals for one-way flights from Athens 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 Athens to Belgrade in December from 105€

Return flights