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

Return flights

17 Dec - 22 Jan	Scoot	direct
14 Dec - 08 Jan	Hainan Airlines
13 Dec - 11 Jan	Hainan Airlines
10 Dec - 14 Jan	Hainan Airlines
15 Dec - 19 Dec	HK Express
09 Dec - 15 Dec	Scoot	direct
10 Dec - 17 Dec	Hainan Airlines
15 Dec - 17 Dec	Scoot
21 Dec - 24 Dec	China Eastern
19 Dec - 21 Dec	China Eastern
06 Dec - 13 Dec	China Eastern
10 Dec - 31 Dec	Hainan Airlines
21 Dec - 27 Dec	China Eastern
13 Dec - 19 Dec	Hainan Airlines
10 Dec - 01 Jan	Hainan Airlines
21 Dec - 08 Jan	China Eastern
18 Dec - 03 Jan	Hainan Airlines
10 Dec - 14 Jan	Scoot	direct
26 Dec - 03 Jan	China Eastern
26 Dec - 12 Jan	China Eastern

Also check the deals for one-way flights from Hong Kong to Singapore 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 Singapore in December from 209€

Return flights