AirHint found the following cheapest return flights from Seoul (GMP) to Milano (MXP) in September 2025 (see full year).

Return flights

29 Sep - 03 Oct	Eastar Jet
24 Sep - 01 Oct	Jeju Air
28 Sep - 02 Oct	Air China
25 Sep - 29 Sep	Air China
25 Sep - 02 Oct	Air China
24 Sep - 02 Oct	Air China
29 Sep - 14 Oct	Air China
28 Sep - 14 Oct	Air China
28 Sep - 15 Oct	Air China
29 Sep - 04 Oct	Japan Airlines
28 Sep - 04 Oct	Japan Airlines
25 Sep - 30 Sep	Air China
25 Sep - 28 Sep	Air China
24 Sep - 28 Sep	Air China
26 Sep - 28 Sep	Air China

Also check the deals for one-way flights from Seoul to Milano 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 Milano in September from 698€

Return flights