AirHint found the following cheapest return flights from Hong Kong (HKG) to Colombo (CMB) in September 2025 (see full year).

Return flights

10 Sep - 17 Sep	China Eastern
19 Sep - 28 Sep	China Eastern
02 Sep - 25 Sep	AirAsia
01 Sep - 04 Sep	HK Express
25 Sep - 11 Oct	HK Express
21 Sep - 25 Sep	HK Express
07 Sep - 17 Sep	AirAsia
07 Sep - 11 Sep	AirAsia
07 Sep - 23 Sep	AirAsia
16 Sep - 28 Sep	AirAsia
16 Sep - 17 Sep	AirAsia
29 Sep - 07 Oct	Batik Air Malaysia
27 Sep - 14 Oct	AirAsia
27 Sep - 11 Oct	AirAsia
25 Sep - 14 Oct	AirAsia
29 Sep - 11 Oct	Batik Air Malaysia
19 Sep - 08 Oct	AirAsia
27 Sep - 08 Oct	AirAsia
27 Sep - 13 Oct	AirAsia
25 Sep - 08 Oct	AirAsia

Also check the deals for one-way flights from Hong Kong to Colombo 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 Hong Kong to Colombo in September from 261€

Return flights