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

Return flights

27 Sep - 01 Oct	AirAsia Cambodia
30 Sep - 01 Oct	AirAsia Cambodia
27 Sep - 17 Oct	AirAsia Cambodia
30 Sep - 17 Oct	AirAsia Cambodia
30 Sep - 18 Oct	AirAsia Cambodia
27 Sep - 11 Oct	AirAsia Cambodia
30 Sep - 11 Oct	AirAsia Cambodia
27 Sep - 28 Sep	AirAsia Cambodia
27 Sep - 05 Oct	AirAsia Cambodia
30 Sep - 05 Oct	AirAsia Cambodia
27 Sep - 15 Oct	AirAsia Cambodia
26 Sep - 27 Sep	AirAsia
23 Sep - 27 Sep	AirAsia Cambodia
26 Sep - 28 Sep	AirAsia
23 Sep - 28 Sep	AirAsia Cambodia
23 Sep - 24 Sep	AirAsia Cambodia
22 Sep - 27 Sep	AirAsia
22 Sep - 28 Sep	AirAsia
23 Sep - 25 Sep	AirAsia Cambodia
24 Sep - 27 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 303€

Return flights