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

Return flights

08 Dec - 17 Dec	VietJet Air
01 Dec - 15 Dec	VietJet Air
01 Dec - 08 Dec	VietJet Air
08 Dec - 20 Dec	VietJet Air
03 Dec - 06 Dec	Thai AirAsia X
01 Dec - 10 Dec	VietJet Air
12 Dec - 20 Dec	Philippines AirAsia Inc.
14 Dec - 20 Dec	Philippines AirAsia Inc.
06 Dec - 15 Dec	VietJet Air
14 Dec - 21 Dec	Philippines AirAsia Inc.
13 Dec - 02 Jan	Vietnam Airlines
25 Dec - 02 Jan	Philippines AirAsia Inc.
25 Dec - 03 Jan	Philippines AirAsia Inc.
24 Dec - 02 Jan	Thai Airways
24 Dec - 03 Jan	Thai Airways
27 Dec - 03 Jan	Xiamen Airlines
29 Dec - 09 Jan	VietJet Air
28 Dec - 06 Jan	China Southern
24 Dec - 01 Jan	China Southern
28 Dec - 03 Jan	Emirates

Also check the deals for one-way flights from Seoul to Plaisance 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 Seoul to Plaisance in December from $934

Return flights