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

Return flights

07 Dec - 17 Dec	Wizz Air Malta
01 Dec - 13 Dec	Wizz Air Malta
08 Dec - 21 Dec	Wizz Air Malta
04 Dec - 17 Dec	Wizz Air Malta
03 Dec - 14 Dec	Austrian Airlines
08 Dec - 15 Dec	Austrian Airlines
28 Dec - 18 Jan	TAROM
08 Dec - 18 Dec	Austrian Airlines
30 Dec - 19 Jan	Wizz Air Malta
03 Dec - 09 Dec	Austrian Airlines
07 Dec - 16 Dec	Austrian Airlines
24 Dec - 15 Jan	Wizz Air Malta
06 Dec - 16 Dec	Austrian Airlines
28 Dec - 10 Jan	TAROM
08 Dec - 08 Jan	TAROM
27 Dec - 06 Jan	TAROM
18 Dec - 05 Jan	TAROM
19 Dec - 10 Jan	TAROM
22 Dec - 07 Jan	TAROM
19 Dec - 06 Jan	Ryanair

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Bucharest to Bangkok in December from 577€

Return flights