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

Return flights

01 Dec - 16 Dec	easyJet
05 Dec - 15 Dec	KLM
05 Dec - 18 Dec	KLM
05 Dec - 20 Dec	KLM
04 Dec - 07 Dec	KLM
08 Dec - 21 Dec	Turkish Airlines
06 Dec - 17 Dec	Air Serbia
01 Dec - 17 Dec	easyJet
03 Dec - 17 Dec	Turkish Airlines
03 Dec - 18 Dec	KLM
31 Dec - 13 Jan	Air Serbia
14 Dec - 18 Jan	Air Serbia
07 Dec - 16 Jan	Turkish Airlines
15 Dec - 18 Jan	Air Serbia
14 Dec - 14 Jan	Air Serbia
22 Dec - 10 Jan	Air Serbia
25 Dec - 13 Jan	Air Serbia
02 Dec - 01 Jan	Lufthansa
15 Dec - 14 Jan	Air Serbia
22 Dec - 06 Jan	Air Serbia

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 616€

Return flights