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

Return flights

10 Dec - 14 Dec	Ryanair
12 Dec - 15 Dec	Air Serbia
27 Dec - 29 Dec	Ryanair
08 Dec - 12 Dec	Air Serbia
12 Dec - 15 Dec	Air Serbia	direct
11 Dec - 15 Dec	Air Serbia	direct
02 Dec - 05 Dec	Air Serbia	direct
08 Dec - 12 Dec	Air Serbia	direct
05 Dec - 09 Dec	Air Serbia	direct
04 Dec - 08 Dec	Air Serbia	direct
29 Dec - 02 Jan	Air Serbia	direct
31 Dec - 02 Jan	Air Serbia	direct
30 Dec - 04 Jan	Air Serbia	direct
30 Dec - 03 Jan	Air Serbia	direct
20 Dec - 10 Jan	Air Serbia	direct

Also check the deals for one-way flights from Thessaloniki 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 Thessaloniki to Belgrade in December from 132€

Return flights