AirHint found the following cheapest return flights from Phnom-penh (PNH) to Seoul (ICN) in October 2025 (see full year).

Return flights

16 Oct - 20 Oct	Shenzhen Airlines
29 Oct - 02 Nov	Shenzhen Airlines
20 Oct - 28 Oct	Thai AirAsia
20 Oct - 24 Oct	Thai AirAsia
20 Oct - 31 Oct	Thai AirAsia
19 Oct - 28 Oct	Thai AirAsia
19 Oct - 24 Oct	Thai AirAsia
19 Oct - 31 Oct	Thai AirAsia
18 Oct - 28 Oct	Thai AirAsia
18 Oct - 31 Oct	Thai AirAsia
20 Oct - 23 Oct	Thai AirAsia
31 Oct - 20 Nov	Thai AirAsia
26 Oct - 13 Nov	Thai AirAsia
26 Oct - 14 Nov	Thai AirAsia
31 Oct - 13 Nov	Thai AirAsia
28 Oct - 13 Nov	Thai AirAsia
28 Oct - 14 Nov	Thai AirAsia
20 Oct - 02 Nov	Thai AirAsia
19 Oct - 02 Nov	Thai AirAsia
18 Oct - 02 Nov	Thai AirAsia

Also check the deals for one-way flights from Phnom-penh to Seoul in October.

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 Phnom-penh to Seoul in October from $300

Return flights