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

Return flights

01 Sep - 06 Sep	Scoot Tigerair
05 Sep - 14 Sep	VietJet Air
12 Sep - 21 Sep	VietJet Air
23 Sep - 30 Sep	Jin Air
10 Sep - 14 Sep	VietJet Air
17 Sep - 21 Sep	VietJet Air
10 Sep - 18 Sep	VietJet Air
11 Sep - 14 Sep	VietJet Air
01 Sep - 14 Sep	Scoot Tigerair
08 Sep - 18 Sep	VietJet Air
22 Sep - 03 Oct	VietJet Air
26 Sep - 04 Oct	VietJet Air
26 Sep - 05 Oct	VietJet Air
27 Sep - 04 Oct	Cebu Pacific
27 Sep - 05 Oct	VietJet Air
28 Sep - 11 Oct	T'way Air
24 Sep - 02 Oct	VietJet Air
28 Sep - 05 Oct	T'way Air
27 Sep - 11 Oct	Cebu Pacific
26 Sep - 10 Oct	VietJet Air

Also check the deals for one-way flights from Seoul to Plaisance in September.

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 September from $735

Return flights