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

Return flights

04 Dec - 13 Dec	Wizz Air Malta
04 Dec - 15 Dec	Wizz Air Malta
06 Dec - 15 Dec	Wizz Air Malta
01 Dec - 14 Dec	Ryanair
02 Dec - 09 Dec	Ryanair
01 Dec - 12 Dec	Ryanair
11 Dec - 26 Dec	Wizz Air Malta
07 Dec - 22 Dec	Wizz Air Malta
04 Dec - 11 Dec	Wizz Air Malta
11 Dec - 18 Dec	Wizz Air Malta
08 Dec - 01 Jan	Animawings
13 Dec - 06 Jan	Wizz Air Malta
11 Dec - 04 Jan	Wizz Air Malta
18 Dec - 05 Jan	Pegasus Airlines
18 Dec - 06 Jan	Pegasus Airlines
31 Dec - 08 Jan	KLM
26 Dec - 12 Jan	Wizz Air Malta
16 Dec - 04 Jan	Wizz Air Malta
26 Dec - 06 Jan	Ryanair
17 Dec - 05 Jan	Pegasus Airlines

Also check the deals for one-way flights from Bucharest to Seoul 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 Seoul in December from $544

Return flights