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

Return flights

05 Sep - 12 Sep	Cathay Pacific
15 Sep - 26 Sep	AirAsia X
15 Sep - 30 Sep	AirAsia X
13 Sep - 26 Sep	AirAsia X
15 Sep - 21 Sep	Cathay Pacific
15 Sep - 19 Sep	AirAsia X
13 Sep - 30 Sep	AirAsia X
05 Sep - 19 Sep	AirAsia X
13 Sep - 19 Sep	AirAsia X
26 Sep - 30 Sep	AirAsia X
26 Sep - 16 Oct	AirAsia X
26 Sep - 19 Oct	AirAsia X
28 Sep - 19 Oct	China Eastern
27 Sep - 16 Oct	AirAsia X
29 Sep - 15 Oct	China Eastern
26 Sep - 06 Oct	Thai Lion Air
26 Sep - 08 Oct	AirAsia X
27 Sep - 06 Oct	AirAsia X
27 Sep - 08 Oct	AirAsia X
26 Sep - 07 Oct	AirAsia X

Also check the deals for one-way flights from Hangzhou 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 Hangzhou to Colombo in September from $414

Return flights