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

Return flights

02 Dec - 16 Dec	Turkish Airlines
03 Dec - 14 Dec	Wizz Air Malta
12 Dec - 11 Jan	Pegasus Airlines
03 Dec - 12 Dec	Turkish Airlines
11 Dec - 18 Dec	TAROM
08 Dec - 08 Jan	TAROM
13 Dec - 31 Dec	TAROM
02 Dec - 15 Dec	Turkish Airlines
15 Dec - 30 Dec	TAROM
02 Dec - 05 Dec	Wizz Air Malta
13 Dec - 10 Jan	TAROM
30 Dec - 13 Jan	TAROM
13 Dec - 30 Dec	TAROM
25 Dec - 11 Jan	Wizz Air
16 Dec - 09 Jan	HiSky Europe
12 Dec - 09 Jan	Pegasus Airlines
14 Dec - 01 Jan	Wizz Air Malta
22 Dec - 12 Jan	Pegasus Airlines
18 Dec - 10 Jan	TAROM
19 Dec - 26 Dec	TAROM

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 549€

Return flights