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

Return flights

09 Sep - 16 Sep	Singapore Airlines
04 Sep - 12 Sep	Singapore Airlines
11 Sep - 18 Sep	Singapore Airlines
06 Sep - 16 Sep	AirAsia
06 Sep - 18 Sep	AirAsia
09 Sep - 18 Sep	AirAsia
11 Sep - 16 Sep	AirAsia
09 Sep - 14 Sep	AirAsia
11 Sep - 14 Sep	AirAsia
05 Sep - 16 Sep	AirAsia
11 Sep - 01 Oct	AirAsia

Also check the deals for one-way flights from Colombo 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 Colombo to Ho Chi Minh City in September from $312

Return flights