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

Return flights

04 Dec - 15 Dec	Pegasus Airlines
04 Dec - 14 Dec	Air Serbia
05 Dec - 14 Dec	Wizz Air
07 Dec - 17 Dec	Wizz Air
03 Dec - 16 Dec	Lufthansa
30 Dec - 16 Jan	Turkish Airlines
05 Dec - 12 Dec	Air Serbia
27 Dec - 18 Jan	Air Serbia
09 Dec - 23 Dec	Qatar Airways
06 Dec - 27 Dec	Air France
31 Dec - 12 Jan	Turkish Airlines
31 Dec - 15 Jan	Turkish Airlines
24 Dec - 30 Dec	Turkish Airlines
31 Dec - 11 Jan	Turkish Airlines
30 Dec - 08 Jan	Wizz Air
30 Dec - 14 Jan	Air France
30 Dec - 15 Jan	Air France
19 Dec - 09 Jan	Air Serbia
18 Dec - 03 Jan	Wizz Air

Also check the deals for one-way flights from Belgrade to Bangkok 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 Belgrade to Bangkok in December from 546€

Return flights