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

Return flights

08 Sep - 11 Sep	Thai AirAsia
05 Sep - 11 Sep	Thai AirAsia
05 Sep - 09 Sep	Thai AirAsia
03 Sep - 11 Sep	Thai AirAsia
03 Sep - 09 Sep	Thai AirAsia
08 Sep - 29 Sep	Thai AirAsia
15 Sep - 29 Sep	Thai AirAsia
05 Sep - 08 Sep	Thai AirAsia
03 Sep - 08 Sep	Thai AirAsia
10 Sep - 29 Sep	Thai AirAsia
15 Sep - 01 Oct	Thai AirAsia
10 Sep - 01 Oct	Thai AirAsia
11 Sep - 01 Oct	Thai AirAsia
28 Sep - 01 Oct	Thai AirAsia
28 Sep - 07 Oct	Thai AirAsia
14 Sep - 01 Oct	Thai AirAsia
20 Sep - 01 Oct	Thai AirAsia
20 Sep - 07 Oct	Thai AirAsia
28 Sep - 10 Oct	Thai AirAsia
28 Sep - 11 Oct	Thai AirAsia

Also check the deals for one-way flights from Phnom-penh to Osaka 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 Phnom-penh to Osaka in September from $298

Return flights