AirHint found the following cheapest return flights from Sihanoukville (KOS) to Ho Chi Minh City (SGN) in September 2025 (see full year).

Return flights

21 Sep - 28 Sep	Air Cambodia
28 Sep - 08 Oct	AirAsia
28 Sep - 04 Oct	AirAsia
28 Sep - 30 Sep	AirAsia
28 Sep - 15 Oct	AirAsia
28 Sep - 10 Oct	AirAsia
28 Sep - 11 Oct	AirAsia
28 Sep - 07 Oct	AirAsia
28 Sep - 05 Oct	AirAsia
24 Sep - 08 Oct	AirAsia
26 Sep - 08 Oct	AirAsia
22 Sep - 08 Oct	AirAsia
26 Sep - 30 Sep	AirAsia
24 Sep - 30 Sep	AirAsia
22 Sep - 30 Sep	AirAsia
20 Sep - 30 Sep	AirAsia Cambodia
22 Sep - 24 Sep	AirAsia
18 Sep - 30 Sep	AirAsia Cambodia
21 Sep - 30 Sep	AirAsia
19 Sep - 30 Sep	AirAsia

Also check the deals for one-way flights from Sihanoukville to Ho Chi Minh City 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 Sihanoukville to Ho Chi Minh City in September from $308

Return flights