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

Return flights

05 Dec - 10 Dec	China Eastern
04 Dec - 10 Dec	Thai Lion Air
16 Dec - 13 Jan	Thai Lion Air
07 Dec - 05 Jan	AirAsia
17 Dec - 19 Dec	Thai Lion Air
16 Dec - 06 Jan	Thai AirAsia
07 Dec - 11 Dec	Air India
29 Dec - 15 Jan	Air India
24 Dec - 28 Dec	Air India
21 Dec - 28 Dec	Air India
13 Dec - 04 Jan	HK Express
18 Dec - 01 Jan	Air India
25 Dec - 01 Jan	Air India
12 Dec - 13 Dec	Greater Bay Airlines
12 Dec - 16 Dec	Greater Bay Airlines
14 Dec - 21 Dec	Thai Lion Air
13 Dec - 02 Jan	Malaysia Airlines
23 Dec - 04 Jan	Thai AirAsia
19 Dec - 28 Dec	Air India
29 Dec - 15 Jan	Cathay Pacific	direct

Also check the deals for one-way flights from Hong Kong to Colombo in December.

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 December from $324

Return flights