AirHint found the following cheapest return flights from Bucharest (OTP) to Bangkok (DMK) in December 2025 (see full year).

Return flights

02 Dec - 10 Dec	Wizz Air Malta
01 Dec - 07 Dec	Animawings
08 Dec - 23 Dec	Animawings
15 Dec - 12 Jan	TAROM
01 Dec - 19 Dec	Animawings
05 Dec - 15 Jan	Ryanair
16 Dec - 12 Jan	TAROM
14 Dec - 07 Jan	TAROM
01 Dec - 05 Dec	Ryanair
16 Dec - 07 Jan	TAROM
07 Dec - 14 Dec	Pegasus Airlines
18 Dec - 13 Jan	Wizz Air Malta
23 Dec - 14 Jan	Ryanair
08 Dec - 08 Jan	Pegasus Airlines
13 Dec - 10 Jan	TAROM
12 Dec - 08 Jan	Pegasus Airlines
01 Dec - 15 Dec	Austrian Airlines
15 Dec - 29 Dec	Austrian Airlines
09 Dec - 22 Dec	TAROM
03 Dec - 14 Dec	flydubai

Also check the deals for one-way flights from Bucharest 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 Bucharest to Bangkok in December from 518€

Return flights