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

Return flights

02 Dec - 16 Dec	Air Serbia
06 Dec - 16 Dec	easyJet
05 Dec - 15 Dec	KLM
04 Dec - 07 Dec	KLM
05 Dec - 20 Dec	KLM
02 Dec - 22 Dec	Turkish Airlines
08 Dec - 27 Dec	Turkish Airlines
03 Dec - 17 Dec	Turkish Airlines
01 Dec - 17 Dec	easyJet
29 Dec - 19 Jan	Turkish Airlines
10 Dec - 27 Dec	Turkish Airlines
31 Dec - 11 Jan	Air Serbia
27 Dec - 18 Jan	Wizz Air
14 Dec - 14 Jan	Air Serbia
22 Dec - 10 Jan	Air Serbia
22 Dec - 06 Jan	Air Serbia
15 Dec - 14 Jan	Air Serbia
12 Dec - 15 Jan	Turkish Airlines
23 Dec - 09 Jan	Air Serbia
29 Dec - 13 Jan	Turkish Airlines

Also check the deals for one-way flights from Ljubljana 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 Ljubljana to Bangkok in December from $719

Return flights