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

Return flights

12 Dec - 27 Dec	Ryanair
12 Dec - 23 Jan	Ryanair
02 Dec - 04 Dec	Ryanair
31 Dec - 15 Jan	Pegasus Airlines
09 Dec - 22 Dec	Ryanair
30 Dec - 14 Jan	Wizz Air Malta
30 Dec - 19 Jan	Wizz Air Malta
27 Dec - 17 Jan	Wizz Air Malta
27 Dec - 14 Jan	Wizz Air Malta
09 Dec - 23 Dec	Ryanair
22 Dec - 13 Jan	Ryanair
29 Dec - 15 Jan	Wizz Air Malta
26 Dec - 17 Jan	Wizz Air Malta
09 Dec - 09 Jan	Ryanair
14 Dec - 21 Dec	Wizz Air
01 Dec - 13 Dec	Ryanair
01 Dec - 14 Dec	Ryanair
20 Dec - 27 Dec	Pegasus Airlines
10 Dec - 20 Dec	Pegasus Airlines
13 Dec - 20 Dec	Wizz Air Malta

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 $724

Return flights