Cheapest return flights from Seoul to Phnom-penh in September from $251

Best time to book flights for Seoul (ICN) to Phnom-penh (PNH) flights at AirHint

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

Return flights

06 Sep - 10 Sep Vietnam Airlines
04 Sep - 07 Sep Vietnam Airlines
18 Sep - 22 Sep Vietnam Airlines
21 Sep - 26 Sep Vietnam Airlines
07 Sep - 11 Sep Vietnam Airlines
05 Sep - 09 Sep Vietnam Airlines
06 Sep - 10 Sep Korean Air direct
07 Sep - 11 Sep Korean Air direct
04 Sep - 07 Sep Korean Air direct
18 Sep - 22 Sep Asiana Airlines direct
30 Sep - 13 Oct Asiana Airlines direct
30 Sep - 12 Oct Asiana Airlines direct
30 Sep - 09 Oct Asiana Airlines direct
30 Sep - 10 Oct Asiana Airlines direct
27 Sep - 12 Oct Philippine Airlines
30 Sep - 11 Oct Asiana Airlines direct
27 Sep - 12 Oct Korean Air direct
29 Sep - 11 Oct Asiana Airlines direct
27 Sep - 11 Oct Korean Air direct
24 Sep - 12 Oct AirAsia X

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

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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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